./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU --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 22d9a6832a4080412e38f5d573b63985f3b10b3c2009b6559595c7c0bbda414f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:19:21,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:19:22,042 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:19:22,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:19:22,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:19:22,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:19:22,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:19:22,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:19:22,082 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:19:22,082 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:19:22,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:19:22,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:19:22,084 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:19:22,084 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:19:22,085 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:19:22,085 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:19:22,086 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:19:22,086 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:19:22,087 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:19:22,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:19:22,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:19:22,088 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:19:22,088 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:19:22,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:19:22,089 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:19:22,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:19:22,090 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:19:22,090 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:19:22,090 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:19:22,091 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:19:22,091 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:19:22,091 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:19:22,092 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:19:22,096 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:19:22,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:19:22,106 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:19:22,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:19:22,107 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:19:22,108 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:19:22,109 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_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22d9a6832a4080412e38f5d573b63985f3b10b3c2009b6559595c7c0bbda414f [2024-10-31 22:19:22,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:19:22,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:19:22,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:19:22,444 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:19:22,445 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:19:22,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/recursive-simple/fibo_2calls_4-2.c Unable to find full path for "g++" [2024-10-31 22:19:24,481 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:19:24,649 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:19:24,649 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/sv-benchmarks/c/recursive-simple/fibo_2calls_4-2.c [2024-10-31 22:19:24,656 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/data/e368cc6c7/d182ecb4131547478e033003e47210fc/FLAG531f578de [2024-10-31 22:19:24,668 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/data/e368cc6c7/d182ecb4131547478e033003e47210fc [2024-10-31 22:19:24,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:19:24,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:19:24,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:24,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:19:24,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:19:24,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab7093a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24, skipping insertion in model container [2024-10-31 22:19:24,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,701 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:19:24,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:24,901 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:19:24,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:24,933 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:19:24,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24 WrapperNode [2024-10-31 22:19:24,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:24,934 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:24,934 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:19:24,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:19:24,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,946 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,962 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20 [2024-10-31 22:19:24,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:24,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:19:24,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:19:24,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:19:24,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,976 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,988 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]. [2024-10-31 22:19:24,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,989 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,992 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:24,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:19:24,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:19:24,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:19:24,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:19:24,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (1/1) ... [2024-10-31 22:19:25,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:25,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:25,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:25,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:19:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:19:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:19:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-10-31 22:19:25,082 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-10-31 22:19:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-10-31 22:19:25,082 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-10-31 22:19:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:19:25,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:19:25,166 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:19:25,169 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:19:25,347 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-31 22:19:25,348 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:19:25,359 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:19:25,360 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:19:25,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:25 BoogieIcfgContainer [2024-10-31 22:19:25,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:19:25,361 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:19:25,361 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:19:25,365 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:19:25,366 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:19:25,366 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:19:24" (1/3) ... [2024-10-31 22:19:25,367 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@466b2d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:19:25, skipping insertion in model container [2024-10-31 22:19:25,367 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:19:25,367 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:24" (2/3) ... [2024-10-31 22:19:25,367 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@466b2d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:19:25, skipping insertion in model container [2024-10-31 22:19:25,367 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:19:25,368 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:25" (3/3) ... [2024-10-31 22:19:25,369 INFO L332 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_4-2.c [2024-10-31 22:19:25,424 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:19:25,425 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:19:25,425 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:19:25,425 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:19:25,425 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:19:25,425 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:19:25,425 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:19:25,426 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:19:25,429 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) [2024-10-31 22:19:25,446 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-10-31 22:19:25,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:19:25,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:19:25,452 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:19:25,452 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:25,452 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:19:25,452 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) [2024-10-31 22:19:25,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-10-31 22:19:25,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:19:25,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:19:25,456 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:19:25,456 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:25,462 INFO L745 eck$LassoCheckResult]: Stem: 25#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 13#L39true call main_#t~ret8#1 := fibo1(main_~x~0#1);< 18#$Ultimate##0true [2024-10-31 22:19:25,462 INFO L747 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 [2024-10-31 22:19:25,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:25,468 INFO L85 PathProgramCache]: Analyzing trace with hash 29898, now seen corresponding path program 1 times [2024-10-31 22:19:25,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:25,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047930765] [2024-10-31 22:19:25,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:25,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:25,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:25,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:19:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:25,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:19:25,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:25,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1206117480, now seen corresponding path program 1 times [2024-10-31 22:19:25,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:25,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064901701] [2024-10-31 22:19:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:25,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:25,626 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:19:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:25,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:19:25,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:25,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1276411855, now seen corresponding path program 1 times [2024-10-31 22:19:25,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:25,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625587437] [2024-10-31 22:19:25,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:25,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:25,657 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:19:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:25,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:19:26,001 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:19:26,002 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:19:26,002 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:19:26,003 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:19:26,003 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:19:26,003 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,003 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:19:26,003 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:19:26,004 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration1_Loop [2024-10-31 22:19:26,004 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:19:26,004 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:19:26,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,057 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,150 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:19:26,151 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:19:26,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,156 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:19:26,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:26,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:26,181 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:26,182 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:26,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:19:26,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:19:26,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:26,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:26,227 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:26,228 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:26,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 22:19:26,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:19:26,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:26,253 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:26,270 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:26,270 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:26,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:26,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,292 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:19:26,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:26,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:26,314 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:26,314 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:26,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-31 22:19:26,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,336 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:19:26,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:26,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:26,360 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:26,361 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:26,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:26,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,379 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:19:26,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:26,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:26,401 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:26,401 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:26,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:19:26,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,424 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:19:26,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:26,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:26,449 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:26,449 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:26,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 22:19:26,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,472 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:19:26,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:26,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:26,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:19:26,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,536 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:19:26,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:19:26,541 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:26,611 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:19:26,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:26,614 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:19:26,614 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:19:26,614 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:19:26,614 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:19:26,615 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:19:26,615 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,615 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:19:26,615 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:19:26,615 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration1_Loop [2024-10-31 22:19:26,615 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:19:26,615 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:19:26,616 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,622 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,629 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,637 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,640 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,658 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:26,735 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:19:26,742 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:19:26,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,745 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:19:26,749 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 [2024-10-31 22:19:26,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:26,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:26,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:26,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:26,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:26,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:26,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:26,771 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:26,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:26,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,792 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:19:26,795 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 [2024-10-31 22:19:26,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:26,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:26,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:26,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:26,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:26,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:26,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:26,816 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:26,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:26,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,836 