./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --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 5952061731474d390646c291ccf1d0136c1d856e30481accbc86db371431d703 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:04:22,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:04:22,154 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 02:04:22,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:04:22,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:04:22,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:04:22,190 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:04:22,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:04:22,191 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:04:22,192 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:04:22,193 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:04:22,193 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:04:22,194 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:04:22,195 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 02:04:22,195 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 02:04:22,196 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 02:04:22,196 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 02:04:22,197 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 02:04:22,197 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 02:04:22,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:04:22,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 02:04:22,200 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:04:22,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:04:22,201 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:04:22,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:04:22,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 02:04:22,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 02:04:22,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 02:04:22,203 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:04:22,204 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:04:22,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:04:22,204 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 02:04:22,205 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:04:22,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:04:22,206 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:04:22,206 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:04:22,206 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:04:22,207 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 02:04:22,207 INFO L153 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_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5952061731474d390646c291ccf1d0136c1d856e30481accbc86db371431d703 [2023-11-29 02:04:22,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:04:22,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:04:22,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:04:22,524 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:04:22,524 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:04:22,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.c [2023-11-29 02:04:25,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:04:25,523 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:04:25,524 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/sv-benchmarks/c/recursive-simple/fibo_2calls_8-2.c [2023-11-29 02:04:25,531 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/data/0e99b3c9e/b4f6d411cccc4006a8f43decaefe05e9/FLAG75840ac09 [2023-11-29 02:04:25,544 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/data/0e99b3c9e/b4f6d411cccc4006a8f43decaefe05e9 [2023-11-29 02:04:25,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:04:25,548 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:04:25,550 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:04:25,550 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:04:25,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:04:25,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1145dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25, skipping insertion in model container [2023-11-29 02:04:25,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,582 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:04:25,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:04:25,798 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:04:25,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:04:25,834 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:04:25,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25 WrapperNode [2023-11-29 02:04:25,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:04:25,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:04:25,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:04:25,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:04:25,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,872 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20 [2023-11-29 02:04:25,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:04:25,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:04:25,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:04:25,873 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:04:25,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,886 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,897 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 02:04:25,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,901 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,903 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:04:25,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:04:25,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:04:25,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:04:25,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (1/1) ... [2023-11-29 02:04:25,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:25,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:25,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:25,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 02:04:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:04:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:04:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2023-11-29 02:04:25,974 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2023-11-29 02:04:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2023-11-29 02:04:25,974 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2023-11-29 02:04:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:04:25,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:04:26,041 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:04:26,043 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:04:26,151 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:04:26,161 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:04:26,161 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 02:04:26,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:04:26 BoogieIcfgContainer [2023-11-29 02:04:26,163 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:04:26,164 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 02:04:26,164 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 02:04:26,168 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 02:04:26,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:04:26,169 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 02:04:25" (1/3) ... [2023-11-29 02:04:26,170 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5455c616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 02:04:26, skipping insertion in model container [2023-11-29 02:04:26,170 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:04:26,170 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:04:25" (2/3) ... [2023-11-29 02:04:26,171 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5455c616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 02:04:26, skipping insertion in model container [2023-11-29 02:04:26,171 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:04:26,171 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:04:26" (3/3) ... [2023-11-29 02:04:26,173 INFO L332 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_8-2.c [2023-11-29 02:04:26,240 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 02:04:26,240 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 02:04:26,241 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 02:04:26,241 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 02:04:26,241 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 02:04:26,241 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 02:04:26,241 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 02:04:26,242 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 02:04:26,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 02:04:26,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-11-29 02:04:26,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:04:26,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:04:26,277 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 02:04:26,278 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:26,278 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 02:04:26,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 02:04:26,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-11-29 02:04:26,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:04:26,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:04:26,283 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 02:04:26,284 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:26,291 INFO L748 eck$LassoCheckResult]: Stem: 25#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 8; 13#L39true call main_#t~ret8#1 := fibo1(main_~x~0#1);< 18#$Ultimate##0true [2023-11-29 02:04:26,291 INFO L750 eck$LassoCheckResult]: Loop: 18#$Ultimate##0true ~n := #in~n; 7#L10true assume !(~n < 1); 6#L12true assume !(1 == ~n); 8#L15true call #t~ret4 := fibo2(~n - 1);< 15#$Ultimate##0true ~n := #in~n; 10#L20true assume !(~n < 1); 14#L22true assume !(1 == ~n); 21#L25true call #t~ret6 := fibo1(~n - 1);< 18#$Ultimate##0true [2023-11-29 02:04:26,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:26,298 INFO L85 PathProgramCache]: Analyzing trace with hash 29898, now seen corresponding path program 1 times [2023-11-29 02:04:26,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:26,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957307982] [2023-11-29 02:04:26,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:26,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:26,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:04:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:26,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:04:26,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:26,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1206117480, now seen corresponding path program 1 times [2023-11-29 02:04:26,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:26,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622524061] [2023-11-29 02:04:26,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:26,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:26,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:04:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:26,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:04:26,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:26,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1276411855, now seen corresponding path program 1 times [2023-11-29 02:04:26,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:26,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668007748] [2023-11-29 02:04:26,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:26,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:26,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:04:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:26,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:04:26,754 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:26,755 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:26,755 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:26,756 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:26,756 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 02:04:26,756 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:26,756 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:26,756 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:26,757 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration1_Loop [2023-11-29 02:04:26,757 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:26,757 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:26,776 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:26,787 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:26,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:26,794 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:26,797 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:26,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:26,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:26,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:26,901 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:26,902 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 02:04:26,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:26,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:26,906 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:26,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 02:04:26,911 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:26,911 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:26,932 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:26,932 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:26,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:26,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:26,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:26,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:26,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 02:04:26,942 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:26,942 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:26,960 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:26,960 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:26,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 02:04:26,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:26,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:26,967 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:26,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 02:04:26,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:26,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:26,992 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:26,992 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:26,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 02:04:26,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:26,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:26,997 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:26,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 02:04:27,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:27,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:27,016 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:27,016 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:27,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 02:04:27,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:27,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:27,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 02:04:27,029 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:27,029 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:27,047 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:27,047 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:27,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 02:04:27,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:27,052 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:27,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 02:04:27,055 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:27,055 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:27,071 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:27,071 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:27,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:27,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:27,077 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:27,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 02:04:27,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:27,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:27,095 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:27,095 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:27,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 02:04:27,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:27,102 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:27,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 02:04:27,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:27,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:27,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-29 02:04:27,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:27,128 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:27,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 02:04:27,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:04:27,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:27,229 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 02:04:27,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-29 02:04:27,234 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:27,234 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:27,234 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:27,234 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:27,235 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 02:04:27,235 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,235 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:27,235 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:27,235 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration1_Loop [2023-11-29 02:04:27,235 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:27,235 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:27,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:27,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:27,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:27,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:27,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:27,253 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:27,266 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:27,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:27,344 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:27,349 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 02:04:27,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:27,353 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:27,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 02:04:27,356 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 [2023-11-29 02:04:27,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:27,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:27,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:27,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:27,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:27,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:27,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:27,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:27,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:27,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:27,380 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:27,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 02:04:27,383 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 [2023-11-29 02:04:27,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:27,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:27,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:27,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:27,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:27,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:27,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:27,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:27,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-29 02:04:27,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:27,405 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:27,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 02:04:27,408 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 [2023-11-29 02:04:27,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:27,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:27,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:27,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:27,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:27,422 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:27,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:27,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:27,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-29 02:04:27,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:27,429 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:27,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-29 02:04:27,432 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 [2023-11-29 02:04:27,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:27,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:27,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:27,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:27,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:27,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:27,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:27,451 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:27,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-29 02:04:27,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:27,457 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:27,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-29 02:04:27,460 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 [2023-11-29 02:04:27,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:27,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:27,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:27,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:27,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:27,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:27,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:27,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:27,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-29 02:04:27,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:27,481 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:27,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-29 02:04:27,485 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 [2023-11-29 02:04:27,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:27,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:27,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:27,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:27,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:27,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:27,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:27,505 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 02:04:27,509 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 02:04:27,510 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 02:04:27,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:27,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:27,548 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:27,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-29 02:04:27,552 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 02:04:27,552 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 02:04:27,552 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 02:04:27,553 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2023-11-29 02:04:27,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-29 02:04:27,564 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 02:04:27,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:27,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:04:27,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:27,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:04:27,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:27,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:27,781 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-29 02:04:27,783 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:04:27,991 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5). Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 85 states and 117 transitions. Complement of second has 24 states. [2023-11-29 02:04:27,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-29 02:04:27,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:04:28,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2023-11-29 02:04:28,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-29 02:04:28,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:28,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2023-11-29 02:04:28,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:28,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 3 letters. Loop has 16 letters. [2023-11-29 02:04:28,006 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:28,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 117 transitions. [2023-11-29 02:04:28,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-11-29 02:04:28,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 61 states and 82 transitions. [2023-11-29 02:04:28,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2023-11-29 02:04:28,022 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2023-11-29 02:04:28,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 82 transitions. [2023-11-29 02:04:28,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:28,024 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 82 transitions. [2023-11-29 02:04:28,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 82 transitions. [2023-11-29 02:04:28,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2023-11-29 02:04:28,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 38 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 6 states have return successors, (13), 7 states have call predecessors, (13), 10 states have call successors, (13) [2023-11-29 02:04:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2023-11-29 02:04:28,069 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 72 transitions. [2023-11-29 02:04:28,069 INFO L428 stractBuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2023-11-29 02:04:28,069 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 02:04:28,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 72 transitions. [2023-11-29 02:04:28,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-29 02:04:28,073 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-11-29 02:04:28,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:04:28,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:04:28,075 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:28,075 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:28,075 INFO L748 eck$LassoCheckResult]: Stem: 236#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 223#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 8; 218#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 217#$Ultimate##0 ~n := #in~n; 219#L10 assume !(~n < 1); 229#L12 assume !(1 == ~n); 213#L15 call #t~ret4 := fibo2(~n - 1);< 233#$Ultimate##0 ~n := #in~n; 247#L20 assume !(~n < 1); 248#L22 assume !(1 == ~n); 203#L25 call #t~ret6 := fibo1(~n - 1);< 220#$Ultimate##0 ~n := #in~n; 222#L10 assume ~n < 1;#res := 0; 209#fibo1FINAL assume true; 210#fibo1EXIT >#48#return; 211#L25-1 [2023-11-29 02:04:28,075 INFO L750 eck$LassoCheckResult]: Loop: 211#L25-1 call #t~ret7 := fibo1(~n - 2);< 216#$Ultimate##0 ~n := #in~n; 242#L10 assume !(~n < 1); 243#L12 assume !(1 == ~n); 212#L15 call #t~ret4 := fibo2(~n - 1);< 225#$Ultimate##0 ~n := #in~n; 245#L20 assume !(~n < 1); 246#L22 assume !(1 == ~n); 224#L25 call #t~ret6 := fibo1(~n - 1);< 216#$Ultimate##0 ~n := #in~n; 242#L10 assume ~n < 1;#res := 0; 238#fibo1FINAL assume true; 239#fibo1EXIT >#48#return; 211#L25-1 [2023-11-29 02:04:28,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:28,077 INFO L85 PathProgramCache]: Analyzing trace with hash -722660232, now seen corresponding path program 1 times [2023-11-29 02:04:28,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:28,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317110101] [2023-11-29 02:04:28,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:28,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:28,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 02:04:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:28,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:04:28,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:28,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317110101] [2023-11-29 02:04:28,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317110101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:04:28,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:04:28,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:04:28,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111230884] [2023-11-29 02:04:28,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:04:28,267 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 02:04:28,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:28,268 INFO L85 PathProgramCache]: Analyzing trace with hash -880179458, now seen corresponding path program 1 times [2023-11-29 02:04:28,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:28,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512271261] [2023-11-29 02:04:28,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:28,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:28,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 02:04:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:28,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:04:28,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:28,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512271261] [2023-11-29 02:04:28,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512271261] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:04:28,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:04:28,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:04:28,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188226391] [2023-11-29 02:04:28,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:04:28,360 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 02:04:28,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:28,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:04:28,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:04:28,365 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. cyclomatic complexity: 20 Second operand has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 02:04:28,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:28,443 INFO L93 Difference]: Finished difference Result 68 states and 88 transitions. [2023-11-29 02:04:28,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 88 transitions. [2023-11-29 02:04:28,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-11-29 02:04:28,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 66 states and 86 transitions. [2023-11-29 02:04:28,450 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2023-11-29 02:04:28,451 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2023-11-29 02:04:28,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 86 transitions. [2023-11-29 02:04:28,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:28,451 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 86 transitions. [2023-11-29 02:04:28,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 86 transitions. [2023-11-29 02:04:28,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 58. [2023-11-29 02:04:28,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 38 states have (on average 1.263157894736842) internal successors, (48), 42 states have internal predecessors, (48), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (16), 7 states have call predecessors, (16), 10 states have call successors, (16) [2023-11-29 02:04:28,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 76 transitions. [2023-11-29 02:04:28,461 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 76 transitions. [2023-11-29 02:04:28,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:04:28,463 INFO L428 stractBuchiCegarLoop]: Abstraction has 58 states and 76 transitions. [2023-11-29 02:04:28,463 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 02:04:28,463 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 76 transitions. [2023-11-29 02:04:28,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-11-29 02:04:28,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:04:28,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:04:28,467 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:28,467 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:28,467 INFO L748 eck$LassoCheckResult]: Stem: 381#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 364#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 8; 365#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 366#$Ultimate##0 ~n := #in~n; 367#L10 assume !(~n < 1); 395#L12 assume !(1 == ~n); 359#L15 call #t~ret4 := fibo2(~n - 1);< 379#$Ultimate##0 ~n := #in~n; 396#L20 assume !(~n < 1); 397#L22 assume !(1 == ~n); 348#L25 call #t~ret6 := fibo1(~n - 1);< 368#$Ultimate##0 ~n := #in~n; 370#L10 assume !(~n < 1); 373#L12 assume 1 == ~n;#res := 1; 374#fibo1FINAL assume true; 386#fibo1EXIT >#48#return; 355#L25-1 [2023-11-29 02:04:28,468 INFO L750 eck$LassoCheckResult]: Loop: 355#L25-1 call #t~ret7 := fibo1(~n - 2);< 362#$Ultimate##0 ~n := #in~n; 388#L10 assume !(~n < 1); 387#L12 assume !(1 == ~n); 361#L15 call #t~ret4 := fibo2(~n - 1);< 392#$Ultimate##0 ~n := #in~n; 391#L20 assume !(~n < 1); 389#L22 assume !(1 == ~n); 356#L25 call #t~ret6 := fibo1(~n - 1);< 362#$Ultimate##0 ~n := #in~n; 388#L10 assume !(~n < 1); 387#L12 assume 1 == ~n;#res := 1; 384#fibo1FINAL assume true; 385#fibo1EXIT >#48#return; 355#L25-1 [2023-11-29 02:04:28,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:28,468 INFO L85 PathProgramCache]: Analyzing trace with hash -927605802, now seen corresponding path program 1 times [2023-11-29 02:04:28,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:28,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962963389] [2023-11-29 02:04:28,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:28,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:28,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 02:04:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:28,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:28,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:28,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962963389] [2023-11-29 02:04:28,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962963389] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:28,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140051666] [2023-11-29 02:04:28,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:28,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:28,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:28,612 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:28,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 02:04:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:28,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:04:28,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:28,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:28,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:28,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:28,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140051666] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:28,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:04:28,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-11-29 02:04:28,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152965837] [2023-11-29 02:04:28,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:28,870 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 02:04:28,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:28,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1515734512, now seen corresponding path program 1 times [2023-11-29 02:04:28,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:28,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783391958] [2023-11-29 02:04:28,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:28,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:28,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:04:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:28,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:04:29,108 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:29,108 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:29,108 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:29,108 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:29,108 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 02:04:29,108 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,108 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:29,108 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:29,108 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration3_Loop [2023-11-29 02:04:29,108 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:29,109 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:29,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,113 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,118 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,135 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,138 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,205 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:29,205 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 02:04:29,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,208 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-29 02:04:29,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:29,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:29,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:29,232 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=2} Honda state: {fibo2_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:29,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-29 02:04:29,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,237 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-29 02:04:29,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:29,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:29,256 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:29,256 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:29,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-29 02:04:29,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,261 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-29 02:04:29,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:29,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:29,279 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:29,280 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:29,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:29,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,286 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-29 02:04:29,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:29,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:29,305 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:29,305 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:29,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:29,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,310 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-29 02:04:29,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:29,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:29,328 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:29,328 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:29,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:29,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,333 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-29 02:04:29,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:29,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:29,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-29 02:04:29,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,356 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-29 02:04:29,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:04:29,360 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:29,377 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 02:04:29,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:29,380 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:29,380 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:29,380 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:29,380 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:29,380 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 02:04:29,380 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,381 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:29,381 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:29,381 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration3_Loop [2023-11-29 02:04:29,381 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:29,381 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:29,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,388 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,393 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,399 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,404 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:29,468 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:29,468 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 02:04:29,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,470 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-29 02:04:29,473 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 [2023-11-29 02:04:29,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:29,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:29,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:29,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:29,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:29,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:29,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:29,490 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:29,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-29 02:04:29,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,495 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-29 02:04:29,497 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 [2023-11-29 02:04:29,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:29,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:29,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:29,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:29,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:29,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:29,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:29,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:29,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-29 02:04:29,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,518 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-29 02:04:29,520 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 [2023-11-29 02:04:29,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:29,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:29,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:29,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:29,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:29,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:29,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:29,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:29,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-29 02:04:29,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,542 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-29 02:04:29,548 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 [2023-11-29 02:04:29,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:29,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:29,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:29,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:29,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:29,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:29,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:29,567 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:29,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-29 02:04:29,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,571 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-29 02:04:29,574 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 [2023-11-29 02:04:29,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:29,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:29,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:29,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:29,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:29,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:29,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:29,590 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 02:04:29,594 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 02:04:29,594 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 02:04:29,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:29,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:29,596 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:29,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-29 02:04:29,598 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 02:04:29,598 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 02:04:29,598 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 02:04:29,598 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_~n) = 1*fibo2_~n Supporting invariants [] [2023-11-29 02:04:29,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-29 02:04:29,602 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 02:04:29,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:29,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:04:29,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:29,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:04:29,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:29,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-29 02:04:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:29,957 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2023-11-29 02:04:29,958 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 76 transitions. cyclomatic complexity: 20 Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 02:04:30,502 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 76 transitions. cyclomatic complexity: 20. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 191 states and 263 transitions. Complement of second has 40 states. [2023-11-29 02:04:30,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2023-11-29 02:04:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 02:04:30,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 73 transitions. [2023-11-29 02:04:30,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 73 transitions. Stem has 16 letters. Loop has 14 letters. [2023-11-29 02:04:30,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:30,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 73 transitions. Stem has 30 letters. Loop has 14 letters. [2023-11-29 02:04:30,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:30,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 73 transitions. Stem has 16 letters. Loop has 28 letters. [2023-11-29 02:04:30,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:30,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 191 states and 263 transitions. [2023-11-29 02:04:30,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2023-11-29 02:04:30,530 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 191 states to 169 states and 237 transitions. [2023-11-29 02:04:30,530 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 103 [2023-11-29 02:04:30,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2023-11-29 02:04:30,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 237 transitions. [2023-11-29 02:04:30,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:30,534 INFO L218 hiAutomatonCegarLoop]: Abstraction has 169 states and 237 transitions. [2023-11-29 02:04:30,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 237 transitions. [2023-11-29 02:04:30,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 152. [2023-11-29 02:04:30,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 102 states have internal predecessors, (122), 35 states have call successors, (36), 19 states have call predecessors, (36), 22 states have return successors, (48), 30 states have call predecessors, (48), 33 states have call successors, (48) [2023-11-29 02:04:30,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 206 transitions. [2023-11-29 02:04:30,560 INFO L240 hiAutomatonCegarLoop]: Abstraction has 152 states and 206 transitions. [2023-11-29 02:04:30,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:30,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:04:30,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:04:30,562 INFO L87 Difference]: Start difference. First operand 152 states and 206 transitions. Second operand has 16 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 02:04:30,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:30,838 INFO L93 Difference]: Finished difference Result 213 states and 281 transitions. [2023-11-29 02:04:30,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 213 states and 281 transitions. [2023-11-29 02:04:30,845 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2023-11-29 02:04:30,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 213 states to 204 states and 272 transitions. [2023-11-29 02:04:30,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 133 [2023-11-29 02:04:30,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2023-11-29 02:04:30,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 204 states and 272 transitions. [2023-11-29 02:04:30,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:30,852 INFO L218 hiAutomatonCegarLoop]: Abstraction has 204 states and 272 transitions. [2023-11-29 02:04:30,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states and 272 transitions. [2023-11-29 02:04:30,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 192. [2023-11-29 02:04:30,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 120 states have (on average 1.225) internal successors, (147), 129 states have internal predecessors, (147), 44 states have call successors, (46), 24 states have call predecessors, (46), 28 states have return successors, (64), 38 states have call predecessors, (64), 42 states have call successors, (64) [2023-11-29 02:04:30,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 257 transitions. [2023-11-29 02:04:30,874 INFO L240 hiAutomatonCegarLoop]: Abstraction has 192 states and 257 transitions. [2023-11-29 02:04:30,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:04:30,875 INFO L428 stractBuchiCegarLoop]: Abstraction has 192 states and 257 transitions. [2023-11-29 02:04:30,876 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 02:04:30,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 192 states and 257 transitions. [2023-11-29 02:04:30,878 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2023-11-29 02:04:30,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:04:30,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:04:30,880 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:30,881 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:30,881 INFO L748 eck$LassoCheckResult]: Stem: 1313#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 1276#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 8; 1277#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 1316#$Ultimate##0 ~n := #in~n; 1301#L10 assume !