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:19:26,840 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 [2024-10-31 22:19:26,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:26,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:26,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:26,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:26,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:26,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:26,855 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:26,860 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:26,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:19:26,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,882 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,886 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 [2024-10-31 22:19:26,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:19:26,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:26,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:26,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:26,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:26,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:26,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:26,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:26,904 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:26,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:19:26,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,921 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:19:26,923 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:19:26,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:26,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:26,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:26,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:26,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:26,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:26,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:26,936 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:26,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:26,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,950 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:19:26,952 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 [2024-10-31 22:19:26,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:26,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:26,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:26,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:26,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:26,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:26,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:26,968 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:19:26,974 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:19:26,974 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:19:26,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:26,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:26,988 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:26,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:19:26,994 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:19:26,995 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:19:26,995 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:19:26,997 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2024-10-31 22:19:27,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-31 22:19:27,019 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:19:27,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:27,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:19:27,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:27,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:19:27,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:27,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:27,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:27,314 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 [2024-10-31 22:19:27,316 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) [2024-10-31 22:19:27,526 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 77 states and 107 transitions. Complement of second has 28 states. [2024-10-31 22:19:27,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2024-10-31 22:19:27,534 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) [2024-10-31 22:19:27,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 19 transitions. [2024-10-31 22:19:27,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 3 letters. Loop has 8 letters. [2024-10-31 22:19:27,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:27,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2024-10-31 22:19:27,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:27,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 3 letters. Loop has 16 letters. [2024-10-31 22:19:27,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:27,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 107 transitions. [2024-10-31 22:19:27,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-10-31 22:19:27,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 55 states and 75 transitions. [2024-10-31 22:19:27,564 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2024-10-31 22:19:27,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-10-31 22:19:27,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 75 transitions. [2024-10-31 22:19:27,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:19:27,566 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 75 transitions. [2024-10-31 22:19:27,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 75 transitions. [2024-10-31 22:19:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2024-10-31 22:19:27,603 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) [2024-10-31 22:19:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2024-10-31 22:19:27,605 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-10-31 22:19:27,605 INFO L425 stractBuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-10-31 22:19:27,606 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:19:27,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 72 transitions. [2024-10-31 22:19:27,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-10-31 22:19:27,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:19:27,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:19:27,609 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:27,609 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:27,610 INFO L745 eck$LassoCheckResult]: Stem: 232#$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); 219#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 := 4; 214#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 213#$Ultimate##0 ~n := #in~n; 215#L10 assume !(~n < 1); 225#L12 assume !(1 == ~n); 208#L15 call #t~ret4 := fibo2(~n - 1);< 230#$Ultimate##0 ~n := #in~n; 235#L20 assume !(~n < 1); 236#L22 assume !(1 == ~n); 200#L25 call #t~ret6 := fibo1(~n - 1);< 216#$Ultimate##0 ~n := #in~n; 217#L10 assume ~n < 1;#res := 0; 205#fibo1FINAL assume true; 206#fibo1EXIT >#48#return; 207#L25-1 [2024-10-31 22:19:27,610 INFO L747 eck$LassoCheckResult]: Loop: 207#L25-1 call #t~ret7 := fibo1(~n - 2);< 212#$Ultimate##0 ~n := #in~n; 237#L10 assume !(~n < 1); 238#L12 assume !(1 == ~n); 210#L15 call #t~ret4 := fibo2(~n - 1);< 241#$Ultimate##0 ~n := #in~n; 240#L20 assume !(~n < 1); 239#L22 assume !(1 == ~n); 220#L25 call #t~ret6 := fibo1(~n - 1);< 212#$Ultimate##0 ~n := #in~n; 237#L10 assume ~n < 1;#res := 0; 233#fibo1FINAL assume true; 234#fibo1EXIT >#48#return; 207#L25-1 [2024-10-31 22:19:27,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:27,610 INFO L85 PathProgramCache]: Analyzing trace with hash -722660232, now seen corresponding path program 1 times [2024-10-31 22:19:27,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:27,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952057585] [2024-10-31 22:19:27,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:27,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:27,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:19:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:19:27,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:27,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952057585] [2024-10-31 22:19:27,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952057585] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:27,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:27,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:19:27,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868159600] [2024-10-31 22:19:27,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:27,830 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:19:27,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:27,830 INFO L85 PathProgramCache]: Analyzing trace with hash -880179458, now seen corresponding path program 1 times [2024-10-31 22:19:27,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:27,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435499851] [2024-10-31 22:19:27,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:27,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:27,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:19:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:27,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:19:27,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:27,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435499851] [2024-10-31 22:19:27,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435499851] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:27,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:27,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:19:27,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092740118] [2024-10-31 22:19:27,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:27,945 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:19:27,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:27,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:19:27,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:19:27,950 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) [2024-10-31 22:19:28,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:28,039 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2024-10-31 22:19:28,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2024-10-31 22:19:28,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-10-31 22:19:28,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 60 states and 79 transitions. [2024-10-31 22:19:28,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-10-31 22:19:28,047 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-10-31 22:19:28,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 79 transitions. [2024-10-31 22:19:28,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:19:28,048 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-10-31 22:19:28,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 79 transitions. [2024-10-31 22:19:28,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-10-31 22:19:28,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 44 states have internal predecessors, (49), 12 states have call successors, (12), 8 states have call predecessors, (12), 9 states have return successors, (18), 7 states have call predecessors, (18), 10 states have call successors, (18) [2024-10-31 22:19:28,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 79 transitions. [2024-10-31 22:19:28,059 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-10-31 22:19:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:19:28,060 INFO L425 stractBuchiCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-10-31 22:19:28,060 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:19:28,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 79 transitions. [2024-10-31 22:19:28,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-10-31 22:19:28,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:19:28,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:19:28,062 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:28,062 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:28,063 INFO L745 eck$LassoCheckResult]: Stem: 370#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 352#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 353#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 354#$Ultimate##0 ~n := #in~n; 355#L10 assume !(~n < 1); 390#L12 assume !(1 == ~n); 346#L15 call #t~ret4 := fibo2(~n - 1);< 369#$Ultimate##0 ~n := #in~n; 376#L20 assume !(~n < 1); 377#L22 assume !(1 == ~n); 337#L25 call #t~ret6 := fibo1(~n - 1);< 356#$Ultimate##0 ~n := #in~n; 357#L10 assume !(~n < 1); 366#L12 assume 1 == ~n;#res := 1; 378#fibo1FINAL assume true; 374#fibo1EXIT >#48#return; 343#L25-1 [2024-10-31 22:19:28,063 INFO L747 eck$LassoCheckResult]: Loop: 343#L25-1 call #t~ret7 := fibo1(~n - 2);< 350#$Ultimate##0 ~n := #in~n; 379#L10 assume !(~n < 1); 360#L12 assume !(1 == ~n); 348#L15 call #t~ret4 := fibo2(~n - 1);< 383#$Ultimate##0 ~n := #in~n; 382#L20 assume !(~n < 1); 380#L22 assume !(1 == ~n); 344#L25 call #t~ret6 := fibo1(~n - 1);< 350#$Ultimate##0 ~n := #in~n; 379#L10 assume !(~n < 1); 360#L12 assume 1 == ~n;#res := 1; 361#fibo1FINAL assume true; 373#fibo1EXIT >#48#return; 343#L25-1 [2024-10-31 22:19:28,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:28,063 INFO L85 PathProgramCache]: Analyzing trace with hash -927605802, now seen corresponding path program 1 times [2024-10-31 22:19:28,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:28,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374741666] [2024-10-31 22:19:28,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:28,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:28,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:19:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:28,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:28,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374741666] [2024-10-31 22:19:28,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374741666] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:19:28,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156181565] [2024-10-31 22:19:28,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:28,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:19:28,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:28,266 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:19:28,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-31 22:19:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:28,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:19:28,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:28,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:28,376 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:19:28,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:28,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156181565] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:19:28,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:19:28,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 10 [2024-10-31 22:19:28,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623254417] [2024-10-31 22:19:28,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:19:28,549 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:19:28,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:28,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1515734512, now seen corresponding path program 1 times [2024-10-31 22:19:28,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:28,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002225436] [2024-10-31 22:19:28,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:28,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:28,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:19:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:28,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:19:28,922 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:19:28,922 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:19:28,922 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:19:28,922 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:19:28,923 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:19:28,923 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:28,923 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:19:28,923 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:19:28,923 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration3_Loop [2024-10-31 22:19:28,923 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:19:28,923 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:19:28,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:28,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:28,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:28,934 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:28,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:28,940 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:28,947 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:28,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:28,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:29,014 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:19:29,015 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:19:29,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,017 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:19:29,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:29,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:29,038 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:29,038 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=2} Honda state: {fibo2_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:29,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 22:19:29,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,059 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:19:29,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:29,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:29,079 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:29,080 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:29,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-10-31 22:19:29,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,100 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:19:29,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:29,108 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:29,124 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:29,124 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:29,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:29,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,144 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:19:29,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:29,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:29,159 