(~n < 1); 1302#L12 assume !(1 == ~n); 1246#L15 call #t~ret4 := fibo2(~n - 1);< 1353#$Ultimate##0 ~n := #in~n; 1352#L20 assume !(~n < 1); 1245#L22 assume !(1 == ~n); 1247#L25 call #t~ret6 := fibo1(~n - 1);< 1274#$Ultimate##0 ~n := #in~n; 1275#L10 assume !(~n < 1); 1292#L12 assume !(1 == ~n); 1293#L15 call #t~ret4 := fibo2(~n - 1);< 1304#$Ultimate##0 ~n := #in~n; 1425#L20 assume !(~n < 1); 1424#L22 assume !(1 == ~n); 1278#L25 call #t~ret6 := fibo1(~n - 1);< 1346#$Ultimate##0 ~n := #in~n; 1347#L10 assume !(~n < 1); 1355#L12 assume !(1 == ~n); 1356#L15 call #t~ret4 := fibo2(~n - 1);< 1364#$Ultimate##0 ~n := #in~n; 1368#L20 assume ~n < 1;#res := 0; 1367#fibo2FINAL assume true; 1363#fibo2EXIT >#52#return; 1360#L15-1 call #t~ret5 := fibo2(~n - 2);< 1361#$Ultimate##0 ~n := #in~n; 1365#L20 assume ~n < 1;#res := 0; 1362#fibo2FINAL assume true; 1359#fibo2EXIT >#54#return; 1357#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 1358#fibo1FINAL assume true; 1423#fibo1EXIT >#48#return; 1255#L25-1 call #t~ret7 := fibo1(~n - 2);< 1345#$Ultimate##0 ~n := #in~n; 1374#L10 assume ~n < 1;#res := 0; 1253#fibo1FINAL assume true; 1256#fibo1EXIT >#50#return; 1422#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 1420#fibo2FINAL assume true; 1417#fibo2EXIT >#52#return; 1295#L15-1 call #t~ret5 := fibo2(~n - 2);< 1303#$Ultimate##0 [2023-11-29 02:04:30,881 INFO L750 eck$LassoCheckResult]: Loop: 1303#$Ultimate##0 ~n := #in~n; 1429#L20 assume !(~n < 1); 1430#L22 assume !(1 == ~n); 1272#L25 call #t~ret6 := fibo1(~n - 1);< 1269#$Ultimate##0 ~n := #in~n; 1273#L10 assume !(~n < 1); 1289#L12 assume !(1 == ~n); 1291#L15 call #t~ret4 := fibo2(~n - 1);< 1303#$Ultimate##0 [2023-11-29 02:04:30,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:30,882 INFO L85 PathProgramCache]: Analyzing trace with hash 441703261, now seen corresponding path program 1 times [2023-11-29 02:04:30,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:30,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050038963] [2023-11-29 02:04:30,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:30,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:30,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 02:04:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:30,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:31,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:31,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 02:04:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:31,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 02:04:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:31,059 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 02:04:31,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:31,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050038963] [2023-11-29 02:04:31,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050038963] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:31,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884188971] [2023-11-29 02:04:31,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:31,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:31,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:31,061 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:31,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 02:04:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:31,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:04:31,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 02:04:31,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:31,902 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:04:31,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884188971] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:31,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:04:31,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 14, 15] total 25 [2023-11-29 02:04:31,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240598951] [2023-11-29 02:04:31,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:31,904 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 02:04:31,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:31,905 INFO L85 PathProgramCache]: Analyzing trace with hash 996300776, now seen corresponding path program 2 times [2023-11-29 02:04:31,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:31,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912601077] [2023-11-29 02:04:31,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:31,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:31,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:04:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:31,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:04:32,034 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:32,034 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:32,034 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:32,034 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:32,035 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 02:04:32,035 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,035 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:32,035 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:32,035 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration4_Loop [2023-11-29 02:04:32,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:32,035 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:32,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,041 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,044 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,046 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,060 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,113 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:32,113 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 02:04:32,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,120 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-29 02:04:32,123 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:32,123 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:32,140 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:32,140 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:32,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-29 02:04:32,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,146 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-29 02:04:32,150 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:32,150 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:32,168 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:32,168 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:32,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-11-29 02:04:32,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,172 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-29 02:04:32,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:32,175 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:32,190 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:32,190 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:32,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:32,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,195 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-29 02:04:32,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:32,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:32,214 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:32,214 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:32,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-11-29 02:04:32,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,219 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-29 02:04:32,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:32,224 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:32,241 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:32,242 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:32,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-11-29 02:04:32,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,247 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-29 02:04:32,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:32,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:32,264 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:32,264 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:32,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2023-11-29 02:04:32,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,268 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-29 02:04:32,270 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:32,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:32,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:32,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,292 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-29 02:04:32,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:04:32,295 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:32,372 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 02:04:32,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:32,376 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:32,376 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:32,376 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:32,376 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:32,376 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 02:04:32,376 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,376 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:32,376 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:32,376 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration4_Loop [2023-11-29 02:04:32,376 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:32,376 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:32,377 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,380 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,383 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,385 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,389 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:32,442 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:32,443 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 02:04:32,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,444 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-29 02:04:32,446 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 02:04:32,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:32,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:32,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:32,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:32,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:32,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:32,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:32,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:32,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-11-29 02:04:32,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,467 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-29 02:04:32,472 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 [2023-11-29 02:04:32,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:32,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:32,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:32,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:32,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:32,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:32,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:32,488 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:32,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-11-29 02:04:32,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,493 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-29 02:04:32,496 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 [2023-11-29 02:04:32,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:32,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:32,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:32,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:32,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:32,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:32,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:32,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:32,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-11-29 02:04:32,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,517 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-29 02:04:32,528 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 [2023-11-29 02:04:32,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:32,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:32,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:32,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:32,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:32,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:32,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:32,542 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:32,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-11-29 02:04:32,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,547 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-29 02:04:32,549 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 [2023-11-29 02:04:32,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:32,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:32,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:32,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:32,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:32,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:32,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:32,564 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:32,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:32,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,568 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-29 02:04:32,571 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 [2023-11-29 02:04:32,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:32,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:32,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:32,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:32,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:32,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:32,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:32,589 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:32,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-11-29 02:04:32,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,594 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-29 02:04:32,598 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 [2023-11-29 02:04:32,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:32,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:32,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:32,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:32,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:32,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:32,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:32,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 02:04:32,617 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 02:04:32,617 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 02:04:32,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:32,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:32,618 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:32,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-29 02:04:32,621 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 02:04:32,621 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 02:04:32,621 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 02:04:32,621 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2023-11-29 02:04:32,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-11-29 02:04:32,624 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 02:04:32,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:32,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:04:32,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:33,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:04:33,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:33,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:33,172 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2023-11-29 02:04:33,173 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 192 states and 257 transitions. cyclomatic complexity: 70 Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:33,384 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 192 states and 257 transitions. cyclomatic complexity: 70. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 698 states and 973 transitions. Complement of second has 26 states. [2023-11-29 02:04:33,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-29 02:04:33,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:33,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 40 transitions. [2023-11-29 02:04:33,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 44 letters. Loop has 8 letters. [2023-11-29 02:04:33,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:33,388 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 02:04:33,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:33,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:04:33,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:33,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-29 02:04:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:33,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:04:33,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:33,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:33,921 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 5 loop predicates [2023-11-29 02:04:33,921 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 192 states and 257 transitions. cyclomatic complexity: 70 Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:34,125 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 192 states and 257 transitions. cyclomatic complexity: 70. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 698 states and 973 transitions. Complement of second has 26 states. [2023-11-29 02:04:34,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-29 02:04:34,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:34,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 40 transitions. [2023-11-29 02:04:34,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 44 letters. Loop has 8 letters. [2023-11-29 02:04:34,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:34,127 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 02:04:34,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:34,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:04:34,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:34,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:04:34,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:34,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:34,614 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 5 loop predicates [2023-11-29 02:04:34,614 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 192 states and 257 transitions. cyclomatic complexity: 70 Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:34,785 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 192 states and 257 transitions. cyclomatic complexity: 70. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 587 states and 803 transitions. Complement of second has 25 states. [2023-11-29 02:04:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-29 02:04:34,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:34,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 43 transitions. [2023-11-29 02:04:34,789 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 44 letters. Loop has 8 letters. [2023-11-29 02:04:34,789 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:34,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 52 letters. Loop has 8 letters. [2023-11-29 02:04:34,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:34,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 44 letters. Loop has 16 letters. [2023-11-29 02:04:34,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:34,792 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 587 states and 803 transitions. [2023-11-29 02:04:34,801 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2023-11-29 02:04:34,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 587 states to 476 states and 676 transitions. [2023-11-29 02:04:34,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2023-11-29 02:04:34,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 246 [2023-11-29 02:04:34,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 476 states and 676 transitions. [2023-11-29 02:04:34,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:34,813 INFO L218 hiAutomatonCegarLoop]: Abstraction has 476 states and 676 transitions. [2023-11-29 02:04:34,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states and 676 transitions. [2023-11-29 02:04:34,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 401. [2023-11-29 02:04:34,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 267 states have (on average 1.2621722846441947) internal successors, (337), 290 states have internal predecessors, (337), 78 states have call successors, (81), 60 states have call predecessors, (81), 56 states have return successors, (126), 50 states have call predecessors, (126), 76 states have call successors, (126) [2023-11-29 02:04:34,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 544 transitions. [2023-11-29 02:04:34,852 INFO L240 hiAutomatonCegarLoop]: Abstraction has 401 states and 544 transitions. [2023-11-29 02:04:34,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:34,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 02:04:34,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:04:34,853 INFO L87 Difference]: Start difference. First operand 401 states and 544 transitions. Second operand has 25 states, 22 states have (on average 2.590909090909091) internal successors, (57), 20 states have internal predecessors, (57), 16 states have call successors, (21), 7 states have call predecessors, (21), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-29 02:04:35,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:35,429 INFO L93 Difference]: Finished difference Result 499 states and 693 transitions. [2023-11-29 02:04:35,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 499 states and 693 transitions. [2023-11-29 02:04:35,438 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2023-11-29 02:04:35,445 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 499 states to 457 states and 645 transitions. [2023-11-29 02:04:35,446 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 256 [2023-11-29 02:04:35,446 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2023-11-29 02:04:35,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 457 states and 645 transitions. [2023-11-29 02:04:35,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:35,447 INFO L218 hiAutomatonCegarLoop]: Abstraction has 457 states and 645 transitions. [2023-11-29 02:04:35,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states and 645 transitions. [2023-11-29 02:04:35,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 414. [2023-11-29 02:04:35,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 269 states have (on average 1.20817843866171) internal successors, (325), 298 states have internal predecessors, (325), 85 states have call successors, (87), 57 states have call predecessors, (87), 60 states have return successors, (161), 58 states have call predecessors, (161), 83 states have call successors, (161) [2023-11-29 02:04:35,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 573 transitions. [2023-11-29 02:04:35,470 INFO L240 hiAutomatonCegarLoop]: Abstraction has 414 states and 573 transitions. [2023-11-29 02:04:35,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 02:04:35,471 INFO L428 stractBuchiCegarLoop]: Abstraction has 414 states and 573 transitions. [2023-11-29 02:04:35,472 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-29 02:04:35,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 414 states and 573 transitions. [2023-11-29 02:04:35,475 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2023-11-29 02:04:35,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:04:35,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:04:35,481 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:35,481 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [12, 11, 10, 10, 9, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2] [2023-11-29 02:04:35,481 INFO L748 eck$LassoCheckResult]: Stem: 5357#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 5323#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 8; 5324#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 5364#$Ultimate##0 ~n := #in~n; 5411#L10 assume !