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:29,160 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:29,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:29,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,180 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:19:29,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:29,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:29,193 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:29,193 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:29,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:29,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,207 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:19:29,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:29,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:29,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:29,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,235 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:19:29,237 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:19:29,237 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:29,254 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:19:29,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-31 22:19:29,266 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:19:29,266 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:19:29,267 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:19:29,267 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:19:29,267 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:19:29,267 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,267 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:19:29,267 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:19:29,267 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration3_Loop [2024-10-31 22:19:29,267 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:19:29,268 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:19:29,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:29,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:29,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:29,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:29,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:29,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:29,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:29,297 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:29,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:29,367 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:19:29,367 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:19:29,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,370 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:19:29,372 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 [2024-10-31 22:19:29,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:29,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:29,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:29,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:29,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:29,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:29,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:29,393 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:29,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-10-31 22:19:29,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,414 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:19:29,417 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 [2024-10-31 22:19:29,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:29,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:29,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:29,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:29,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:29,433 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:29,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:29,437 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:29,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:29,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,457 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:19:29,461 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 [2024-10-31 22:19:29,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:29,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:29,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:29,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:29,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:29,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:29,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:29,480 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:29,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:29,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,493 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:19:29,495 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 [2024-10-31 22:19:29,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:29,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:29,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:29,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:29,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:29,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:29,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:29,512 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:29,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-10-31 22:19:29,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,530 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:19:29,532 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 [2024-10-31 22:19:29,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:29,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:29,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:29,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:29,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:29,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:29,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:29,548 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:19:29,551 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:19:29,551 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:19:29,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:29,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,555 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:19:29,556 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:19:29,556 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:19:29,557 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:19:29,557 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_~n) = 1*fibo2_~n Supporting invariants [] [2024-10-31 22:19:29,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-10-31 22:19:29,575 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:19:29,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:29,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:19:29,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:29,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-31 22:19:29,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:29,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:29,943 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 [2024-10-31 22:19:29,943 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 79 transitions. cyclomatic complexity: 21 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) [2024-10-31 22:19:30,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-10-31 22:19:30,545 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 79 transitions. cyclomatic complexity: 21. 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 206 states and 282 transitions. Complement of second has 48 states. [2024-10-31 22:19:30,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 2 stem states 11 non-accepting loop states 1 accepting loop states [2024-10-31 22:19:30,546 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) [2024-10-31 22:19:30,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 79 transitions. [2024-10-31 22:19:30,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 79 transitions. Stem has 16 letters. Loop has 14 letters. [2024-10-31 22:19:30,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:30,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 79 transitions. Stem has 30 letters. Loop has 14 letters. [2024-10-31 22:19:30,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:30,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 79 transitions. Stem has 16 letters. Loop has 28 letters. [2024-10-31 22:19:30,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:30,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 282 transitions. [2024-10-31 22:19:30,560 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-10-31 22:19:30,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 182 states and 254 transitions. [2024-10-31 22:19:30,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 112 [2024-10-31 22:19:30,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2024-10-31 22:19:30,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 254 transitions. [2024-10-31 22:19:30,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:19:30,576 INFO L218 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2024-10-31 22:19:30,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 254 transitions. [2024-10-31 22:19:30,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 154. [2024-10-31 22:19:30,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 96 states have (on average 1.28125) internal successors, (123), 104 states have internal predecessors, (123), 35 states have call successors, (36), 19 states have call predecessors, (36), 23 states have return successors, (52), 30 states have call predecessors, (52), 33 states have call successors, (52) [2024-10-31 22:19:30,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 211 transitions. [2024-10-31 22:19:30,597 INFO L240 hiAutomatonCegarLoop]: Abstraction has 154 states and 211 transitions. [2024-10-31 22:19:30,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:30,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:19:30,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:19:30,599 INFO L87 Difference]: Start difference. First operand 154 states and 211 transitions. Second operand has 11 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:19:30,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:30,771 INFO L93 Difference]: Finished difference Result 183 states and 249 transitions. [2024-10-31 22:19:30,771 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 249 transitions. [2024-10-31 22:19:30,775 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-10-31 22:19:30,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 180 states and 245 transitions. [2024-10-31 22:19:30,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 117 [2024-10-31 22:19:30,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 117 [2024-10-31 22:19:30,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 180 states and 245 transitions. [2024-10-31 22:19:30,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:19:30,780 INFO L218 hiAutomatonCegarLoop]: Abstraction has 180 states and 245 transitions. [2024-10-31 22:19:30,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states and 245 transitions. [2024-10-31 22:19:30,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 165. [2024-10-31 22:19:30,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 102 states have (on average 1.2647058823529411) internal successors, (129), 111 states have internal predecessors, (129), 38 states have call successors, (40), 20 states have call predecessors, (40), 25 states have return successors, (58), 33 states have call predecessors, (58), 36 states have call successors, (58) [2024-10-31 22:19:30,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 227 transitions. [2024-10-31 22:19:30,802 INFO L240 hiAutomatonCegarLoop]: Abstraction has 165 states and 227 transitions. [2024-10-31 22:19:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:19:30,803 INFO L425 stractBuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2024-10-31 22:19:30,803 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:19:30,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 227 transitions. [2024-10-31 22:19:30,806 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-10-31 22:19:30,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:19:30,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:19:30,807 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:30,808 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:30,808 INFO L745 eck$LassoCheckResult]: Stem: 1277#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 1252#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 1253#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 1282#$Ultimate##0 ~n := #in~n; 1272#L10 assume !(~n < 1); 1269#L12 assume !(1 == ~n); 1243#L15 call #t~ret4 := fibo2(~n - 1);< 1275#$Ultimate##0 ~n := #in~n; 1376#L20 assume !(~n < 1); 1375#L22 assume !(1 == ~n); 1256#L25 call #t~ret6 := fibo1(~n - 1);< 1255#$Ultimate##0 ~n := #in~n; 1257#L10 assume !(~n < 1); 1318#L12 assume !(1 == ~n); 1319#L15 call #t~ret4 := fibo2(~n - 1);< 1327#$Ultimate##0 ~n := #in~n; 1331#L20 assume ~n < 1;#res := 0; 1330#fibo2FINAL assume true; 1326#fibo2EXIT >#52#return; 1323#L15-1 call #t~ret5 := fibo2(~n - 2);< 1324#$Ultimate##0 ~n := #in~n; 1328#L20 assume ~n < 1;#res := 0; 1325#fibo2FINAL assume true; 1322#fibo2EXIT >#54#return; 1320#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 1321#fibo1FINAL assume true; 1378#fibo1EXIT >#48#return; 1273#L25-1 call #t~ret7 := fibo1(~n - 2);< 1310#$Ultimate##0 ~n := #in~n; 1382#L10 assume ~n < 1;#res := 0; 1381#fibo1FINAL assume true; 1372#fibo1EXIT >#50#return; 1259#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 1260#fibo2FINAL assume true; 1270#fibo2EXIT >#52#return; 1220#L15-1 call #t~ret5 := fibo2(~n - 2);< 1334#$Ultimate##0 [2024-10-31 22:19:30,808 INFO L747 eck$LassoCheckResult]: Loop: 1334#$Ultimate##0 ~n := #in~n; 1333#L20 assume !(~n < 1); 1219#L22 assume !(1 == ~n); 1224#L25 call #t~ret6 := fibo1(~n - 1);< 1244#$Ultimate##0 ~n := #in~n; 1254#L10 assume !(~n < 1); 1267#L12 assume !(1 == ~n); 1222#L15 call #t~ret4 := fibo2(~n - 1);< 1334#$Ultimate##0 [2024-10-31 22:19:30,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:30,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1873386980, now seen corresponding path program 1 times [2024-10-31 22:19:30,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:30,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566513896] [2024-10-31 22:19:30,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:30,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:30,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-31 22:19:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:30,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:30,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:30,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:19:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:30,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:19:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:30,985 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 22:19:30,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:30,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566513896] [2024-10-31 22:19:30,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566513896] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:19:30,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635666682] [2024-10-31 22:19:30,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:30,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:19:30,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:30,992 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:19:30,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-10-31 22:19:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:31,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:19:31,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:31,186 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:19:31,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:19:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:19:31,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635666682] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:19:31,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:19:31,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 11] total 16 [2024-10-31 22:19:31,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998002463] [2024-10-31 22:19:31,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:19:31,648 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:19:31,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:31,649 INFO L85 PathProgramCache]: Analyzing trace with hash 996300776, now seen corresponding path program 2 times [2024-10-31 22:19:31,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:31,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434921055] [2024-10-31 22:19:31,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:31,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:31,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:19:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:31,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:19:31,773 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:19:31,773 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:19:31,773 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:19:31,774 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:19:31,774 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:19:31,774 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:31,774 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:19:31,774 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:19:31,774 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration4_Loop [2024-10-31 22:19:31,774 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:19:31,774 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:19:31,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:31,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:31,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:31,785 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:31,788 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:31,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:31,792 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:31,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:31,869 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:19:31,869 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:19:31,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:31,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:31,879 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:31,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:19:31,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:31,887 