(~n < 1); 5410#L12 assume !(1 == ~n); 5406#L15 call #t~ret4 := fibo2(~n - 1);< 5409#$Ultimate##0 ~n := #in~n; 5408#L20 assume !(~n < 1); 5407#L22 assume !(1 == ~n); 5402#L25 call #t~ret6 := fibo1(~n - 1);< 5405#$Ultimate##0 ~n := #in~n; 5404#L10 assume !(~n < 1); 5403#L12 assume !(1 == ~n); 5398#L15 call #t~ret4 := fibo2(~n - 1);< 5401#$Ultimate##0 ~n := #in~n; 5400#L20 assume !(~n < 1); 5399#L22 assume !(1 == ~n); 5394#L25 call #t~ret6 := fibo1(~n - 1);< 5397#$Ultimate##0 ~n := #in~n; 5396#L10 assume !(~n < 1); 5395#L12 assume !(1 == ~n); 5379#L15 call #t~ret4 := fibo2(~n - 1);< 5377#$Ultimate##0 ~n := #in~n; 5387#L20 assume !(~n < 1); 5388#L22 assume !(1 == ~n); 5331#L25 call #t~ret6 := fibo1(~n - 1);< 5389#$Ultimate##0 ~n := #in~n; 5390#L10 assume !(~n < 1); 5507#L12 assume 1 == ~n;#res := 1; 5508#fibo1FINAL assume true; 5495#fibo1EXIT >#48#return; 5467#L25-1 call #t~ret7 := fibo1(~n - 2);< 5490#$Ultimate##0 ~n := #in~n; 5473#L10 assume !(~n < 1); 5474#L12 assume !(1 == ~n); 5461#L15 call #t~ret4 := fibo2(~n - 1);< 5465#$Ultimate##0 ~n := #in~n; 5464#L20 assume !(~n < 1); 5462#L22 assume 1 == ~n;#res := 1; 5463#fibo2FINAL assume true; 5601#fibo2EXIT >#52#return; 5522#L15-1 [2023-11-29 02:04:35,482 INFO L750 eck$LassoCheckResult]: Loop: 5522#L15-1 call #t~ret5 := fibo2(~n - 2);< 5529#$Ultimate##0 ~n := #in~n; 5302#L20 assume !(~n < 1); 5517#L22 assume !(1 == ~n); 5523#L25 call #t~ret6 := fibo1(~n - 1);< 5577#$Ultimate##0 ~n := #in~n; 5524#L10 assume !(~n < 1); 5525#L12 assume 1 == ~n;#res := 1; 5608#fibo1FINAL assume true; 5620#fibo1EXIT >#48#return; 5571#L25-1 call #t~ret7 := fibo1(~n - 2);< 5619#$Ultimate##0 ~n := #in~n; 5618#L10 assume !(~n < 1); 5617#L12 assume !(1 == ~n); 5298#L15 call #t~ret4 := fibo2(~n - 1);< 5297#$Ultimate##0 ~n := #in~n; 5302#L20 assume !(~n < 1); 5517#L22 assume !(1 == ~n); 5523#L25 call #t~ret6 := fibo1(~n - 1);< 5577#$Ultimate##0 ~n := #in~n; 5524#L10 assume !(~n < 1); 5525#L12 assume !(1 == ~n); 5300#L15 call #t~ret4 := fibo2(~n - 1);< 5297#$Ultimate##0 ~n := #in~n; 5302#L20 assume !(~n < 1); 5517#L22 assume !(1 == ~n); 5523#L25 call #t~ret6 := fibo1(~n - 1);< 5577#$Ultimate##0 ~n := #in~n; 5524#L10 assume !(~n < 1); 5525#L12 assume 1 == ~n;#res := 1; 5608#fibo1FINAL assume true; 5620#fibo1EXIT >#48#return; 5571#L25-1 call #t~ret7 := fibo1(~n - 2);< 5619#$Ultimate##0 ~n := #in~n; 5618#L10 assume !(~n < 1); 5617#L12 assume !(1 == ~n); 5298#L15 call #t~ret4 := fibo2(~n - 1);< 5297#$Ultimate##0 ~n := #in~n; 5301#L20 assume !(~n < 1); 5606#L22 assume !(1 == ~n); 5604#L25 call #t~ret6 := fibo1(~n - 1);< 5641#$Ultimate##0 ~n := #in~n; 5644#L10 assume !(~n < 1); 5643#L12 assume 1 == ~n;#res := 1; 5642#fibo1FINAL assume true; 5640#fibo1EXIT >#48#return; 5637#L25-1 call #t~ret7 := fibo1(~n - 2);< 5638#$Ultimate##0 ~n := #in~n; 5653#L10 assume ~n < 1;#res := 0; 5652#fibo1FINAL assume true; 5636#fibo1EXIT >#50#return; 5566#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 5632#fibo2FINAL assume true; 5596#fibo2EXIT >#52#return; 5522#L15-1 call #t~ret5 := fibo2(~n - 2);< 5529#$Ultimate##0 ~n := #in~n; 5530#L20 assume ~n < 1;#res := 0; 5598#fibo2FINAL assume true; 5597#fibo2EXIT >#54#return; 5546#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5639#fibo1FINAL assume true; 5635#fibo1EXIT >#50#return; 5566#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 5632#fibo2FINAL assume true; 5596#fibo2EXIT >#52#return; 5519#L15-1 call #t~ret5 := fibo2(~n - 2);< 5529#$Ultimate##0 ~n := #in~n; 5530#L20 assume ~n < 1;#res := 0; 5598#fibo2FINAL assume true; 5597#fibo2EXIT >#54#return; 5544#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5592#fibo1FINAL assume true; 5575#fibo1EXIT >#48#return; 5562#L25-1 call #t~ret7 := fibo1(~n - 2);< 5568#$Ultimate##0 ~n := #in~n; 5614#L10 assume !(~n < 1); 5611#L12 assume !(1 == ~n); 5555#L15 call #t~ret4 := fibo2(~n - 1);< 5572#$Ultimate##0 ~n := #in~n; 5587#L20 assume !(~n < 1); 5583#L22 assume !(1 == ~n); 5565#L25 call #t~ret6 := fibo1(~n - 1);< 5568#$Ultimate##0 ~n := #in~n; 5614#L10 assume !(~n < 1); 5611#L12 assume 1 == ~n;#res := 1; 5610#fibo1FINAL assume true; 5616#fibo1EXIT >#48#return; 5560#L25-1 call #t~ret7 := fibo1(~n - 2);< 5615#$Ultimate##0 ~n := #in~n; 5612#L10 assume !(~n < 1); 5609#L12 assume !(1 == ~n); 5556#L15 call #t~ret4 := fibo2(~n - 1);< 5572#$Ultimate##0 ~n := #in~n; 5587#L20 assume !(~n < 1); 5583#L22 assume !(1 == ~n); 5565#L25 call #t~ret6 := fibo1(~n - 1);< 5568#$Ultimate##0 ~n := #in~n; 5614#L10 assume !(~n < 1); 5611#L12 assume 1 == ~n;#res := 1; 5610#fibo1FINAL assume true; 5616#fibo1EXIT >#48#return; 5560#L25-1 call #t~ret7 := fibo1(~n - 2);< 5615#$Ultimate##0 ~n := #in~n; 5612#L10 assume ~n < 1;#res := 0; 5613#fibo1FINAL assume true; 5559#fibo1EXIT >#50#return; 5566#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 5632#fibo2FINAL assume true; 5596#fibo2EXIT >#52#return; 5522#L15-1 call #t~ret5 := fibo2(~n - 2);< 5529#$Ultimate##0 ~n := #in~n; 5530#L20 assume ~n < 1;#res := 0; 5598#fibo2FINAL assume true; 5597#fibo2EXIT >#54#return; 5546#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5639#fibo1FINAL assume true; 5635#fibo1EXIT >#50#return; 5566#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 5632#fibo2FINAL assume true; 5596#fibo2EXIT >#52#return; 5519#L15-1 call #t~ret5 := fibo2(~n - 2);< 5529#$Ultimate##0 ~n := #in~n; 5530#L20 assume ~n < 1;#res := 0; 5598#fibo2FINAL assume true; 5597#fibo2EXIT >#54#return; 5544#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5592#fibo1FINAL assume true; 5575#fibo1EXIT >#50#return; 5567#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 5570#fibo2FINAL assume true; 5554#fibo2EXIT >#52#return; 5522#L15-1 [2023-11-29 02:04:35,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:35,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1086211661, now seen corresponding path program 1 times [2023-11-29 02:04:35,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:35,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281188649] [2023-11-29 02:04:35,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:35,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:35,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 02:04:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:35,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 02:04:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 15 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:35,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:35,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281188649] [2023-11-29 02:04:35,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281188649] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:35,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173304059] [2023-11-29 02:04:35,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:35,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:35,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:35,741 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:35,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 02:04:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:35,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:04:35,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 24 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:35,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:36,081 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 15 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:36,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173304059] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:36,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:04:36,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 19 [2023-11-29 02:04:36,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180442383] [2023-11-29 02:04:36,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:36,083 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 02:04:36,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:36,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1084313501, now seen corresponding path program 1 times [2023-11-29 02:04:36,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:36,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770742998] [2023-11-29 02:04:36,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:36,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-29 02:04:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 02:04:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 02:04:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 02:04:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 02:04:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 02:04:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 02:04:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 02:04:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 02:04:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 02:04:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 02:04:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,369 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 2 proven. 76 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2023-11-29 02:04:36,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:36,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770742998] [2023-11-29 02:04:36,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770742998] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:36,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957937307] [2023-11-29 02:04:36,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:36,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:36,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:36,371 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:36,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 02:04:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:36,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:04:36,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 107 proven. 1 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2023-11-29 02:04:36,501 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:36,753 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 2 proven. 76 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2023-11-29 02:04:36,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957937307] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:36,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:04:36,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2023-11-29 02:04:36,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624659104] [2023-11-29 02:04:36,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:36,756 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 02:04:36,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:36,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 02:04:36,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:04:36,757 INFO L87 Difference]: Start difference. First operand 414 states and 573 transitions. cyclomatic complexity: 166 Second operand has 19 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 13 states have internal predecessors, (41), 8 states have call successors, (10), 8 states have call predecessors, (10), 3 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 02:04:37,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:37,103 INFO L93 Difference]: Finished difference Result 436 states and 604 transitions. [2023-11-29 02:04:37,103 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 436 states and 604 transitions. [2023-11-29 02:04:37,111 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2023-11-29 02:04:37,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 436 states to 431 states and 597 transitions. [2023-11-29 02:04:37,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 231 [2023-11-29 02:04:37,120 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 231 [2023-11-29 02:04:37,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 431 states and 597 transitions. [2023-11-29 02:04:37,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:37,121 INFO L218 hiAutomatonCegarLoop]: Abstraction has 431 states and 597 transitions. [2023-11-29 02:04:37,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states and 597 transitions. [2023-11-29 02:04:37,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 425. [2023-11-29 02:04:37,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 276 states have (on average 1.2028985507246377) internal successors, (332), 304 states have internal predecessors, (332), 89 states have call successors, (92), 60 states have call predecessors, (92), 60 states have return successors, (152), 60 states have call predecessors, (152), 87 states have call successors, (152) [2023-11-29 02:04:37,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 576 transitions. [2023-11-29 02:04:37,143 INFO L240 hiAutomatonCegarLoop]: Abstraction has 425 states and 576 transitions. [2023-11-29 02:04:37,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:04:37,144 INFO L428 stractBuchiCegarLoop]: Abstraction has 425 states and 576 transitions. [2023-11-29 02:04:37,144 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-29 02:04:37,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 425 states and 576 transitions. [2023-11-29 02:04:37,149 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2023-11-29 02:04:37,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:04:37,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:04:37,151 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:37,152 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1] [2023-11-29 02:04:37,152 INFO L748 eck$LassoCheckResult]: Stem: 7748#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 7700#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 8; 7701#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 7754#$Ultimate##0 ~n := #in~n; 7823#L10 assume !(~n < 1); 7822#L12 assume !(1 == ~n); 7818#L15 call #t~ret4 := fibo2(~n - 1);< 7821#$Ultimate##0 ~n := #in~n; 7820#L20 assume !(~n < 1); 7819#L22 assume !(1 == ~n); 7814#L25 call #t~ret6 := fibo1(~n - 1);< 7817#$Ultimate##0 ~n := #in~n; 7816#L10 assume !(~n < 1); 7815#L12 assume !(1 == ~n); 7810#L15 call #t~ret4 := fibo2(~n - 1);< 7813#$Ultimate##0 ~n := #in~n; 7812#L20 assume !(~n < 1); 7811#L22 assume !(1 == ~n); 7806#L25 call #t~ret6 := fibo1(~n - 1);< 7809#$Ultimate##0 ~n := #in~n; 7808#L10 assume !(~n < 1); 7807#L12 assume !(1 == ~n); 7795#L15 call #t~ret4 := fibo2(~n - 1);< 7805#$Ultimate##0 ~n := #in~n; 7804#L20 assume !(~n < 1); 7800#L22 assume !(1 == ~n); 7715#L25 call #t~ret6 := fibo1(~n - 1);< 7796#$Ultimate##0 ~n := #in~n; 7802#L10 assume !(~n < 1); 7904#L12 assume !(1 == ~n); 7867#L15 call #t~ret4 := fibo2(~n - 1);< 7906#$Ultimate##0 ~n := #in~n; 7910#L20 assume !(~n < 1); 7908#L22 assume 1 == ~n;#res := 1; 7907#fibo2FINAL assume true; 7905#fibo2EXIT >#52#return; 7902#L15-1 call #t~ret5 := fibo2(~n - 2);< 7903#$Ultimate##0 ~n := #in~n; 7911#L20 assume ~n < 1;#res := 0; 7909#fibo2FINAL assume true; 7901#fibo2EXIT >#54#return; 7899#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 7898#fibo1FINAL assume true; 7896#fibo1EXIT >#48#return; 7882#L25-1 call #t~ret7 := fibo1(~n - 2);< 7890#$Ultimate##0 ~n := #in~n; 7986#L10 assume ~n < 1;#res := 0; 7970#fibo1FINAL assume true; 7965#fibo1EXIT >#50#return; 7959#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 7958#fibo2FINAL assume true; 7954#fibo2EXIT >#52#return; 7694#L15-1 call #t~ret5 := fibo2(~n - 2);< 7952#$Ultimate##0 [2023-11-29 02:04:37,152 INFO L750 eck$LassoCheckResult]: Loop: 7952#$Ultimate##0 ~n := #in~n; 7680#L20 assume !(~n < 1); 7918#L22 assume !(1 == ~n); 7689#L25 call #t~ret6 := fibo1(~n - 1);< 7895#$Ultimate##0 ~n := #in~n; 7894#L10 assume !(~n < 1); 7893#L12 assume !(1 == ~n); 7677#L15 call #t~ret4 := fibo2(~n - 1);< 7676#$Ultimate##0 ~n := #in~n; 7680#L20 assume !(~n < 1); 7918#L22 assume !(1 == ~n); 7689#L25 call #t~ret6 := fibo1(~n - 1);< 7895#$Ultimate##0 ~n := #in~n; 7894#L10 assume !(~n < 1); 7893#L12 assume !(1 == ~n); 7677#L15 call #t~ret4 := fibo2(~n - 1);< 7676#$Ultimate##0 ~n := #in~n; 7679#L20 assume !(~n < 1); 8065#L22 assume 1 == ~n;#res := 1; 8018#fibo2FINAL assume true; 7976#fibo2EXIT >#52#return; 7692#L15-1 call #t~ret5 := fibo2(~n - 2);< 7952#$Ultimate##0 ~n := #in~n; 8001#L20 assume ~n < 1;#res := 0; 8000#fibo2FINAL assume true; 7973#fibo2EXIT >#54#return; 7950#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 7947#fibo1FINAL assume true; 7935#fibo1EXIT >#48#return; 7941#L25-1 call #t~ret7 := fibo1(~n - 2);< 7944#$Ultimate##0 ~n := #in~n; 7997#L10 assume !(~n < 1); 7996#L12 assume !(1 == ~n); 7722#L15 call #t~ret4 := fibo2(~n - 1);< 7978#$Ultimate##0 ~n := #in~n; 7985#L20 assume !(~n < 1); 7983#L22 assume !(1 == ~n); 7940#L25 call #t~ret6 := fibo1(~n - 1);< 7944#$Ultimate##0 ~n := #in~n; 7997#L10 assume !(~n < 1); 7996#L12 assume !(1 == ~n); 7722#L15 call #t~ret4 := fibo2(~n - 1);< 7978#$Ultimate##0 ~n := #in~n; 7985#L20 assume !(~n < 1); 7983#L22 assume 1 == ~n;#res := 1; 7984#fibo2FINAL assume true; 7975#fibo2EXIT >#52#return; 7692#L15-1 call #t~ret5 := fibo2(~n - 2);< 7952#$Ultimate##0 ~n := #in~n; 8001#L20 assume ~n < 1;#res := 0; 8000#fibo2FINAL assume true; 7973#fibo2EXIT >#54#return; 7950#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 7947#fibo1FINAL assume true; 7935#fibo1EXIT >#48#return; 7941#L25-1 call #t~ret7 := fibo1(~n - 2);< 7944#$Ultimate##0 ~n := #in~n; 7997#L10 assume ~n < 1;#res := 0; 7991#fibo1FINAL assume true; 7964#fibo1EXIT >#50#return; 7699#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 7725#fibo2FINAL assume true; 7972#fibo2EXIT >#52#return; 7692#L15-1 call #t~ret5 := fibo2(~n - 2);< 7952#$Ultimate##0 ~n := #in~n; 8001#L20 assume ~n < 1;#res := 0; 8000#fibo2FINAL assume true; 7973#fibo2EXIT >#54#return; 7950#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 7947#fibo1FINAL assume true; 7935#fibo1EXIT >#50#return; 7699#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 7725#fibo2FINAL assume true; 7972#fibo2EXIT >#52#return; 7692#L15-1 call #t~ret5 := fibo2(~n - 2);< 7952#$Ultimate##0 [2023-11-29 02:04:37,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:37,153 INFO L85 PathProgramCache]: Analyzing trace with hash 138509055, now seen corresponding path program 1 times [2023-11-29 02:04:37,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:37,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412545552] [2023-11-29 02:04:37,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:37,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:37,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 02:04:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:37,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:37,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:37,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 02:04:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:37,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 02:04:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:37,502 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 5 proven. 54 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 02:04:37,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:37,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412545552] [2023-11-29 02:04:37,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412545552] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:37,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286693362] [2023-11-29 02:04:37,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:37,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:37,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:37,511 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:37,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 02:04:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:37,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:04:37,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 8 proven. 55 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 02:04:37,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:37,946 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 8 proven. 55 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 02:04:37,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286693362] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:37,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:04:37,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 24 [2023-11-29 02:04:37,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981632523] [2023-11-29 02:04:37,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:37,947 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 02:04:37,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:37,948 INFO L85 PathProgramCache]: Analyzing trace with hash -96284739, now seen corresponding path program 1 times [2023-11-29 02:04:37,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:37,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538658494] [2023-11-29 02:04:37,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:37,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 02:04:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 02:04:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 02:04:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 02:04:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 02:04:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 02:04:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 34 proven. 36 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 02:04:38,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:38,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538658494] [2023-11-29 02:04:38,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538658494] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:38,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851616673] [2023-11-29 02:04:38,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:38,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:38,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:38,282 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:38,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 02:04:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:38,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:04:38,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 45 proven. 45 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 02:04:38,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:38,858 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 45 proven. 45 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 02:04:38,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851616673] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:38,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:04:38,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2023-11-29 02:04:38,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367016375] [2023-11-29 02:04:38,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:38,859 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 02:04:38,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:38,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 02:04:38,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:04:38,861 INFO L87 Difference]: Start difference. First operand 425 states and 576 transitions. cyclomatic complexity: 158 Second operand has 24 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 18 states have internal predecessors, (49), 12 states have call successors, (17), 7 states have call predecessors, (17), 5 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 02:04:39,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:39,286 INFO L93 Difference]: Finished difference Result 456 states and 630 transitions. [2023-11-29 02:04:39,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 456 states and 630 transitions. [2023-11-29 02:04:39,294 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2023-11-29 02:04:39,302 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 456 states to 456 states and 630 transitions. [2023-11-29 02:04:39,302 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 251 [2023-11-29 02:04:39,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 251 [2023-11-29 02:04:39,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 456 states and 630 transitions. [2023-11-29 02:04:39,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:39,303 INFO L218 hiAutomatonCegarLoop]: Abstraction has 456 states and 630 transitions. [2023-11-29 02:04:39,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states and 630 transitions. [2023-11-29 02:04:39,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 438. [2023-11-29 02:04:39,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 284 states have (on average 1.1971830985915493) internal successors, (340), 314 states have internal predecessors, (340), 90 states have call successors, (93), 61 states have call predecessors, (93), 64 states have return successors, (159), 62 states have call predecessors, (159), 88 states have call successors, (159) [2023-11-29 02:04:39,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 592 transitions. [2023-11-29 02:04:39,326 INFO L240 hiAutomatonCegarLoop]: Abstraction has 438 states and 592 transitions. [2023-11-29 02:04:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 02:04:39,327 INFO L428 stractBuchiCegarLoop]: Abstraction has 438 states and 592 transitions. [2023-11-29 02:04:39,327 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-29 02:04:39,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 438 states and 592 transitions. [2023-11-29 02:04:39,332 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2023-11-29 02:04:39,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:04:39,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:04:39,333 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:39,334 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:39,334 INFO L748 eck$LassoCheckResult]: Stem: 9702#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 9662#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 8; 9663#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 9708#$Ultimate##0 ~n := #in~n; 9774#L10 assume !(~n < 1); 9773#L12 assume !(1 == ~n); 9769#L15 call #t~ret4 := fibo2(~n - 1);< 9772#$Ultimate##0 ~n := #in~n; 9771#L20 assume !(~n < 1); 9770#L22 assume !(1 == ~n); 9765#L25 call #t~ret6 := fibo1(~n - 1);< 9768#$Ultimate##0 ~n := #in~n; 9767#L10 assume !(~n < 1); 9766#L12 assume !(1 == ~n); 9761#L15 call #t~ret4 := fibo2(~n - 1);< 9764#$Ultimate##0 ~n := #in~n; 9763#L20 assume !(~n < 1); 9762#L22 assume !(1 == ~n); 9757#L25 call #t~ret6 := fibo1(~n - 1);< 9760#$Ultimate##0 ~n := #in~n; 9759#L10 assume !(~n < 1); 9758#L12 assume !(1 == ~n); 9743#L15 call #t~ret4 := fibo2(~n - 1);< 9755#$Ultimate##0 ~n := #in~n; 9754#L20 assume !(~n < 1); 9751#L22 assume !(1 == ~n); 9683#L25 call #t~ret6 := fibo1(~n - 1);< 9744#$Ultimate##0 ~n := #in~n; 9733#L10 assume !(~n < 1); 9734#L12 assume !(1 == ~n); 9722#L15 call #t~ret4 := fibo2(~n - 1);< 9723#$Ultimate##0 ~n := #in~n; 9735#L20 assume !(~n < 1); 9736#L22 assume !(1 == ~n); 9682#L25 call #t~ret6 := fibo1(~n - 1);< 9744#$Ultimate##0 ~n := #in~n; 9752#L10 assume !(~n < 1); 9852#L12 assume 1 == ~n;#res := 1; 9850#fibo1FINAL assume true; 9846#fibo1EXIT >#48#return; 9826#L25-1 call #t~ret7 := fibo1(~n - 2);< 9843#$Ultimate##0 ~n := #in~n; 9945#L10 assume ~n < 1;#res := 0; 9946#fibo1FINAL assume true; 10011#fibo1EXIT >#50#return; 9940#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 10006#fibo2FINAL assume true; 9949#fibo2EXIT >#52#return; 9863#L15-1 [2023-11-29 02:04:39,334 INFO L750 eck$LassoCheckResult]: Loop: 9863#L15-1 call #t~ret5 := fibo2(~n - 2);< 9892#$Ultimate##0 ~n := #in~n; 9951#L20 assume !(~n < 1); 9859#L22 assume !(1 == ~n); 9866#L25 call #t~ret6 := fibo1(~n - 1);< 9944#$Ultimate##0 ~n := #in~n; 9976#L10 assume !(~n < 1); 9974#L12 assume !(1 == ~n); 9860#L15 call #t~ret4 := fibo2(~n - 1);< 9956#$Ultimate##0 ~n := #in~n; 9985#L20 assume !(~n < 1); 9983#L22 assume !(1 == ~n); 9984#L25 call #t~ret6 := fibo1(~n - 1);< 9995#$Ultimate##0 ~n := #in~n; 9999#L10 assume !(~n < 1); 9998#L12 assume 1 == ~n;#res := 1; 9997#fibo1FINAL assume true; 9994#fibo1EXIT >#48#return; 9967#L25-1 call #t~ret7 := fibo1(~n - 2);< 9969#$Ultimate##0 ~n := #in~n; 9978#L10 assume ~n < 1;#res := 0; 9979#fibo1FINAL assume true; 10001#fibo1EXIT >#50#return; 9988#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 9987#fibo2FINAL assume true; 9952#fibo2EXIT >#52#return; 9863#L15-1 [2023-11-29 02:04:39,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:39,335 INFO L85 PathProgramCache]: Analyzing trace with hash -377478758, now seen corresponding path program 1 times [2023-11-29 02:04:39,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:39,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627110410] [2023-11-29 02:04:39,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:39,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:39,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 02:04:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:39,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:39,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 02:04:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:39,684 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 36 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:04:39,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:39,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627110410] [2023-11-29 02:04:39,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627110410] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:39,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29929751] [2023-11-29 02:04:39,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:39,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:39,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:39,689 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:39,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 02:04:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:39,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:04:39,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 36 proven. 35 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:04:39,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 36 proven. 35 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:04:40,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29929751] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:40,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:04:40,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 25 [2023-11-29 02:04:40,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152940613] [2023-11-29 02:04:40,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:40,205 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 02:04:40,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:40,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1404661389, now seen corresponding path program 1 times [2023-11-29 02:04:40,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:40,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324870855] [2023-11-29 02:04:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:40,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:40,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:04:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:40,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:04:40,518 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:40,518 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:40,518 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:40,518 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:40,519 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 02:04:40,519 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,519 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:40,519 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:40,519 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration7_Loop [2023-11-29 02:04:40,519 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:40,519 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:40,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,539 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,595 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:40,596 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 02:04:40,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,597 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-29 02:04:40,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:40,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:40,619 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:40,619 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:40,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2023-11-29 02:04:40,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,623 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-29 02:04:40,628 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:40,628 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:40,642 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:40,642 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:40,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-11-29 02:04:40,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,647 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-29 02:04:40,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:40,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:40,663 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:40,663 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:40,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2023-11-29 02:04:40,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,667 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-29 02:04:40,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:40,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:40,685 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:40,685 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:40,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2023-11-29 02:04:40,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,689 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-29 02:04:40,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:40,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:40,711 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:40,711 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=1} Honda state: {fibo1_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:40,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2023-11-29 02:04:40,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,715 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-29 02:04:40,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:40,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:40,732 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:40,732 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:40,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2023-11-29 02:04:40,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,737 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-29 02:04:40,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:40,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:40,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:40,755 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=3} Honda state: {fibo1_#in~n=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:40,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:40,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,759 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-29 02:04:40,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:40,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:40,776 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:40,776 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:40,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2023-11-29 02:04:40,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,781 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-29 02:04:40,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:40,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:40,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2023-11-29 02:04:40,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,806 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-29 02:04:40,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:04:40,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:40,826 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 02:04:40,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2023-11-29 02:04:40,829 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:40,829 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:40,829 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:40,829 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:40,829 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 02:04:40,829 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,829 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:40,829 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:40,830 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration7_Loop [2023-11-29 02:04:40,830 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:40,830 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:40,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,833 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,834 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,836 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,840 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,843 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,848 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,851 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:40,906 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:40,907 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 02:04:40,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,908 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-11-29 02:04:40,912 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 [2023-11-29 02:04:40,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:40,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:40,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:40,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:40,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:40,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:40,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:40,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:40,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2023-11-29 02:04:40,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,934 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2023-11-29 02:04:40,937 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 [2023-11-29 02:04:40,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:40,950 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:40,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:40,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:40,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:40,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:40,951 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:40,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:40,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2023-11-29 02:04:40,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,962 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-11-29 02:04:40,965 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 [2023-11-29 02:04:40,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:40,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:40,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:40,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:40,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:40,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:40,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:40,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:40,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2023-11-29 02:04:40,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:40,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:40,984 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:40,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-11-29 02:04:40,987 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 [2023-11-29 02:04:40,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:40,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:40,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:40,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:40,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:41,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:41,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:41,001 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:41,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2023-11-29 02:04:41,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:41,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:41,005 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:41,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2023-11-29 02:04:41,008 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 [2023-11-29 02:04:41,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:41,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:41,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:41,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:41,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:41,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:41,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:41,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:41,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2023-11-29 02:04:41,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:41,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:41,026 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:41,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2023-11-29 02:04:41,029 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 [2023-11-29 02:04:41,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:41,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:41,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:41,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:41,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:41,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:41,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:41,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:41,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2023-11-29 02:04:41,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:41,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:41,048 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:41,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2023-11-29 02:04:41,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 02:04:41,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:41,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:41,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:41,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:41,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:41,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:41,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:41,067 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 02:04:41,071 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 02:04:41,071 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 02:04:41,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:41,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:41,072 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:41,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2023-11-29 02:04:41,075 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 02:04:41,075 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 02:04:41,075 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 02:04:41,075 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_~n) = 1*fibo1_~n Supporting invariants [] [2023-11-29 02:04:41,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2023-11-29 02:04:41,079 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 02:04:41,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:41,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 02:04:41,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:41,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 02:04:41,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:41,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2023-11-29 02:04:41,604 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 02:04:41,605 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 10 loop predicates [2023-11-29 02:04:41,606 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 438 states and 592 transitions. cyclomatic complexity: 161 Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 9 states have internal predecessors, (36), 7 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 02:04:42,100 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 438 states and 592 transitions. cyclomatic complexity: 161. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 9 states have internal predecessors, (36), 7 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Result 1825 states and 2492 transitions. Complement of second has 46 states. [2023-11-29 02:04:42,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 2 stem states 10 non-accepting loop states 1 accepting loop states [2023-11-29 02:04:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 9 states have internal predecessors, (36), 7 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 02:04:42,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 68 transitions. [2023-11-29 02:04:42,103 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 68 transitions. Stem has 48 letters. Loop has 26 letters. [2023-11-29 02:04:42,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:42,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 68 transitions. Stem has 74 letters. Loop has 26 letters. [2023-11-29 02:04:42,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:42,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 68 transitions. Stem has 48 letters. Loop has 52 letters. [2023-11-29 02:04:42,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:42,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1825 states and 2492 transitions. [2023-11-29 02:04:42,136 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 143 [2023-11-29 02:04:42,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1825 states to 1659 states and 2309 transitions. [2023-11-29 02:04:42,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 586 [2023-11-29 02:04:42,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 620 [2023-11-29 02:04:42,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1659 states and 2309 transitions. [2023-11-29 02:04:42,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:42,170 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1659 states and 2309 transitions. [2023-11-29 02:04:42,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states and 2309 transitions. [2023-11-29 02:04:42,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1574. [2023-11-29 02:04:42,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1000 states have (on average 1.224) internal successors, (1224), 1129 states have internal predecessors, (1224), 331 states have call successors, (346), 202 states have call predecessors, (346), 243 states have return successors, (620), 242 states have call predecessors, (620), 329 states have call successors, (620) [2023-11-29 02:04:42,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 2190 transitions. [2023-11-29 02:04:42,253 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1574 states and 2190 transitions. [2023-11-29 02:04:42,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:42,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 02:04:42,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2023-11-29 02:04:42,255 INFO L87 Difference]: Start difference. First operand 1574 states and 2190 transitions. Second operand has 26 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 18 states have internal predecessors, (45), 12 states have call successors, (13), 8 states have call predecessors, (13), 3 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 02:04:42,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:42,987 INFO L93 Difference]: Finished difference Result 1762 states and 2206 transitions. [2023-11-29 02:04:42,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1762 states and 2206 transitions. [2023-11-29 02:04:43,013 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 147 [2023-11-29 02:04:43,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1762 states to 769 states and 919 transitions. [2023-11-29 02:04:43,023 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 423 [2023-11-29 02:04:43,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 423 [2023-11-29 02:04:43,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 769 states and 919 transitions. [2023-11-29 02:04:43,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:43,024 INFO L218 hiAutomatonCegarLoop]: Abstraction has 769 states and 919 transitions. [2023-11-29 02:04:43,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states and 919 transitions. [2023-11-29 02:04:43,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 647. [2023-11-29 02:04:43,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 421 states have (on average 1.156769596199525) internal successors, (487), 461 states have internal predecessors, (487), 136 states have call successors, (138), 100 states have call predecessors, (138), 90 states have return successors, (142), 85 states have call predecessors, (142), 102 states have call successors, (142) [2023-11-29 02:04:43,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 767 transitions. [2023-11-29 02:04:43,051 INFO L240 hiAutomatonCegarLoop]: Abstraction has 647 states and 767 transitions. [2023-11-29 02:04:43,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 02:04:43,052 INFO L428 stractBuchiCegarLoop]: Abstraction has 647 states and 767 transitions. [2023-11-29 02:04:43,052 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-29 02:04:43,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 647 states and 767 transitions. [2023-11-29 02:04:43,058 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 104 [2023-11-29 02:04:43,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:04:43,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:04:43,059 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:43,060 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:43,060 INFO L748 eck$LassoCheckResult]: Stem: 15974#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 15947#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 8; 15948#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 15979#$Ultimate##0 ~n := #in~n; 16052#L10 assume !(~n < 1); 16051#L12 assume !(1 == ~n); 16047#L15 call #t~ret4 := fibo2(~n - 1);< 16050#$Ultimate##0 ~n := #in~n; 16049#L20 assume !(~n < 1); 16048#L22 assume !(1 == ~n); 16043#L25 call #t~ret6 := fibo1(~n - 1);< 16046#$Ultimate##0 ~n := #in~n; 16045#L10 assume !(~n < 1); 16044#L12 assume !(1 == ~n); 16039#L15 call #t~ret4 := fibo2(~n - 1);< 16042#$Ultimate##0 ~n := #in~n; 16041#L20 assume !(~n < 1); 16040#L22 assume !(1 == ~n); 16035#L25 call #t~ret6 := fibo1(~n - 1);< 16038#$Ultimate##0 ~n := #in~n; 16037#L10 assume !(~n < 1); 16036#L12 assume !(1 == ~n); 16031#L15 call #t~ret4 := fibo2(~n - 1);< 16034#$Ultimate##0 ~n := #in~n; 16033#L20 assume !(~n < 1); 16032#L22 assume !(1 == ~n); 16026#L25 call #t~ret6 := fibo1(~n - 1);< 16029#$Ultimate##0 ~n := #in~n; 16030#L10 assume !(~n < 1); 16111#L12 assume !(1 == ~n); 16112#L15 call #t~ret4 := fibo2(~n - 1);< 16176#$Ultimate##0 ~n := #in~n; 16180#L20 assume !(~n < 1); 16179#L22 assume 1 == ~n;#res := 1; 16178#fibo2FINAL assume true; 16175#fibo2EXIT >#52#return; 16172#L15-1 call #t~ret5 := fibo2(~n - 2);< 16173#$Ultimate##0 ~n := #in~n; 16177#L20 assume ~n < 1;#res := 0; 16174#fibo2FINAL assume true; 16171#fibo2EXIT >#54#return; 16170#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 16169#fibo1FINAL assume true; 16136#fibo1EXIT >#48#return; 16137#L25-1 call #t~ret7 := fibo1(~n - 2);< 16376#$Ultimate##0 ~n := #in~n; 16417#L10 assume !(~n < 1); 16416#L12 assume !(1 == ~n); 16334#L15 call #t~ret4 := fibo2(~n - 1);< 16333#$Ultimate##0 ~n := #in~n; 16336#L20 assume !(~n < 1); 16391#L22 assume 1 == ~n;#res := 1; 16389#fibo2FINAL assume true; 16387#fibo2EXIT >#52#return; 16224#L15-1 [2023-11-29 02:04:43,060 INFO L750 eck$LassoCheckResult]: Loop: 16224#L15-1 call #t~ret5 := fibo2(~n - 2);< 16233#$Ultimate##0 ~n := #in~n; 16302#L20 assume !(~n < 1); 16349#L22 assume !(1 == ~n); 16258#L25 call #t~ret6 := fibo1(~n - 1);< 16347#$Ultimate##0 ~n := #in~n; 16345#L10 assume !(~n < 1); 16342#L12 assume !(1 == ~n); 16266#L15 call #t~ret4 := fibo2(~n - 1);< 16273#$Ultimate##0 ~n := #in~n; 16300#L20 assume !(~n < 1); 16297#L22 assume 1 == ~n;#res := 1; 16284#fibo2FINAL assume true; 16272#fibo2EXIT >#52#return; 16224#L15-1 [2023-11-29 02:04:43,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:43,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1790184504, now seen corresponding path program 1 times [2023-11-29 02:04:43,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:43,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119877578] [2023-11-29 02:04:43,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:43,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:43,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 02:04:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:43,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:43,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 02:04:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:43,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 02:04:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:43,353 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 40 proven. 36 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 02:04:43,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:43,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119877578] [2023-11-29 02:04:43,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119877578] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:43,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541111358] [2023-11-29 02:04:43,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:43,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:43,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:43,356 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:43,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 02:04:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:43,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:04:43,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:43,509 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 47 proven. 36 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:04:43,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 47 proven. 36 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 02:04:43,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541111358] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:43,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:04:43,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 21 [2023-11-29 02:04:43,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035863084] [2023-11-29 02:04:43,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:43,738 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 02:04:43,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:43,739 INFO L85 PathProgramCache]: Analyzing trace with hash -815837104, now seen corresponding path program 1 times [2023-11-29 02:04:43,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:43,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888900323] [2023-11-29 02:04:43,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:43,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:43,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:04:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:43,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:04:43,937 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:43,937 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:43,937 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:43,937 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:43,937 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 02:04:43,937 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:43,938 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:43,938 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:43,938 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration8_Loop [2023-11-29 02:04:43,938 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:43,938 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:43,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:43,942 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:43,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:43,946 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:43,949 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:43,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:43,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:43,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:43,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:44,013 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:44,013 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 02:04:44,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,015 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2023-11-29 02:04:44,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:44,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:44,034 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:44,034 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:44,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2023-11-29 02:04:44,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,038 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2023-11-29 02:04:44,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:44,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:44,055 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:44,055 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:44,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:44,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,058 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2023-11-29 02:04:44,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:44,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:44,075 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:44,075 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:44,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2023-11-29 02:04:44,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,079 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2023-11-29 02:04:44,081 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:44,081 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:44,095 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:44,095 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:44,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2023-11-29 02:04:44,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,099 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2023-11-29 02:04:44,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:44,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:44,115 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:44,116 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:44,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2023-11-29 02:04:44,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,120 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2023-11-29 02:04:44,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:44,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:44,136 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:44,136 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:44,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2023-11-29 02:04:44,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,140 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2023-11-29 02:04:44,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:44,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:44,156 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:44,156 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=1} Honda state: {fibo1_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:44,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:44,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,160 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2023-11-29 02:04:44,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:44,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:44,179 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 02:04:44,179 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=2} Honda state: {fibo1_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 02:04:44,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:44,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,183 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2023-11-29 02:04:44,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:44,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:44,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2023-11-29 02:04:44,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,203 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2023-11-29 02:04:44,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:04:44,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:44,224 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 02:04:44,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:44,227 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:44,227 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:44,227 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:44,227 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:44,228 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 02:04:44,228 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,228 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:44,228 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:44,228 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration8_Loop [2023-11-29 02:04:44,228 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:44,228 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:44,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:44,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:44,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:44,235 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:44,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:44,238 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:44,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:44,242 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:44,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:44,297 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:44,297 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 02:04:44,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,299 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2023-11-29 02:04:44,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 02:04:44,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:44,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:44,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:44,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:44,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:44,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:44,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:44,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:44,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:44,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,320 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2023-11-29 02:04:44,322 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 [2023-11-29 02:04:44,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:44,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:44,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:44,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:44,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:44,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:44,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:44,337 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:44,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2023-11-29 02:04:44,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,341 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2023-11-29 02:04:44,343 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 [2023-11-29 02:04:44,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:44,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:44,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:44,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:44,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:44,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:44,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:44,358 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:44,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:44,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,362 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2023-11-29 02:04:44,365 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 [2023-11-29 02:04:44,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:44,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:44,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:44,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:44,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:44,377 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:44,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:44,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:44,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2023-11-29 02:04:44,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,382 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2023-11-29 02:04:44,385 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 [2023-11-29 02:04:44,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:44,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:44,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:44,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:44,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:44,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:44,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:44,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:44,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:44,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,403 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2023-11-29 02:04:44,405 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 [2023-11-29 02:04:44,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:44,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:44,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:44,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:44,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:44,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:44,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:44,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:44,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2023-11-29 02:04:44,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,424 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2023-11-29 02:04:44,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 02:04:44,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:44,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:44,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:44,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:44,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:44,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:44,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:44,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:44,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:44,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,445 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2023-11-29 02:04:44,448 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 [2023-11-29 02:04:44,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:44,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:44,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:44,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:44,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:44,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:44,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:44,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 02:04:44,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2023-11-29 02:04:44,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,466 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2023-11-29 02:04:44,469 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 02:04:44,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:44,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:44,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:44,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:44,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:44,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:44,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:44,485 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 02:04:44,488 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 02:04:44,488 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 02:04:44,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:44,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:44,489 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:44,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2023-11-29 02:04:44,492 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 02:04:44,493 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 02:04:44,493 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 02:04:44,493 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_~n) = 1*fibo1_~n Supporting invariants [] [2023-11-29 02:04:44,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2023-11-29 02:04:44,496 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 02:04:44,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:44,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 02:04:44,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:44,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:04:44,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:44,882 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2023-11-29 02:04:44,882 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 647 states and 767 transitions. cyclomatic complexity: 134 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 02:04:44,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2023-11-29 02:04:45,216 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 647 states and 767 transitions. cyclomatic complexity: 134. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 932 states and 1091 transitions. Complement of second has 40 states. [2023-11-29 02:04:45,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2023-11-29 02:04:45,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 02:04:45,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 56 transitions. [2023-11-29 02:04:45,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 56 transitions. Stem has 54 letters. Loop has 14 letters. [2023-11-29 02:04:45,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:45,218 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 02:04:45,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:45,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 02:04:45,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:45,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:04:45,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:45,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:45,661 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 8 loop predicates [2023-11-29 02:04:45,661 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 647 states and 767 transitions. cyclomatic complexity: 134 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 02:04:45,896 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 647 states and 767 transitions. cyclomatic complexity: 134. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 1128 states and 1301 transitions. Complement of second has 26 states. [2023-11-29 02:04:45,896 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 [2023-11-29 02:04:45,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 02:04:45,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2023-11-29 02:04:45,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 54 letters. Loop has 14 letters. [2023-11-29 02:04:45,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:45,898 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 02:04:45,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:45,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 02:04:45,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:46,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:04:46,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:46,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:46,392 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 8 loop predicates [2023-11-29 02:04:46,392 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 647 states and 767 transitions. cyclomatic complexity: 134 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 02:04:46,854 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 647 states and 767 transitions. cyclomatic complexity: 134. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 2054 states and 2442 transitions. Complement of second has 102 states. [2023-11-29 02:04:46,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2023-11-29 02:04:46,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 02:04:46,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 72 transitions. [2023-11-29 02:04:46,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 72 transitions. Stem has 54 letters. Loop has 14 letters. [2023-11-29 02:04:46,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:46,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 72 transitions. Stem has 68 letters. Loop has 14 letters. [2023-11-29 02:04:46,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:46,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 72 transitions. Stem has 54 letters. Loop has 28 letters. [2023-11-29 02:04:46,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:46,860 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2054 states and 2442 transitions. [2023-11-29 02:04:46,888 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 247 [2023-11-29 02:04:46,902 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2054 states to 1246 states and 1524 transitions. [2023-11-29 02:04:46,902 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 545 [2023-11-29 02:04:46,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 593 [2023-11-29 02:04:46,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1246 states and 1524 transitions. [2023-11-29 02:04:46,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:46,903 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1246 states and 1524 transitions. [2023-11-29 02:04:46,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states and 1524 transitions. [2023-11-29 02:04:46,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1061. [2023-11-29 02:04:46,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 686 states have (on average 1.1574344023323615) internal successors, (794), 762 states have internal predecessors, (794), 219 states have call successors, (232), 156 states have call predecessors, (232), 156 states have return successors, (259), 142 states have call predecessors, (259), 179 states have call successors, (259) [2023-11-29 02:04:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1285 transitions. [2023-11-29 02:04:46,941 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1061 states and 1285 transitions. [2023-11-29 02:04:46,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:46,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 02:04:46,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:04:46,942 INFO L87 Difference]: Start difference. First operand 1061 states and 1285 transitions. Second operand has 21 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (12), 8 states have call predecessors, (12), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 02:04:47,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:47,398 INFO L93 Difference]: Finished difference Result 745 states and 889 transitions. [2023-11-29 02:04:47,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 745 states and 889 transitions. [2023-11-29 02:04:47,405 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2023-11-29 02:04:47,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 745 states to 569 states and 691 transitions. [2023-11-29 02:04:47,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 319 [2023-11-29 02:04:47,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 343 [2023-11-29 02:04:47,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 569 states and 691 transitions. [2023-11-29 02:04:47,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:47,412 INFO L218 hiAutomatonCegarLoop]: Abstraction has 569 states and 691 transitions. [2023-11-29 02:04:47,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states and 691 transitions. [2023-11-29 02:04:47,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 550. [2023-11-29 02:04:47,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 356 states have (on average 1.1292134831460674) internal successors, (402), 392 states have internal predecessors, (402), 112 states have call successors, (119), 76 states have call predecessors, (119), 82 states have return successors, (146), 81 states have call predecessors, (146), 101 states have call successors, (146) [2023-11-29 02:04:47,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 667 transitions. [2023-11-29 02:04:47,426 INFO L240 hiAutomatonCegarLoop]: Abstraction has 550 states and 667 transitions. [2023-11-29 02:04:47,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 02:04:47,427 INFO L428 stractBuchiCegarLoop]: Abstraction has 550 states and 667 transitions. [2023-11-29 02:04:47,427 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-29 02:04:47,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 550 states and 667 transitions. [2023-11-29 02:04:47,433 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2023-11-29 02:04:47,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:04:47,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:04:47,434 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:47,434 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:47,434 INFO L748 eck$LassoCheckResult]: Stem: 23819#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 23783#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 8; 23784#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 23825#$Ultimate##0 ~n := #in~n; 23893#L10 assume !(~n < 1); 23892#L12 assume !(1 == ~n); 23890#L15 call #t~ret4 := fibo2(~n - 1);< 23891#$Ultimate##0 ~n := #in~n; 23914#L20 assume !(~n < 1); 23913#L22 assume !(1 == ~n); 23901#L25 call #t~ret6 := fibo1(~n - 1);< 23902#$Ultimate##0 ~n := #in~n; 23993#L10 assume !(~n < 1); 23991#L12 assume !(1 == ~n); 23988#L15 call #t~ret4 := fibo2(~n - 1);< 23989#$Ultimate##0 ~n := #in~n; 24065#L20 assume !(~n < 1); 24057#L22 assume !(1 == ~n); 24054#L25 call #t~ret6 := fibo1(~n - 1);< 24055#$Ultimate##0 ~n := #in~n; 24084#L10 assume !(~n < 1); 24083#L12 assume !(1 == ~n); 24081#L15 call #t~ret4 := fibo2(~n - 1);< 24082#$Ultimate##0 ~n := #in~n; 24098#L20 assume !(~n < 1); 24095#L22 assume !(1 == ~n); 24092#L25 call #t~ret6 := fibo1(~n - 1);< 24093#$Ultimate##0 ~n := #in~n; 24128#L10 assume !(~n < 1); 24127#L12 assume !(1 == ~n); 24125#L15 call #t~ret4 := fibo2(~n - 1);< 24126#$Ultimate##0 ~n := #in~n; 24131#L20 assume !(~n < 1); 24130#L22 assume 1 == ~n;#res := 1; 24129#fibo2FINAL assume true; 24124#fibo2EXIT >#52#return; 24122#L15-1 call #t~ret5 := fibo2(~n - 2);< 24123#$Ultimate##0 ~n := #in~n; 24133#L20 assume ~n < 1;#res := 0; 24132#fibo2FINAL assume true; 24121#fibo2EXIT >#54#return; 24119#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 24117#fibo1FINAL assume true; 24091#fibo1EXIT >#48#return; 24088#L25-1 call #t~ret7 := fibo1(~n - 2);< 24089#$Ultimate##0 ~n := #in~n; 24136#L10 assume !(~n < 1); 24135#L12 assume 1 == ~n;#res := 1; 24134#fibo1FINAL assume true; 24087#fibo1EXIT >#50#return; 24086#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 24085#fibo2FINAL assume true; 24080#fibo2EXIT >#52#return; 23746#L15-1 call #t~ret5 := fibo2(~n - 2);< 24064#$Ultimate##0 ~n := #in~n; 24096#L20 assume !(~n < 1); 24094#L22 assume 1 == ~n;#res := 1; 24090#fibo2FINAL assume true; 24078#fibo2EXIT >#54#return; 24062#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 24077#fibo1FINAL assume true; 24053#fibo1EXIT >#48#return; 23944#L25-1 call #t~ret7 := fibo1(~n - 2);< 24052#$Ultimate##0 ~n := #in~n; 24249#L10 assume !(~n < 1); 24248#L12 assume !(1 == ~n); 23973#L15 call #t~ret4 := fibo2(~n - 1);< 24069#$Ultimate##0 [2023-11-29 02:04:47,434 INFO L750 eck$LassoCheckResult]: Loop: 24069#$Ultimate##0 ~n := #in~n; 24120#L20 assume !(~n < 1); 24118#L22 assume !(1 == ~n); 23773#L25 call #t~ret6 := fibo1(~n - 1);< 23769#$Ultimate##0 ~n := #in~n; 24105#L10 assume !(~n < 1); 24102#L12 assume !(1 == ~n); 24060#L15 call #t~ret4 := fibo2(~n - 1);< 24069#$Ultimate##0 [2023-11-29 02:04:47,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:47,435 INFO L85 PathProgramCache]: Analyzing trace with hash -96157049, now seen corresponding path program 1 times [2023-11-29 02:04:47,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:47,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828190395] [2023-11-29 02:04:47,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:47,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:47,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 02:04:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:47,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:47,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:47,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:47,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 02:04:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:47,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 02:04:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:47,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 02:04:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:47,778 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 39 proven. 64 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 02:04:47,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:47,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828190395] [2023-11-29 02:04:47,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828190395] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:47,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772851808] [2023-11-29 02:04:47,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:47,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:47,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:47,781 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:47,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 02:04:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:47,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 02:04:47,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 59 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-29 02:04:47,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:48,288 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 59 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-29 02:04:48,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772851808] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:48,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:04:48,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 15] total 25 [2023-11-29 02:04:48,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448214273] [2023-11-29 02:04:48,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:48,289 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 02:04:48,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:48,289 INFO L85 PathProgramCache]: Analyzing trace with hash 996300776, now seen corresponding path program 3 times [2023-11-29 02:04:48,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:48,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15192209] [2023-11-29 02:04:48,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:48,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:48,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:04:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:48,295 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:04:48,404 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:48,404 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:48,404 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:48,404 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:48,404 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 02:04:48,404 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:48,404 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:48,405 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:48,405 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration9_Loop [2023-11-29 02:04:48,405 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:48,405 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:48,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,418 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,420 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,469 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:48,469 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 02:04:48,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:48,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:48,471 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:48,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2023-11-29 02:04:48,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:48,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:48,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2023-11-29 02:04:48,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:48,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:48,491 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:48,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2023-11-29 02:04:48,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:04:48,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:48,577 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 02:04:48,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2023-11-29 02:04:48,581 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:48,581 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:48,581 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:48,581 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:48,581 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 02:04:48,581 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:48,581 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:48,581 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:48,581 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration9_Loop [2023-11-29 02:04:48,581 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:48,581 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:48,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,590 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,592 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,594 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,596 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,600 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:48,641 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:48,641 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 02:04:48,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:48,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:48,643 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:48,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2023-11-29 02:04:48,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-29 02:04:48,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:48,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:48,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:48,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:48,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:48,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:48,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:48,679 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 02:04:48,681 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-29 02:04:48,681 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 02:04:48,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:48,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:48,682 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:48,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2023-11-29 02:04:48,684 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 02:04:48,684 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 02:04:48,684 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 02:04:48,685 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2023-11-29 02:04:48,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2023-11-29 02:04:48,688 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 02:04:48,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:48,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 02:04:48,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:49,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:04:49,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:49,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:49,150 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2023-11-29 02:04:49,151 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 550 states and 667 transitions. cyclomatic complexity: 124 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:49,245 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 550 states and 667 transitions. cyclomatic complexity: 124. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 575 states and 692 transitions. Complement of second has 15 states. [2023-11-29 02:04:49,245 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 [2023-11-29 02:04:49,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:49,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 17 transitions. [2023-11-29 02:04:49,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 67 letters. Loop has 8 letters. [2023-11-29 02:04:49,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:49,246 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 02:04:49,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:49,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 02:04:49,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:49,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:04:49,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:49,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:49,774 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 5 loop predicates [2023-11-29 02:04:49,774 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 550 states and 667 transitions. cyclomatic complexity: 124 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:49,902 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 550 states and 667 transitions. cyclomatic complexity: 124. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 575 states and 692 transitions. Complement of second has 15 states. [2023-11-29 02:04:49,903 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 [2023-11-29 02:04:49,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:49,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 17 transitions. [2023-11-29 02:04:49,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 67 letters. Loop has 8 letters. [2023-11-29 02:04:49,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:49,904 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 02:04:49,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:50,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 02:04:50,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:50,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2023-11-29 02:04:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:50,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:04:50,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:50,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:50,527 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 5 loop predicates [2023-11-29 02:04:50,528 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 550 states and 667 transitions. cyclomatic complexity: 124 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:50,692 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 550 states and 667 transitions. cyclomatic complexity: 124. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 937 states and 1091 transitions. Complement of second has 27 states. [2023-11-29 02:04:50,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-29 02:04:50,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:50,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 42 transitions. [2023-11-29 02:04:50,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 42 transitions. Stem has 67 letters. Loop has 8 letters. [2023-11-29 02:04:50,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:50,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 42 transitions. Stem has 75 letters. Loop has 8 letters. [2023-11-29 02:04:50,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:50,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 42 transitions. Stem has 67 letters. Loop has 16 letters. [2023-11-29 02:04:50,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:50,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 937 states and 1091 transitions. [2023-11-29 02:04:50,705 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2023-11-29 02:04:50,710 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 937 states to 666 states and 790 transitions. [2023-11-29 02:04:50,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 348 [2023-11-29 02:04:50,711 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 378 [2023-11-29 02:04:50,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 666 states and 790 transitions. [2023-11-29 02:04:50,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:50,711 INFO L218 hiAutomatonCegarLoop]: Abstraction has 666 states and 790 transitions. [2023-11-29 02:04:50,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states and 790 transitions. [2023-11-29 02:04:50,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 587. [2023-11-29 02:04:50,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 390 states have (on average 1.123076923076923) internal successors, (438), 423 states have internal predecessors, (438), 115 states have call successors, (122), 83 states have call predecessors, (122), 82 states have return successors, (140), 80 states have call predecessors, (140), 102 states have call successors, (140) [2023-11-29 02:04:50,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 700 transitions. [2023-11-29 02:04:50,726 INFO L240 hiAutomatonCegarLoop]: Abstraction has 587 states and 700 transitions. [2023-11-29 02:04:50,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:50,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 02:04:50,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:04:50,727 INFO L87 Difference]: Start difference. First operand 587 states and 700 transitions. Second operand has 25 states, 21 states have (on average 2.761904761904762) internal successors, (58), 19 states have internal predecessors, (58), 13 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (16), 10 states have call predecessors, (16), 8 states have call successors, (16) [2023-11-29 02:04:51,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:51,254 INFO L93 Difference]: Finished difference Result 752 states and 952 transitions. [2023-11-29 02:04:51,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 752 states and 952 transitions. [2023-11-29 02:04:51,265 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2023-11-29 02:04:51,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 752 states to 690 states and 870 transitions. [2023-11-29 02:04:51,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 372 [2023-11-29 02:04:51,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 372 [2023-11-29 02:04:51,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 690 states and 870 transitions. [2023-11-29 02:04:51,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 02:04:51,277 INFO L218 hiAutomatonCegarLoop]: Abstraction has 690 states and 870 transitions. [2023-11-29 02:04:51,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states and 870 transitions. [2023-11-29 02:04:51,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 639. [2023-11-29 02:04:51,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 418 states have (on average 1.1196172248803828) internal successors, (468), 452 states have internal predecessors, (468), 127 states have call successors, (135), 85 states have call predecessors, (135), 94 states have return successors, (206), 101 states have call predecessors, (206), 110 states have call successors, (206) [2023-11-29 02:04:51,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 809 transitions. [2023-11-29 02:04:51,305 INFO L240 hiAutomatonCegarLoop]: Abstraction has 639 states and 809 transitions. [2023-11-29 02:04:51,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 02:04:51,306 INFO L428 stractBuchiCegarLoop]: Abstraction has 639 states and 809 transitions. [2023-11-29 02:04:51,306 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-29 02:04:51,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 639 states and 809 transitions. [2023-11-29 02:04:51,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2023-11-29 02:04:51,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:04:51,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:04:51,314 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 7, 7, 6, 6, 5, 5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:51,314 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:51,314 INFO L748 eck$LassoCheckResult]: Stem: 29125#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 29093#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 8; 29094#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 29131#$Ultimate##0 ~n := #in~n; 29163#L10 assume !