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:31,904 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:31,904 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:31,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:31,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:31,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:31,924 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:31,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:19:31,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:31,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:31,947 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:31,947 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:31,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:31,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:31,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:31,967 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:31,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:19:31,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:31,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:31,987 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:31,987 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:32,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:32,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,006 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 22:19:32,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:32,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:32,033 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:32,033 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:32,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:32,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,053 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 22:19:32,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:32,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:32,074 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:32,074 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:32,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-10-31 22:19:32,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,094 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-31 22:19:32,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:32,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:32,113 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:32,114 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:32,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:32,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,134 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-31 22:19:32,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:32,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:32,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-10-31 22:19:32,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,173 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-31 22:19:32,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:19:32,175 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:32,207 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:19:32,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-10-31 22:19:32,210 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:19:32,210 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:19:32,210 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:19:32,210 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:19:32,210 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:19:32,210 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,210 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:19:32,211 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:19:32,211 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration4_Loop [2024-10-31 22:19:32,211 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:19:32,211 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:19:32,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:32,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:32,218 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:32,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:32,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:32,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:32,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:32,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:32,314 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:19:32,316 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:19:32,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,318 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-31 22:19:32,322 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 [2024-10-31 22:19:32,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:32,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:32,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:32,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:32,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:32,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:32,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:32,340 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:32,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:32,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,363 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-31 22:19:32,366 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 [2024-10-31 22:19:32,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:32,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:32,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:32,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:32,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:32,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:32,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:32,384 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:32,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-10-31 22:19:32,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,426 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-31 22:19:32,430 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 [2024-10-31 22:19:32,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:32,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:32,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:32,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:32,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:32,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:32,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:32,447 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:32,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:32,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,469 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-10-31 22:19:32,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:19:32,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:32,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:32,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:32,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:32,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:32,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:32,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:32,500 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:32,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-10-31 22:19:32,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,515 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-10-31 22:19:32,518 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 [2024-10-31 22:19:32,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:32,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:32,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:32,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:32,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:32,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:32,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:32,535 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:32,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:32,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,557 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-10-31 22:19:32,559 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 [2024-10-31 22:19:32,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:32,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:32,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:32,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:32,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:32,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:32,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:32,576 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:32,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:32,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,598 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-10-31 22:19:32,600 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 [2024-10-31 22:19:32,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:32,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:32,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:32,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:32,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:32,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:32,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:32,621 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:19:32,625 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:19:32,626 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:19:32,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:32,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:32,628 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:32,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-10-31 22:19:32,630 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:19:32,631 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:19:32,631 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:19:32,631 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2024-10-31 22:19:32,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:32,650 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:19:32,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:32,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:19:32,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:33,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-10-31 22:19:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:33,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:19:33,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:33,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:33,272 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 [2024-10-31 22:19:33,273 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67 Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:19:33,491 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 658 states and 934 transitions. Complement of second has 30 states. [2024-10-31 22:19:33,492 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 [2024-10-31 22:19:33,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:19:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2024-10-31 22:19:33,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 36 letters. Loop has 8 letters. [2024-10-31 22:19:33,493 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:33,493 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:19:33,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:33,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:19:33,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:33,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:19:33,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:33,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:33,969 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 [2024-10-31 22:19:33,969 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67 Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:19:34,174 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 658 states and 934 transitions. Complement of second has 30 states. [2024-10-31 22:19:34,176 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 [2024-10-31 22:19:34,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:19:34,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2024-10-31 22:19:34,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 36 letters. Loop has 8 letters. [2024-10-31 22:19:34,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:34,177 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:19:34,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:19:34,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:19:34,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:34,723 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 [2024-10-31 22:19:34,723 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67 Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:19:34,933 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 538 states and 752 transitions. Complement of second has 29 states. [2024-10-31 22:19:34,934 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 [2024-10-31 22:19:34,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:19:34,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2024-10-31 22:19:34,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 36 letters. Loop has 8 letters. [2024-10-31 22:19:34,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:34,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 44 letters. Loop has 8 letters. [2024-10-31 22:19:34,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:34,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 36 letters. Loop has 16 letters. [2024-10-31 22:19:34,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:34,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 538 states and 752 transitions. [2024-10-31 22:19:34,945 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2024-10-31 22:19:34,953 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 538 states to 437 states and 632 transitions. [2024-10-31 22:19:34,953 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 187 [2024-10-31 22:19:34,954 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 218 [2024-10-31 22:19:34,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 437 states and 632 transitions. [2024-10-31 22:19:34,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:19:34,955 INFO L218 hiAutomatonCegarLoop]: Abstraction has 437 states and 632 transitions. [2024-10-31 22:19:34,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states and 632 transitions. [2024-10-31 22:19:34,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 366. [2024-10-31 22:19:34,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 244 states have (on average 1.2868852459016393) internal successors, (314), 265 states have internal predecessors, (314), 71 states have call successors, (74), 55 states have call predecessors, (74), 51 states have return successors, (118), 45 states have call predecessors, (118), 69 states have call successors, (118) [2024-10-31 22:19:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 506 transitions. [2024-10-31 22:19:34,984 INFO L240 hiAutomatonCegarLoop]: Abstraction has 366 states and 506 transitions. [2024-10-31 22:19:34,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:34,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-31 22:19:34,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:19:34,986 INFO L87 Difference]: Start difference. First operand 366 states and 506 transitions. Second operand has 16 states, 14 states have (on average 3.142857142857143) internal successors, (44), 15 states have internal predecessors, (44), 11 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (12), 3 states have call predecessors, (12), 10 states have call successors, (12) [2024-10-31 22:19:35,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:35,323 INFO L93 Difference]: Finished difference Result 437 states and 627 transitions. [2024-10-31 22:19:35,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 437 states and 627 transitions. [2024-10-31 22:19:35,330 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2024-10-31 22:19:35,336 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 437 states to 398 states and 583 transitions. [2024-10-31 22:19:35,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 216 [2024-10-31 22:19:35,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 217 [2024-10-31 22:19:35,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 583 transitions. [2024-10-31 22:19:35,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:19:35,338 INFO L218 hiAutomatonCegarLoop]: Abstraction has 398 states and 583 transitions. [2024-10-31 22:19:35,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 583 transitions. [2024-10-31 22:19:35,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 361. [2024-10-31 22:19:35,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 234 states have (on average 1.2393162393162394) internal successors, (290), 263 states have internal predecessors, (290), 74 states have call successors, (77), 50 states have call predecessors, (77), 53 states have return successors, (138), 47 states have call predecessors, (138), 72 states have call successors, (138) [2024-10-31 22:19:35,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 505 transitions. [2024-10-31 22:19:35,374 INFO L240 hiAutomatonCegarLoop]: Abstraction has 361 states and 505 transitions. [2024-10-31 22:19:35,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:19:35,375 INFO L425 stractBuchiCegarLoop]: Abstraction has 361 states and 505 transitions. [2024-10-31 22:19:35,376 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:19:35,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 505 transitions. [2024-10-31 22:19:35,380 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2024-10-31 22:19:35,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:19:35,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:19:35,385 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:35,385 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-31 22:19:35,385 INFO L745 eck$LassoCheckResult]: Stem: 4958#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 4917#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 4918#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 4960#$Ultimate##0 ~n := #in~n; 5020#L10 assume !(~n < 1); 5019#L12 assume !(1 == ~n); 5007#L15 call #t~ret4 := fibo2(~n - 1);< 5017#$Ultimate##0 ~n := #in~n; 5016#L20 assume !(~n < 1); 5013#L22 assume !(1 == ~n); 4927#L25 call #t~ret6 := fibo1(~n - 1);< 5008#$Ultimate##0 ~n := #in~n; 5014#L10 assume !(~n < 1); 5100#L12 assume !(1 == ~n); 5088#L15 call #t~ret4 := fibo2(~n - 1);< 5113#$Ultimate##0 ~n := #in~n; 5116#L20 assume !(~n < 1); 5115#L22 assume 1 == ~n;#res := 1; 5114#fibo2FINAL assume true; 5112#fibo2EXIT >#52#return; 4926#L15-1 call #t~ret5 := fibo2(~n - 2);< 4930#$Ultimate##0 ~n := #in~n; 5107#L20 assume ~n < 1;#res := 0; 5104#fibo2FINAL assume true; 5101#fibo2EXIT >#54#return; 5099#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5097#fibo1FINAL assume true; 5095#fibo1EXIT >#48#return; 5080#L25-1 call #t~ret7 := fibo1(~n - 2);< 5092#$Ultimate##0 ~n := #in~n; 5178#L10 assume ~n < 1;#res := 0; 5174#fibo1FINAL assume true; 5131#fibo1EXIT >#50#return; 5130#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 5129#fibo2FINAL assume true; 5128#fibo2EXIT >#52#return; 4889#L15-1 call #t~ret5 := fibo2(~n - 2);< 5082#$Ultimate##0 [2024-10-31 22:19:35,386 INFO L747 eck$LassoCheckResult]: Loop: 5082#$Ultimate##0 ~n := #in~n; 4899#L20 assume !(~n < 1); 4885#L22 assume !(1 == ~n); 4891#L25 call #t~ret6 := fibo1(~n - 1);< 5109#$Ultimate##0 ~n := #in~n; 5105#L10 assume !(~n < 1); 5106#L12 assume !(1 == ~n); 4890#L15 call #t~ret4 := fibo2(~n - 1);< 4897#$Ultimate##0 ~n := #in~n; 4899#L20 assume !(~n < 1); 4885#L22 assume !(1 == ~n); 4891#L25 call #t~ret6 := fibo1(~n - 1);< 5109#$Ultimate##0 ~n := #in~n; 5105#L10 assume !(~n < 1); 5106#L12 assume !(1 == ~n); 4890#L15 call #t~ret4 := fibo2(~n - 1);< 4897#$Ultimate##0 ~n := #in~n; 4898#L20 assume !(~n < 1); 5208#L22 assume 1 == ~n;#res := 1; 5150#fibo2FINAL assume true; 5148#fibo2EXIT >#52#return; 4886#L15-1 call #t~ret5 := fibo2(~n - 2);< 5082#$Ultimate##0 ~n := #in~n; 5083#L20 assume ~n < 1;#res := 0; 5207#fibo2FINAL assume true; 5145#fibo2EXIT >#54#return; 5123#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5141#fibo1FINAL assume true; 5138#fibo1EXIT >#48#return; 5134#L25-1 call #t~ret7 := fibo1(~n - 2);< 5140#$Ultimate##0 ~n := #in~n; 5159#L10 assume !(~n < 1); 5158#L12 assume !(1 == ~n); 5121#L15 call #t~ret4 := fibo2(~n - 1);< 5149#$Ultimate##0 ~n := #in~n; 5162#L20 assume !(~n < 1); 5160#L22 assume 1 == ~n;#res := 1; 5071#fibo2FINAL assume true; 5147#fibo2EXIT >#52#return; 4886#L15-1 call #t~ret5 := fibo2(~n - 2);< 5082#$Ultimate##0 ~n := #in~n; 5083#L20 assume ~n < 1;#res := 0; 5207#fibo2FINAL assume true; 5145#fibo2EXIT >#54#return; 5123#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5141#fibo1FINAL assume true; 5138#fibo1EXIT >#50#return; 5137#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 5173#fibo2FINAL assume true; 5120#fibo2EXIT >#52#return; 4886#L15-1 call #t~ret5 := fibo2(~n - 2);< 5082#$Ultimate##0 [2024-10-31 22:19:35,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:35,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1302122831, now seen corresponding path program 1 times [2024-10-31 22:19:35,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:35,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328205585] [2024-10-31 22:19:35,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:35,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:35,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-31 22:19:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:35,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:35,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:35,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:19:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:35,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:19:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:35,603 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 22:19:35,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:35,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328205585] [2024-10-31 22:19:35,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328205585] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:19:35,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427095007] [2024-10-31 22:19:35,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:35,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:19:35,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:35,621 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:19:35,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-10-31 22:19:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:35,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:19:35,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:35,745 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:19:35,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:19:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:19:35,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427095007] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:19:35,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:19:35,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 16 [2024-10-31 22:19:35,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862122890] [2024-10-31 22:19:35,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:19:35,977 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:19:35,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:35,977 INFO L85 PathProgramCache]: Analyzing trace with hash 592500779, now seen corresponding path program 1 times [2024-10-31 22:19:35,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:35,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72225998] [2024-10-31 22:19:35,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:35,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:36,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:19:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:36,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:36,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:36,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:19:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:36,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:19:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:36,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:36,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:19:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:36,286 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-31 22:19:36,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:36,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72225998] [2024-10-31 22:19:36,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72225998] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:19:36,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004241094] [2024-10-31 22:19:36,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:36,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:19:36,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:36,291 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:19:36,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-10-31 22:19:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:36,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:19:36,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:36,455 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-31 22:19:36,456 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:19:36,935 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-31 22:19:36,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004241094] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:19:36,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:19:36,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-10-31 22:19:36,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251054854] [2024-10-31 22:19:36,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:19:36,937 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:19:36,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:36,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-31 22:19:36,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:19:36,938 INFO L87 Difference]: Start difference. First operand 361 states and 505 transitions. cyclomatic complexity: 151 Second operand has 16 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 states have internal predecessors, (37), 8 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2024-10-31 22:19:37,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:37,181 INFO L93 Difference]: Finished difference Result 404 states and 595 transitions. [2024-10-31 22:19:37,181 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 404 states and 595 transitions. [2024-10-31 22:19:37,186 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2024-10-31 22:19:37,195 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 404 states to 404 states and 595 transitions. [2024-10-31 22:19:37,195 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 221 [2024-10-31 22:19:37,196 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 221 [2024-10-31 22:19:37,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 404 states and 595 transitions. [2024-10-31 22:19:37,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:19:37,196 INFO L218 hiAutomatonCegarLoop]: Abstraction has 404 states and 595 transitions. [2024-10-31 22:19:37,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states and 595 transitions. [2024-10-31 22:19:37,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 369. [2024-10-31 22:19:37,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 238 states have (on average 1.2352941176470589) internal successors, (294), 269 states have internal predecessors, (294), 75 states have call successors, (78), 50 states have call predecessors, (78), 56 states have return successors, (143), 49 states have call predecessors, (143), 73 states have call successors, (143) [2024-10-31 22:19:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 515 transitions. [2024-10-31 22:19:37,216 INFO L240 hiAutomatonCegarLoop]: Abstraction has 369 states and 515 transitions. [2024-10-31 22:19:37,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:19:37,217 INFO L425 stractBuchiCegarLoop]: Abstraction has 369 states and 515 transitions. [2024-10-31 22:19:37,217 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:19:37,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 369 states and 515 transitions. [2024-10-31 22:19:37,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2024-10-31 22:19:37,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:19:37,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:19:37,221 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:37,222 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:37,222 INFO L745 eck$LassoCheckResult]: Stem: 6437#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 6399#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 6400#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 6444#$Ultimate##0 ~n := #in~n; 6492#L10 assume !(~n < 1); 6491#L12 assume !(1 == ~n); 6476#L15 call #t~ret4 := fibo2(~n - 1);< 6489#$Ultimate##0 ~n := #in~n; 6488#L20 assume !(~n < 1); 6480#L22 assume !(1 == ~n); 6403#L25 call #t~ret6 := fibo1(~n - 1);< 6477#$Ultimate##0 ~n := #in~n; 6486#L10 assume !(~n < 1); 6582#L12 assume !(1 == ~n); 6553#L15 call #t~ret4 := fibo2(~n - 1);< 6584#$Ultimate##0 ~n := #in~n; 6590#L20 assume !(~n < 1); 6588#L22 assume 1 == ~n;#res := 1; 6586#fibo2FINAL assume true; 6583#fibo2EXIT >#52#return; 6401#L15-1 call #t~ret5 := fibo2(~n - 2);< 6405#$Ultimate##0 ~n := #in~n; 6592#L20 assume ~n < 1;#res := 0; 6591#fibo2FINAL assume true; 6589#fibo2EXIT >#54#return; 6587#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 6585#fibo1FINAL assume true; 6563#fibo1EXIT >#48#return; 6537#L25-1 call #t~ret7 := fibo1(~n - 2);< 6560#$Ultimate##0 ~n := #in~n; 6633#L10 assume !(~n < 1); 6632#L12 assume 1 == ~n;#res := 1; 6631#fibo1FINAL assume true; 6625#fibo1EXIT >#50#return; 6616#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 6623#fibo2FINAL assume true; 6622#fibo2EXIT >#52#return; 6432#L15-1 call #t~ret5 := fibo2(~n - 2);< 6559#$Ultimate##0 [2024-10-31 22:19:37,222 INFO L747 eck$LassoCheckResult]: Loop: 6559#$Ultimate##0 ~n := #in~n; 6428#L20 assume !(~n < 1); 6434#L22 assume !(1 == ~n); 6567#L25 call #t~ret6 := fibo1(~n - 1);< 6569#$Ultimate##0 ~n := #in~n; 6580#L10 assume !(~n < 1); 6576#L12 assume !(1 == ~n); 6430#L15 call #t~ret4 := fibo2(~n - 1);< 6612#$Ultimate##0 ~n := #in~n; 6630#L20 assume !(~n < 1); 6655#L22 assume 1 == ~n;#res := 1; 6648#fibo2FINAL assume true; 6640#fibo2EXIT >#52#return; 6431#L15-1 call #t~ret5 := fibo2(~n - 2);< 6559#$Ultimate##0 [2024-10-31 22:19:37,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:37,223 INFO L85 PathProgramCache]: Analyzing trace with hash -264197307, now seen corresponding path program 1 times [2024-10-31 22:19:37,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:37,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10172321] [2024-10-31 22:19:37,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:37,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:37,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:19:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:37,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:19:37,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:37,240 INFO L85 PathProgramCache]: Analyzing trace with hash -93894958, now seen corresponding path program 1 times [2024-10-31 22:19:37,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:37,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773643134] [2024-10-31 22:19:37,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:37,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:37,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:19:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:37,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:19:37,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:37,248 INFO L85 PathProgramCache]: Analyzing trace with hash -387388650, now seen corresponding path program 2 times [2024-10-31 22:19:37,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:37,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531716204] [2024-10-31 22:19:37,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:37,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:37,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-31 22:19:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:37,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:37,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:37,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:19:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:37,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:19:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:37,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-31 22:19:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:37,413 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 23 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-31 22:19:37,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:37,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531716204] [2024-10-31 22:19:37,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531716204] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:19:37,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724346097] [2024-10-31 22:19:37,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:19:37,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:19:37,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:37,416 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:19:37,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-10-31 22:19:37,480 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:19:37,481 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:19:37,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:19:37,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:37,546 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 22:19:37,547 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:19:37,708 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-31 22:19:37,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724346097] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:19:37,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:19:37,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 13 [2024-10-31 22:19:37,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912791367] [2024-10-31 22:19:37,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:19:37,850 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:19:37,850 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:19:37,850 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:19:37,851 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:19:37,851 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:19:37,851 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:37,851 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:19:37,851 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:19:37,851 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration6_Loop [2024-10-31 22:19:37,851 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:19:37,851 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:19:37,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:37,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:37,857 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:37,862 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:37,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:37,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:37,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:37,872 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:37,909 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:19:37,909 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:19:37,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:37,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:37,912 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:37,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-10-31 22:19:37,917 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:37,917 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:37,933 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:37,934 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:37,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-10-31 22:19:37,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:37,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:37,954 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:37,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-10-31 22:19:37,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:37,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:37,971 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:37,972 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:37,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:37,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:37,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:37,987 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:37,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-10-31 22:19:37,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:37,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:38,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-10-31 22:19:38,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:38,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:38,016 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:38,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-10-31 22:19:38,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:19:38,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:38,031 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:19:38,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2024-10-31 22:19:38,044 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:19:38,044 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:19:38,044 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:19:38,044 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:19:38,044 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:19:38,044 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:38,044 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:19:38,044 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:19:38,044 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration6_Loop [2024-10-31 22:19:38,044 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:19:38,044 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:19:38,045 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:38,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:38,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:38,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:38,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:38,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:38,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:38,066 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:38,109 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:19:38,109 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:19:38,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:38,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:38,111 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:38,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-10-31 22:19:38,119 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 [2024-10-31 22:19:38,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:38,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:38,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:38,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:38,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:38,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:38,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:38,144 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:38,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:38,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:38,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:38,166 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:38,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-10-31 22:19:38,168 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 [2024-10-31 22:19:38,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:38,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:38,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:38,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:38,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:38,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:38,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:38,185 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:38,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-10-31 22:19:38,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:38,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:38,207 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:38,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-10-31 22:19:38,210 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 [2024-10-31 22:19:38,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:38,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:38,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:38,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:38,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:38,226 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:38,226 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:38,229 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:19:38,234 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:19:38,234 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:19:38,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:38,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:38,237 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:38,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-10-31 22:19:38,239 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:19:38,239 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:19:38,240 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:19:38,240 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2024-10-31 22:19:38,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-10-31 22:19:38,259 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:19:38,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:38,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:19:38,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:38,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2024-10-31 22:19:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:38,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-31 22:19:38,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:38,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:38,889 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 [2024-10-31 22:19:38,890 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153 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, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 22:19:39,399 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153. 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, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 1260 states and 1729 transitions. Complement of second has 34 states. [2024-10-31 22:19:39,400 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 [2024-10-31 22:19:39,401 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, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 22:19:39,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 55 transitions. [2024-10-31 22:19:39,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 55 transitions. Stem has 38 letters. Loop has 14 letters. [2024-10-31 22:19:39,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:39,404 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:19:39,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:39,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:19:39,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:39,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-31 22:19:39,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:40,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:40,013 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 [2024-10-31 22:19:40,014 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153 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, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 22:19:40,501 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153. 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, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 1260 states and 1729 transitions. Complement of second has 34 states. [2024-10-31 22:19:40,501 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 [2024-10-31 22:19:40,503 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, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 22:19:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 55 transitions. [2024-10-31 22:19:40,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 55 transitions. Stem has 38 letters. Loop has 14 letters. [2024-10-31 22:19:40,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:40,503 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:19:40,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:40,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:19:40,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:40,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-31 22:19:40,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:41,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:41,011 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 [2024-10-31 22:19:41,011 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153 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, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 22:19:41,476 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153. 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, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 1083 states and 1467 transitions. Complement of second has 37 states. [2024-10-31 22:19:41,477 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 [2024-10-31 22:19:41,478 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, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 22:19:41,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 59 transitions. [2024-10-31 22:19:41,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 59 transitions. Stem has 38 letters. Loop has 14 letters. [2024-10-31 22:19:41,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:41,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 59 transitions. Stem has 52 letters. Loop has 14 letters. [2024-10-31 22:19:41,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:41,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 59 transitions. Stem has 38 letters. Loop has 28 letters. [2024-10-31 22:19:41,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:41,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1083 states and 1467 transitions. [2024-10-31 22:19:41,497 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2024-10-31 22:19:41,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1083 states to 648 states and 953 transitions. [2024-10-31 22:19:41,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2024-10-31 22:19:41,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2024-10-31 22:19:41,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 648 states and 953 transitions. [2024-10-31 22:19:41,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:19:41,507 INFO L218 hiAutomatonCegarLoop]: Abstraction has 648 states and 953 transitions. [2024-10-31 22:19:41,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states and 953 transitions. [2024-10-31 22:19:41,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 507. [2024-10-31 22:19:41,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 325 states have (on average 1.2307692307692308) internal successors, (400), 356 states have internal predecessors, (400), 106 states have call successors, (109), 68 states have call predecessors, (109), 76 states have return successors, (188), 82 states have call predecessors, (188), 104 states have call successors, (188) [2024-10-31 22:19:41,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 697 transitions. [2024-10-31 22:19:41,549 INFO L240 hiAutomatonCegarLoop]: Abstraction has 507 states and 697 transitions. [2024-10-31 22:19:41,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:41,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:19:41,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:19:41,550 INFO L87 Difference]: Start difference. First operand 507 states and 697 transitions. Second operand has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-31 22:19:41,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:41,805 INFO L93 Difference]: Finished difference Result 573 states and 792 transitions. [2024-10-31 22:19:41,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 573 states and 792 transitions. [2024-10-31 22:19:41,811 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2024-10-31 22:19:41,818 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 573 states to 535 states and 749 transitions. [2024-10-31 22:19:41,818 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2024-10-31 22:19:41,818 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2024-10-31 22:19:41,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 535 states and 749 transitions. [2024-10-31 22:19:41,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:19:41,819 INFO L218 hiAutomatonCegarLoop]: Abstraction has 535 states and 749 transitions. [2024-10-31 22:19:41,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states and 749 transitions. [2024-10-31 22:19:41,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 503. [2024-10-31 22:19:41,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 323 states have (on average 1.2321981424148607) internal successors, (398), 354 states have internal predecessors, (398), 105 states have call successors, (107), 68 states have call predecessors, (107), 75 states have return successors, (183), 80 states have call predecessors, (183), 101 states have call successors, (183) [2024-10-31 22:19:41,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 688 transitions. [2024-10-31 22:19:41,840 INFO L240 hiAutomatonCegarLoop]: Abstraction has 503 states and 688 transitions. [2024-10-31 22:19:41,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-31 22:19:41,841 INFO L425 stractBuchiCegarLoop]: Abstraction has 503 states and 688 transitions. [2024-10-31 22:19:41,841 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:19:41,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 503 states and 688 transitions. [2024-10-31 22:19:41,845 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2024-10-31 22:19:41,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:19:41,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:19:41,851 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:41,853 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-31 22:19:41,854 INFO L745 eck$LassoCheckResult]: Stem: 12546#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 12510#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 12511#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 12556#$Ultimate##0 ~n := #in~n; 12832#L10 assume !(~n < 1); 12830#L12 assume !(1 == ~n); 12635#L15 call #t~ret4 := fibo2(~n - 1);< 12824#$Ultimate##0 ~n := #in~n; 12821#L20 assume !(~n < 1); 12819#L22 assume !(1 == ~n); 12518#L25 call #t~ret6 := fibo1(~n - 1);< 12636#$Ultimate##0 ~n := #in~n; 12638#L10 assume !(~n < 1); 12782#L12 assume !(1 == ~n); 12573#L15 call #t~ret4 := fibo2(~n - 1);< 12653#$Ultimate##0 ~n := #in~n; 12833#L20 assume !(~n < 1); 12644#L22 assume !(1 == ~n); 12520#L25 call #t~ret6 := fibo1(~n - 1);< 12636#$Ultimate##0 ~n := #in~n; 12638#L10 assume !(~n < 1); 12782#L12 assume !(1 == ~n); 12573#L15 call #t~ret4 := fibo2(~n - 1);< 12653#$Ultimate##0 ~n := #in~n; 12833#L20 assume !(~n < 1); 12644#L22 assume 1 == ~n;#res := 1; 12645#fibo2FINAL assume true; 12687#fibo2EXIT >#52#return; 12577#L15-1 call #t~ret5 := fibo2(~n - 2);< 12656#$Ultimate##0 ~n := #in~n; 12679#L20 assume !(~n < 1); 12812#L22 assume !(1 == ~n); 12810#L25 call #t~ret6 := fibo1(~n - 1);< 12811#$Ultimate##0 ~n := #in~n; 12816#L10 assume !(~n < 1); 12814#L12 assume 1 == ~n;#res := 1; 12813#fibo1FINAL assume true; 12809#fibo1EXIT >#48#return; 12807#L25-1 call #t~ret7 := fibo1(~n - 2);< 12808#$Ultimate##0 ~n := #in~n; 12817#L10 assume ~n < 1;#res := 0; 12815#fibo1FINAL assume true; 12806#fibo1EXIT >#50#return; 12805#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 12804#fibo2FINAL assume true; 12640#fibo2EXIT >#54#return; 12639#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 12634#fibo1FINAL assume true; 12615#fibo1EXIT >#48#return; 12604#L25-1 call #t~ret7 := fibo1(~n - 2);< 12605#$Ultimate##0 ~n := #in~n; 12662#L10 assume !(~n < 1); 12659#L12 assume !(1 == ~n); 12579#L15 call #t~ret4 := fibo2(~n - 1);< 12651#$Ultimate##0 ~n := #in~n; 12694#L20 assume !(~n < 1); 12690#L22 assume 1 == ~n;#res := 1; 12657#fibo2FINAL assume true; 12648#fibo2EXIT >#52#return; 12472#L15-1 call #t~ret5 := fibo2(~n - 2);< 12643#$Ultimate##0 ~n := #in~n; 12534#L20 assume ~n < 1;#res := 0; 12473#fibo2FINAL assume true; 12527#fibo2EXIT >#54#return; 12639#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 12634#fibo1FINAL assume true; 12615#fibo1EXIT >#50#return; 12602#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 12572#fibo2FINAL assume true; 12583#fibo2EXIT >#52#return; 12472#L15-1 [2024-10-31 22:19:41,854 INFO L747 eck$LassoCheckResult]: Loop: 12472#L15-1 call #t~ret5 := fibo2(~n - 2);< 12643#$Ultimate##0 ~n := #in~n; 12758#L20 assume !(~n < 1); 12801#L22 assume !(1 == ~n); 12618#L25 call #t~ret6 := fibo1(~n - 1);< 12626#$Ultimate##0 ~n := #in~n; 12726#L10 assume !(~n < 1); 12705#L12 assume !(1 == ~n); 12580#L15 call #t~ret4 := fibo2(~n - 1);< 12650#$Ultimate##0 ~n := #in~n; 12758#L20 assume !(~n < 1); 12801#L22 assume !(1 == ~n); 12618#L25 call #t~ret6 := fibo1(~n - 1);< 12626#$Ultimate##0 ~n := #in~n; 12726#L10 assume !(~n < 1); 12705#L12 assume !(1 == ~n); 12580#L15 call #t~ret4 := fibo2(~n - 1);< 12650#$Ultimate##0 ~n := #in~n; 12756#L20 assume !(~n < 1); 12718#L22 assume 1 == ~n;#res := 1; 12716#fibo2FINAL assume true; 12714#fibo2EXIT >#52#return; 12512#L15-1 call #t~ret5 := fibo2(~n - 2);< 12642#$Ultimate##0 ~n := #in~n; 12803#L20 assume ~n < 1;#res := 0; 12947#fibo2FINAL assume true; 12700#fibo2EXIT >#54#return; 12639#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 12634#fibo1FINAL assume true; 12615#fibo1EXIT >#48#return; 12604#L25-1 call #t~ret7 := fibo1(~n - 2);< 12605#$Ultimate##0 ~n := #in~n; 12662#L10 assume !(~n < 1); 12659#L12 assume !(1 == ~n); 12579#L15 call #t~ret4 := fibo2(~n - 1);< 12651#$Ultimate##0 ~n := #in~n; 12694#L20 assume !(~n < 1); 12690#L22 assume 1 == ~n;#res := 1; 12657#fibo2FINAL assume true; 12648#fibo2EXIT >#52#return; 12472#L15-1 call #t~ret5 := fibo2(~n - 2);< 12643#$Ultimate##0 ~n := #in~n; 12534#L20 assume ~n < 1;#res := 0; 12473#fibo2FINAL assume true; 12527#fibo2EXIT >#54#return; 12639#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 12634#fibo1FINAL assume true; 12615#fibo1EXIT >#50#return; 12602#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 12572#fibo2FINAL assume true; 12583#fibo2EXIT >#52#return; 12472#L15-1 [2024-10-31 22:19:41,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:41,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2114414096, now seen corresponding path program 1 times [2024-10-31 22:19:41,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:41,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518416974] [2024-10-31 22:19:41,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:41,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:41,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 22:19:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:19:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:19:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:19:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:19:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 14 proven. 50 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-10-31 22:19:42,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:42,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518416974] [2024-10-31 22:19:42,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518416974] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:19:42,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788823248] [2024-10-31 22:19:42,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:42,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:19:42,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:42,131 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:19:42,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-10-31 22:19:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:19:42,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:42,279 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 60 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-10-31 22:19:42,279 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:19:42,568 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 60 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-10-31 22:19:42,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788823248] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:19:42,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:19:42,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 17 [2024-10-31 22:19:42,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588721303] [2024-10-31 22:19:42,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:19:42,569 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:19:42,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:42,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1108085027, now seen corresponding path program 2 times [2024-10-31 22:19:42,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:42,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394017142] [2024-10-31 22:19:42,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:42,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:19:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:19:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:19:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:19:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:42,792 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-31 22:19:42,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:42,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394017142] [2024-10-31 22:19:42,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394017142] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:19:42,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669637750] [2024-10-31 22:19:42,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:19:42,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:19:42,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:42,795 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:19:42,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-10-31 22:19:42,853 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:19:42,853 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:19:42,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:19:42,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:42,954 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-31 22:19:42,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:19:43,357 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-31 22:19:43,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669637750] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:19:43,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:19:43,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-10-31 22:19:43,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091019779] [2024-10-31 22:19:43,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:19:43,358 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:19:43,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:43,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-31 22:19:43,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-10-31 22:19:43,359 INFO L87 Difference]: Start difference. First operand 503 states and 688 transitions. cyclomatic complexity: 193 Second operand has 20 states, 17 states have (on average 2.823529411764706) internal successors, (48), 18 states have internal predecessors, (48), 11 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-31 22:19:43,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:43,688 INFO L93 Difference]: Finished difference Result 206 states and 261 transitions. [2024-10-31 22:19:43,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 261 transitions. [2024-10-31 22:19:43,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2024-10-31 22:19:43,692 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 158 states and 197 transitions. [2024-10-31 22:19:43,692 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2024-10-31 22:19:43,692 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2024-10-31 22:19:43,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 197 transitions. [2024-10-31 22:19:43,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:19:43,693 INFO L218 hiAutomatonCegarLoop]: Abstraction has 158 states and 197 transitions. [2024-10-31 22:19:43,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 197 transitions. [2024-10-31 22:19:43,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 150. [2024-10-31 22:19:43,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 98 states have (on average 1.1734693877551021) internal successors, (115), 105 states have internal predecessors, (115), 27 states have call successors, (27), 20 states have call predecessors, (27), 25 states have return successors, (46), 24 states have call predecessors, (46), 24 states have call successors, (46) [2024-10-31 22:19:43,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 188 transitions. [2024-10-31 22:19:43,698 INFO L240 hiAutomatonCegarLoop]: Abstraction has 150 states and 188 transitions. [2024-10-31 22:19:43,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-31 22:19:43,699 INFO L425 stractBuchiCegarLoop]: Abstraction has 150 states and 188 transitions. [2024-10-31 22:19:43,700 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 22:19:43,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 188 transitions. [2024-10-31 22:19:43,701 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2024-10-31 22:19:43,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:19:43,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:19:43,702 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:43,702 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:43,702 INFO L745 eck$LassoCheckResult]: Stem: 14243#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 14217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 14212#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 14211#$Ultimate##0 ~n := #in~n; 14213#L10 assume !(~n < 1); 14234#L12 assume !(1 == ~n); 14220#L15 call #t~ret4 := fibo2(~n - 1);< 14239#$Ultimate##0 ~n := #in~n; 14296#L20 assume !(~n < 1); 14294#L22 assume !(1 == ~n); 14209#L25 call #t~ret6 := fibo1(~n - 1);< 14214#$Ultimate##0 ~n := #in~n; 14216#L10 assume !(~n < 1); 14303#L12 assume !(1 == ~n); 14189#L15 call #t~ret4 := fibo2(~n - 1);< 14194#$Ultimate##0 ~n := #in~n; 14195#L20 assume !(~n < 1); 14188#L22 assume !(1 == ~n); 14190#L25 call #t~ret6 := fibo1(~n - 1);< 14214#$Ultimate##0 ~n := #in~n; 14215#L10 assume !(~n < 1); 14298#L12 assume 1 == ~n;#res := 1; 14299#fibo1FINAL assume true; 14327#fibo1EXIT >#48#return; 14203#L25-1 call #t~ret7 := fibo1(~n - 2);< 14302#$Ultimate##0 ~n := #in~n; 14237#L10 assume ~n < 1;#res := 0; 14202#fibo1FINAL assume true; 14205#fibo1EXIT >#50#return; 14279#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 14274#fibo2FINAL assume true; 14270#fibo2EXIT >#52#return; 14197#L15-1 [2024-10-31 22:19:43,703 INFO L747 eck$LassoCheckResult]: Loop: 14197#L15-1 call #t~ret5 := fibo2(~n - 2);< 14263#$Ultimate##0 ~n := #in~n; 14260#L20 assume !(~n < 1); 14262#L22 assume !(1 == ~n); 14227#L25 call #t~ret6 := fibo1(~n - 1);< 14261#$Ultimate##0 ~n := #in~n; 14258#L10 assume !(~n < 1); 14253#L12 assume !(1 == ~n); 14200#L15 call #t~ret4 := fibo2(~n - 1);< 14249#$Ultimate##0 ~n := #in~n; 14260#L20 assume !(~n < 1); 14262#L22 assume !(1 == ~n); 14227#L25 call #t~ret6 := fibo1(~n - 1);< 14261#$Ultimate##0 ~n := #in~n; 14258#L10 assume !(~n < 1); 14253#L12 assume !(1 == ~n); 14200#L15 call #t~ret4 := fibo2(~n - 1);< 14249#$Ultimate##0 ~n := #in~n; 14257#L20 assume !(~n < 1); 14251#L22 assume 1 == ~n;#res := 1; 14252#fibo2FINAL assume true; 14321#fibo2EXIT >#52#return; 14192#L15-1 call #t~ret5 := fibo2(~n - 2);< 14191#$Ultimate##0 ~n := #in~n; 14193#L20 assume ~n < 1;#res := 0; 14240#fibo2FINAL assume true; 14329#fibo2EXIT >#54#return; 14306#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 14304#fibo1FINAL assume true; 14286#fibo1EXIT >#48#return; 14283#L25-1 call #t~ret7 := fibo1(~n - 2);< 14285#$Ultimate##0 ~n := #in~n; 14305#L10 assume !(~n < 1); 14301#L12 assume 1 == ~n;#res := 1; 14276#fibo1FINAL assume true; 14287#fibo1EXIT >#50#return; 14288#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 14300#fibo2FINAL assume true; 14266#fibo2EXIT >#52#return; 14197#L15-1 [2024-10-31 22:19:43,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:43,703 INFO L85 PathProgramCache]: Analyzing trace with hash -658151768, now seen corresponding path program 1 times [2024-10-31 22:19:43,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:43,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818834748] [2024-10-31 22:19:43,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:43,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:43,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 22:19:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:43,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:19:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:43,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:19:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:43,903 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:19:43,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:43,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818834748] [2024-10-31 22:19:43,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818834748] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:19:43,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126417967] [2024-10-31 22:19:43,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:43,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:19:43,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:43,906 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:19:43,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-10-31 22:19:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:43,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:19:43,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:44,047 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:19:44,048 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:19:44,274 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:19:44,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126417967] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:19:44,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:19:44,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 17 [2024-10-31 22:19:44,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270725896] [2024-10-31 22:19:44,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:19:44,275 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:19:44,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1769482030, now seen corresponding path program 1 times [2024-10-31 22:19:44,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:44,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406717653] [2024-10-31 22:19:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:44,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:44,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:19:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:44,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:19:44,686 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:19:44,686 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:19:44,686 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:19:44,686 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:19:44,686 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:19:44,686 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:44,686 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:19:44,686 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:19:44,687 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration8_Loop [2024-10-31 22:19:44,687 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:19:44,687 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:19:44,688 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:44,690 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:44,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:44,696 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:44,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:44,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:44,703 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:44,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:44,709 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:44,762 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:19:44,762 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:19:44,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:44,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:44,765 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:44,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-10-31 22:19:44,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:44,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:44,783 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:44,783 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:44,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2024-10-31 22:19:44,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:44,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:44,800 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:44,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-10-31 22:19:44,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:44,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:44,818 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:44,819 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=4} Honda state: {fibo1_#in~n=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:44,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2024-10-31 22:19:44,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:44,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:44,840 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:44,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-10-31 22:19:44,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:44,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:44,859 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:44,859 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:44,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2024-10-31 22:19:44,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:44,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:44,881 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:44,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-10-31 22:19:44,883 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:44,883 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:44,900 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:44,900 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:44,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2024-10-31 22:19:44,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:44,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:44,921 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:44,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-10-31 22:19:44,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:44,925 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:44,940 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:44,941 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:44,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2024-10-31 22:19:44,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:44,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:44,962 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:44,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-10-31 22:19:44,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:44,967 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:44,985 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:44,985 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:45,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:45,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,008 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-10-31 22:19:45,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:45,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:45,026 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:45,026 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:45,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:45,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,048 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-10-31 22:19:45,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:45,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:45,069 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:19:45,069 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=2} Honda state: {fibo1_#t~ret4=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:19:45,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:45,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,084 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-10-31 22:19:45,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:19:45,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:45,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2024-10-31 22:19:45,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,119 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-10-31 22:19:45,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:19:45,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:19:45,139 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:19:45,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:45,156 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:19:45,156 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:19:45,156 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:19:45,156 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:19:45,156 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:19:45,156 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,157 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:19:45,157 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:19:45,157 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration8_Loop [2024-10-31 22:19:45,157 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:19:45,157 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:19:45,157 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:45,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:45,161 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:45,163 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:45,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:45,170 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:45,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:45,175 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:45,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:19:45,233 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:19:45,233 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:19:45,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,235 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-10-31 22:19:45,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:19:45,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:45,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:45,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:45,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:45,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:45,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:45,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:45,258 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:45,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2024-10-31 22:19:45,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,279 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-10-31 22:19:45,281 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 [2024-10-31 22:19:45,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:45,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:45,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:45,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:45,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:45,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:45,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:45,297 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:45,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2024-10-31 22:19:45,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,337 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-10-31 22:19:45,339 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 [2024-10-31 22:19:45,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:45,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:45,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:45,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:45,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:45,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:45,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:45,357 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:45,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2024-10-31 22:19:45,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,388 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-10-31 22:19:45,390 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 [2024-10-31 22:19:45,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:45,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:45,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:45,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:45,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:45,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:45,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:45,405 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:45,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:45,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,419 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2024-10-31 22:19:45,420 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 [2024-10-31 22:19:45,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:45,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:45,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:45,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:45,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:45,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:45,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:45,441 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:45,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2024-10-31 22:19:45,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,467 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2024-10-31 22:19:45,480 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 [2024-10-31 22:19:45,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:45,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:45,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:45,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:45,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:45,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:45,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:45,513 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:45,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:45,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,533 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2024-10-31 22:19:45,536 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 [2024-10-31 22:19:45,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:45,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:45,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:45,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:45,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:45,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:45,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:45,553 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:45,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2024-10-31 22:19:45,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,572 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2024-10-31 22:19:45,574 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 [2024-10-31 22:19:45,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:45,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:45,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:45,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:45,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:45,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:45,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:45,588 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:19:45,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2024-10-31 22:19:45,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,602 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2024-10-31 22:19:45,603 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 [2024-10-31 22:19:45,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:19:45,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:19:45,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:19:45,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:19:45,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:19:45,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:19:45,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:19:45,619 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:19:45,623 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:19:45,623 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:19:45,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:19:45,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:45,626 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:45,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2024-10-31 22:19:45,628 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:19:45,628 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:19:45,628 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:19:45,628 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_~n) = 1*fibo1_~n Supporting invariants [] [2024-10-31 22:19:45,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:45,646 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:19:45,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:45,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:19:45,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:45,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:45,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-31 22:19:45,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:19:46,284 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:19:46,285 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 11 loop predicates [2024-10-31 22:19:46,285 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 150 states and 188 transitions. cyclomatic complexity: 40 Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 9 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (8), 4 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-31 22:19:46,923 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 150 states and 188 transitions. cyclomatic complexity: 40. Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 9 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (8), 4 states have call predecessors, (8), 7 states have call successors, (8) Result 579 states and 758 transitions. Complement of second has 72 states. [2024-10-31 22:19:46,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 17 states 2 stem states 14 non-accepting loop states 1 accepting loop states [2024-10-31 22:19:46,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 9 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (8), 4 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-31 22:19:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 80 transitions. [2024-10-31 22:19:46,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 80 transitions. Stem has 32 letters. Loop has 39 letters. [2024-10-31 22:19:46,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:46,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 80 transitions. Stem has 71 letters. Loop has 39 letters. [2024-10-31 22:19:46,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:46,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 80 transitions. Stem has 32 letters. Loop has 78 letters. [2024-10-31 22:19:46,931 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:19:46,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 579 states and 758 transitions. [2024-10-31 22:19:46,941 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2024-10-31 22:19:46,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 579 states to 527 states and 695 transitions. [2024-10-31 22:19:46,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 260 [2024-10-31 22:19:46,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 280 [2024-10-31 22:19:46,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 527 states and 695 transitions. [2024-10-31 22:19:46,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:19:46,948 INFO L218 hiAutomatonCegarLoop]: Abstraction has 527 states and 695 transitions. [2024-10-31 22:19:46,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states and 695 transitions. [2024-10-31 22:19:46,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 476. [2024-10-31 22:19:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 306 states have (on average 1.1830065359477124) internal successors, (362), 325 states have internal predecessors, (362), 92 states have call successors, (93), 60 states have call predecessors, (93), 78 states have return successors, (168), 90 states have call predecessors, (168), 89 states have call successors, (168) [2024-10-31 22:19:46,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 623 transitions. [2024-10-31 22:19:46,964 INFO L240 hiAutomatonCegarLoop]: Abstraction has 476 states and 623 transitions. [2024-10-31 22:19:46,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:46,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:19:46,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:19:46,965 INFO L87 Difference]: Start difference. First operand 476 states and 623 transitions. Second operand has 18 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 8 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-31 22:19:47,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:19:47,185 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2024-10-31 22:19:47,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 58 transitions. [2024-10-31 22:19:47,186 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:19:47,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 0 states and 0 transitions. [2024-10-31 22:19:47,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:19:47,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:19:47,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:19:47,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:19:47,186 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:19:47,186 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:19:47,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:19:47,189 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:19:47,189 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-31 22:19:47,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:19:47,189 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:19:47,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:19:47,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:19:47 BoogieIcfgContainer [2024-10-31 22:19:47,197 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:19:47,197 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:19:47,198 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:19:47,198 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:19:47,198 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:25" (3/4) ... [2024-10-31 22:19:47,200 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:19:47,201 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:19:47,202 INFO L158 Benchmark]: Toolchain (without parser) took 22530.01ms. Allocated memory was 121.6MB in the beginning and 239.1MB in the end (delta: 117.4MB). Free memory was 87.8MB in the beginning and 107.6MB in the end (delta: -19.8MB). Peak memory consumption was 100.2MB. Max. memory is 16.1GB. [2024-10-31 22:19:47,202 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:19:47,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.41ms. Allocated memory is still 121.6MB. Free memory was 87.8MB in the beginning and 75.9MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:19:47,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.45ms. Allocated memory is still 121.6MB. Free memory was 75.9MB in the beginning and 74.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:19:47,203 INFO L158 Benchmark]: Boogie Preprocessor took 33.82ms. Allocated memory is still 121.6MB. Free memory was 74.3MB in the beginning and 72.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:19:47,204 INFO L158 Benchmark]: RCFGBuilder took 362.66ms. Allocated memory is still 121.6MB. Free memory was 72.8MB in the beginning and 62.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:19:47,204 INFO L158 Benchmark]: BuchiAutomizer took 21835.84ms. Allocated memory was 121.6MB in the beginning and 239.1MB in the end (delta: 117.4MB). Free memory was 62.3MB in the beginning and 107.6MB in the end (delta: -45.3MB). Peak memory consumption was 75.0MB. Max. memory is 16.1GB. [2024-10-31 22:19:47,204 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 239.1MB. Free memory is still 107.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:19:47,205 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.41ms. Allocated memory is still 121.6MB. Free memory was 87.8MB in the beginning and 75.9MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.45ms. Allocated memory is still 121.6MB. Free memory was 75.9MB in the beginning and 74.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.82ms. Allocated memory is still 121.6MB. Free memory was 74.3MB in the beginning and 72.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 362.66ms. Allocated memory is still 121.6MB. Free memory was 72.8MB in the beginning and 62.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 21835.84ms. Allocated memory was 121.6MB in the beginning and 239.1MB in the end (delta: 117.4MB). Free memory was 62.3MB in the beginning and 107.6MB in the end (delta: -45.3MB). Peak memory consumption was 75.0MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 239.1MB. Free memory is still 107.6MB. 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 12 terminating modules (7 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 8 locations. One deterministic module has affine ranking function n and consists of 14 locations. One deterministic module has affine ranking function n and consists of 17 locations. One nondeterministic module has affine ranking function \old(n) and consists of 9 locations. One nondeterministic module has affine ranking function \old(n) and consists of 12 locations. 7 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 21.7s and 9 iterations. TraceHistogramMax:6. Analysis of lassos took 11.3s. Construction of modules took 2.3s. Büchi inclusion checks took 7.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 11. Automata minimization 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 419 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 9/41 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 759 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 732 mSDsluCounter, 1501 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1104 mSDsCounter, 458 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2643 IncrementalHoareTripleChecker+Invalid, 3101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 458 mSolverCounterUnsat, 397 mSDtfsCounter, 2643 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI3 SILT3 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp82 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf91 smp82 dnf100 smp100 tf113 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 28 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-31 22:19:47,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:47,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:47,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:47,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-10-31 22:19:48,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-10-31 22:19:48,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-10-31 22:19:48,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-10-31 22:19:48,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-31 22:19:48,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbe2445-2887-4798-8397-131b5413fdd4/bin/uautomizer-verify-4GaUIPS5ZU/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