(~n < 1); 29161#L12 assume !(1 == ~n); 29158#L15 call #t~ret4 := fibo2(~n - 1);< 29159#$Ultimate##0 ~n := #in~n; 29173#L20 assume !(~n < 1); 29171#L22 assume !(1 == ~n); 29168#L25 call #t~ret6 := fibo1(~n - 1);< 29169#$Ultimate##0 ~n := #in~n; 29183#L10 assume !(~n < 1); 29181#L12 assume !(1 == ~n); 29178#L15 call #t~ret4 := fibo2(~n - 1);< 29179#$Ultimate##0 ~n := #in~n; 29206#L20 assume !(~n < 1); 29204#L22 assume !(1 == ~n); 29201#L25 call #t~ret6 := fibo1(~n - 1);< 29202#$Ultimate##0 ~n := #in~n; 29229#L10 assume !(~n < 1); 29227#L12 assume !(1 == ~n); 29224#L15 call #t~ret4 := fibo2(~n - 1);< 29225#$Ultimate##0 ~n := #in~n; 29242#L20 assume !(~n < 1); 29239#L22 assume !(1 == ~n); 29235#L25 call #t~ret6 := fibo1(~n - 1);< 29236#$Ultimate##0 ~n := #in~n; 29254#L10 assume !(~n < 1); 29252#L12 assume !(1 == ~n); 29248#L15 call #t~ret4 := fibo2(~n - 1);< 29249#$Ultimate##0 ~n := #in~n; 29255#L20 assume !(~n < 1); 29253#L22 assume 1 == ~n;#res := 1; 29251#fibo2FINAL assume true; 29247#fibo2EXIT >#52#return; 29244#L15-1 call #t~ret5 := fibo2(~n - 2);< 29245#$Ultimate##0 ~n := #in~n; 29250#L20 assume ~n < 1;#res := 0; 29246#fibo2FINAL assume true; 29243#fibo2EXIT >#54#return; 29241#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 29238#fibo1FINAL assume true; 29234#fibo1EXIT >#48#return; 29231#L25-1 call #t~ret7 := fibo1(~n - 2);< 29232#$Ultimate##0 ~n := #in~n; 29240#L10 assume !(~n < 1); 29237#L12 assume 1 == ~n;#res := 1; 29233#fibo1FINAL assume true; 29230#fibo1EXIT >#50#return; 29228#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 29226#fibo2FINAL assume true; 29223#fibo2EXIT >#52#return; 29213#L15-1 call #t~ret5 := fibo2(~n - 2);< 29222#$Ultimate##0 ~n := #in~n; 29477#L20 assume !(~n < 1); 29476#L22 assume !(1 == ~n); 29290#L25 call #t~ret6 := fibo1(~n - 1);< 29475#$Ultimate##0 ~n := #in~n; 29498#L10 assume !(~n < 1); 29494#L12 assume !(1 == ~n); 29054#L15 call #t~ret4 := fibo2(~n - 1);< 29490#$Ultimate##0 ~n := #in~n; 29501#L20 assume !(~n < 1); 29051#L22 assume !(1 == ~n); 29055#L25 call #t~ret6 := fibo1(~n - 1);< 29633#$Ultimate##0 ~n := #in~n; 29632#L10 assume !(~n < 1); 29631#L12 assume !(1 == ~n); 29077#L15 [2023-11-29 02:04:51,314 INFO L750 eck$LassoCheckResult]: Loop: 29077#L15 call #t~ret4 := fibo2(~n - 1);< 29622#$Ultimate##0 ~n := #in~n; 29623#L20 assume !(~n < 1); 29646#L22 assume !(1 == ~n); 29624#L25 call #t~ret6 := fibo1(~n - 1);< 29633#$Ultimate##0 ~n := #in~n; 29632#L10 assume !(~n < 1); 29631#L12 assume !(1 == ~n); 29077#L15 [2023-11-29 02:04:51,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:51,315 INFO L85 PathProgramCache]: Analyzing trace with hash 265386094, now seen corresponding path program 2 times [2023-11-29 02:04:51,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:51,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289449154] [2023-11-29 02:04:51,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:51,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:51,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 02:04:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:51,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:51,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 02:04:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:51,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-29 02:04:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:51,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 02:04:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:51,586 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 92 proven. 39 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 02:04:51,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:51,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289449154] [2023-11-29 02:04:51,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289449154] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:51,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467649480] [2023-11-29 02:04:51,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:04:51,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:51,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:51,588 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:51,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 02:04:51,669 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:04:51,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:04:51,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 02:04:51,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 92 proven. 39 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 02:04:51,757 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:51,994 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 92 proven. 39 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 02:04:51,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467649480] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:51,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:04:51,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 19] total 20 [2023-11-29 02:04:51,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790372325] [2023-11-29 02:04:51,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:51,995 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-29 02:04:51,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:51,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1544065082, now seen corresponding path program 4 times [2023-11-29 02:04:51,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:51,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719163793] [2023-11-29 02:04:51,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:51,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:52,000 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:04:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:04:52,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:04:52,124 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:52,124 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:52,124 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:52,124 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:52,124 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 02:04:52,124 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:52,124 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:52,124 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:52,124 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration10_Loop [2023-11-29 02:04:52,124 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:52,124 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:52,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:52,133 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:52,134 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:52,136 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:52,137 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:52,138 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:52,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:52,141 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:52,187 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:52,187 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 02:04:52,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:52,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:52,188 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:52,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2023-11-29 02:04:52,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 02:04:52,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:52,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2023-11-29 02:04:52,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:52,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:52,217 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:52,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2023-11-29 02:04:52,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 02:04:52,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 02:04:54,628 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 02:04:54,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:54,632 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 02:04:54,632 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 02:04:54,632 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 02:04:54,632 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 02:04:54,632 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 02:04:54,632 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:54,632 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 02:04:54,632 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 02:04:54,632 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_8-2.c_Iteration10_Loop [2023-11-29 02:04:54,632 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 02:04:54,632 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 02:04:54,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:54,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:54,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:54,649 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:54,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:54,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:54,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:54,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 02:04:54,720 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 02:04:54,720 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 02:04:54,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:54,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:54,721 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:54,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2023-11-29 02:04:54,724 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 [2023-11-29 02:04:54,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 02:04:54,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 02:04:54,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 02:04:54,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 02:04:54,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 02:04:54,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 02:04:54,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 02:04:54,739 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 02:04:54,743 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 02:04:54,743 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 02:04:54,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:04:54,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:54,744 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:04:54,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2023-11-29 02:04:54,746 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 02:04:54,746 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 02:04:54,746 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 02:04:54,747 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_~n) = 1*fibo1_~n Supporting invariants [] [2023-11-29 02:04:54,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:54,750 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 02:04:54,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:54,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 02:04:54,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:55,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:04:55,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:55,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:55,180 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 [2023-11-29 02:04:55,180 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 639 states and 809 transitions. cyclomatic complexity: 176 Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:55,277 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 639 states and 809 transitions. cyclomatic complexity: 176. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 670 states and 840 transitions. Complement of second has 19 states. [2023-11-29 02:04:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-29 02:04:55,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:55,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 20 transitions. [2023-11-29 02:04:55,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 20 transitions. Stem has 69 letters. Loop has 8 letters. [2023-11-29 02:04:55,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:55,279 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 02:04:55,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:55,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 02:04:55,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:55,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:04:55,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:55,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:55,706 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 [2023-11-29 02:04:55,707 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 639 states and 809 transitions. cyclomatic complexity: 176 Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:55,819 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 639 states and 809 transitions. cyclomatic complexity: 176. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 670 states and 840 transitions. Complement of second has 21 states. [2023-11-29 02:04:55,820 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 [2023-11-29 02:04:55,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:55,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 19 transitions. [2023-11-29 02:04:55,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 19 transitions. Stem has 69 letters. Loop has 8 letters. [2023-11-29 02:04:55,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:55,821 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 02:04:55,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:55,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2023-11-29 02:04:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:55,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 02:04:55,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:56,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:04:56,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:04:56,325 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 [2023-11-29 02:04:56,325 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 639 states and 809 transitions. cyclomatic complexity: 176 Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:56,485 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 639 states and 809 transitions. cyclomatic complexity: 176. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 1252 states and 1531 transitions. Complement of second has 33 states. [2023-11-29 02:04:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-29 02:04:56,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:56,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 43 transitions. [2023-11-29 02:04:56,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 69 letters. Loop has 8 letters. [2023-11-29 02:04:56,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:56,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 77 letters. Loop has 8 letters. [2023-11-29 02:04:56,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:56,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 69 letters. Loop has 16 letters. [2023-11-29 02:04:56,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 02:04:56,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1252 states and 1531 transitions. [2023-11-29 02:04:56,504 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 02:04:56,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1252 states to 0 states and 0 transitions. [2023-11-29 02:04:56,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 02:04:56,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 02:04:56,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 02:04:56,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:04:56,505 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:04:56,505 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:04:56,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:56,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 02:04:56,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:04:56,506 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 20 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 12 states have internal predecessors, (46), 10 states have call successors, (15), 10 states have call predecessors, (15), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 02:04:56,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:56,506 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-29 02:04:56,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-29 02:04:56,506 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 02:04:56,507 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 02:04:56,507 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 02:04:56,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 02:04:56,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 02:04:56,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:04:56,507 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:04:56,507 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:04:56,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:04:56,508 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:04:56,508 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-29 02:04:56,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:04:56,508 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 02:04:56,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 02:04:56,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 02:04:56 BoogieIcfgContainer [2023-11-29 02:04:56,517 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 02:04:56,517 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:04:56,517 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:04:56,518 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:04:56,518 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:04:26" (3/4) ... [2023-11-29 02:04:56,520 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 02:04:56,521 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:04:56,522 INFO L158 Benchmark]: Toolchain (without parser) took 30974.00ms. Allocated memory was 182.5MB in the beginning and 383.8MB in the end (delta: 201.3MB). Free memory was 146.2MB in the beginning and 273.4MB in the end (delta: -127.2MB). Peak memory consumption was 74.3MB. Max. memory is 16.1GB. [2023-11-29 02:04:56,522 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:04:56,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.01ms. Allocated memory is still 182.5MB. Free memory was 145.6MB in the beginning and 149.3MB in the end (delta: -3.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 02:04:56,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.46ms. Allocated memory is still 182.5MB. Free memory was 149.2MB in the beginning and 147.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:04:56,523 INFO L158 Benchmark]: Boogie Preprocessor took 34.11ms. Allocated memory is still 182.5MB. Free memory was 147.8MB in the beginning and 145.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:04:56,524 INFO L158 Benchmark]: RCFGBuilder took 255.67ms. Allocated memory is still 182.5MB. Free memory was 145.8MB in the beginning and 136.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:04:56,524 INFO L158 Benchmark]: BuchiAutomizer took 30352.70ms. Allocated memory was 182.5MB in the beginning and 383.8MB in the end (delta: 201.3MB). Free memory was 136.0MB in the beginning and 274.5MB in the end (delta: -138.5MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. [2023-11-29 02:04:56,525 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 383.8MB. Free memory is still 273.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:04:56,527 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.01ms. Allocated memory is still 182.5MB. Free memory was 145.6MB in the beginning and 149.3MB in the end (delta: -3.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.46ms. Allocated memory is still 182.5MB. Free memory was 149.2MB in the beginning and 147.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.11ms. Allocated memory is still 182.5MB. Free memory was 147.8MB in the beginning and 145.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 255.67ms. Allocated memory is still 182.5MB. Free memory was 145.8MB in the beginning and 136.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 30352.70ms. Allocated memory was 182.5MB in the beginning and 383.8MB in the end (delta: 201.3MB). Free memory was 136.0MB in the beginning and 274.5MB in the end (delta: -138.5MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 383.8MB. Free memory is still 273.4MB. 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 16 terminating modules (9 trivial, 3 deterministic, 4 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 7 locations. One deterministic module has affine ranking function n and consists of 12 locations. One deterministic module has affine ranking function n and consists of 13 locations. One nondeterministic module has affine ranking function \old(n) and consists of 8 locations. One nondeterministic module has affine ranking function n and consists of 12 locations. One nondeterministic module has affine ranking function \old(n) and consists of 8 locations. One nondeterministic module has affine ranking function n and consists of 8 locations. 9 modules have a trivial ranking function, the largest among these consists of 26 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 30.2s and 11 iterations. TraceHistogramMax:12. Analysis of lassos took 15.3s. Construction of modules took 3.1s. Büchi inclusion checks took 11.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 14. Automata minimization 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 727 StatesRemovedByMinimization, 14 NontrivialMinimizations. Non-live state removal took 0.3s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 4, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/19 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1424 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1379 mSDsluCounter, 2522 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1982 mSDsCounter, 820 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4215 IncrementalHoareTripleChecker+Invalid, 5035 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 820 mSolverCounterUnsat, 540 mSDtfsCounter, 4215 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI3 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp81 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf92 smp74 dnf100 smp100 tf113 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 34 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-29 02:04:56,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:56,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:56,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 02:04:57,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 02:04:57,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:57,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 02:04:57,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 02:04:57,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:58,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:58,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 02:04:58,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53e9ce-dec9-4af4-8e9c-6c3d288142c5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE