./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_6-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_6-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB --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 31de98bafea1eb3233157f378400eba30060b6561e9e0a6257ecfebe8e53877a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:12:45,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:12:45,136 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-27 20:12:45,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:12:45,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:12:45,196 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:12:45,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:12:45,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:12:45,198 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:12:45,198 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:12:45,199 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:12:45,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:12:45,200 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:12:45,200 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 20:12:45,201 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 20:12:45,201 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 20:12:45,201 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 20:12:45,201 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 20:12:45,202 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 20:12:45,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:12:45,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 20:12:45,202 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:12:45,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:12:45,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:12:45,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:12:45,203 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 20:12:45,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 20:12:45,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 20:12:45,203 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:12:45,203 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:12:45,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:12:45,204 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 20:12:45,204 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:12:45,204 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:12:45,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:12:45,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:12:45,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:12:45,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 20:12:45,205 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 20:12:45,205 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 31de98bafea1eb3233157f378400eba30060b6561e9e0a6257ecfebe8e53877a [2024-11-27 20:12:45,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:12:45,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:12:45,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:12:45,583 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:12:45,583 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:12:45,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/recursive-simple/fibo_2calls_6-2.c [2024-11-27 20:12:49,036 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/data/9f9c8e006/7ef6a9cf03b940f59623eae979316584/FLAG494adaa03 [2024-11-27 20:12:49,333 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:12:49,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/sv-benchmarks/c/recursive-simple/fibo_2calls_6-2.c [2024-11-27 20:12:49,343 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/data/9f9c8e006/7ef6a9cf03b940f59623eae979316584/FLAG494adaa03 [2024-11-27 20:12:49,360 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/data/9f9c8e006/7ef6a9cf03b940f59623eae979316584 [2024-11-27 20:12:49,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:12:49,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:12:49,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:12:49,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:12:49,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:12:49,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29260e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49, skipping insertion in model container [2024-11-27 20:12:49,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:12:49,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:12:49,647 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:12:49,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:12:49,688 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:12:49,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49 WrapperNode [2024-11-27 20:12:49,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:12:49,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:12:49,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:12:49,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:12:49,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,731 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20 [2024-11-27 20:12:49,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:12:49,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:12:49,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:12:49,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:12:49,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,748 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,767 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]. [2024-11-27 20:12:49,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,772 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,777 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:12:49,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:12:49,792 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:12:49,792 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:12:49,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (1/1) ... [2024-11-27 20:12:49,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:49,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:49,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:49,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 20:12:49,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:12:49,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:12:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-11-27 20:12:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-11-27 20:12:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-11-27 20:12:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-11-27 20:12:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:12:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:12:49,966 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:12:49,968 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:12:50,169 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-27 20:12:50,169 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:12:50,184 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:12:50,185 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:12:50,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:12:50 BoogieIcfgContainer [2024-11-27 20:12:50,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:12:50,188 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 20:12:50,188 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 20:12:50,197 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 20:12:50,198 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:12:50,198 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 08:12:49" (1/3) ... [2024-11-27 20:12:50,200 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1db8abfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:12:50, skipping insertion in model container [2024-11-27 20:12:50,200 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:12:50,200 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:12:49" (2/3) ... [2024-11-27 20:12:50,202 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1db8abfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:12:50, skipping insertion in model container [2024-11-27 20:12:50,202 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:12:50,203 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:12:50" (3/3) ... [2024-11-27 20:12:50,205 INFO L363 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_6-2.c [2024-11-27 20:12:50,290 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 20:12:50,292 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 20:12:50,292 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 20:12:50,292 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 20:12:50,292 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 20:12:50,293 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 20:12:50,294 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 20:12:50,294 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 20:12:50,301 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) [2024-11-27 20:12:50,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:12:50,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:12:50,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:12:50,337 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-27 20:12:50,338 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:50,338 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 20:12:50,338 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) [2024-11-27 20:12:50,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:12:50,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:12:50,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:12:50,345 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-27 20:12:50,345 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:50,355 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 6;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< [2024-11-27 20:12:50,355 INFO L749 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< [2024-11-27 20:12:50,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:50,363 INFO L85 PathProgramCache]: Analyzing trace with hash 29898, now seen corresponding path program 1 times [2024-11-27 20:12:50,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:12:50,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61124712] [2024-11-27 20:12:50,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:50,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:12:50,500 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:12:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:12:50,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:12:50,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:50,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1206117480, now seen corresponding path program 1 times [2024-11-27 20:12:50,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:12:50,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938810285] [2024-11-27 20:12:50,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:50,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:12:50,569 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:12:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:12:50,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:12:50,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:50,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1276411855, now seen corresponding path program 1 times [2024-11-27 20:12:50,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:12:50,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948564519] [2024-11-27 20:12:50,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:50,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:12:50,625 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:12:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:12:50,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:12:51,016 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:12:51,017 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:12:51,018 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:12:51,018 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:12:51,018 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:12:51,019 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,019 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:12:51,019 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:12:51,019 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-2.c_Iteration1_Loop [2024-11-27 20:12:51,020 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:12:51,020 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:12:51,041 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,063 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,070 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,075 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,079 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,214 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:12:51,214 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:12:51,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:51,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:51,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-27 20:12:51,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:12:51,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:12:51,251 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:12:51,251 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:12:51,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-27 20:12:51,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:51,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:51,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-27 20:12:51,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:12:51,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:12:51,293 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:12:51,294 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:12:51,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-27 20:12:51,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:51,310 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:51,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-27 20:12:51,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:12:51,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:12:51,336 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:12:51,336 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:12:51,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-27 20:12:51,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:51,354 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:51,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-27 20:12:51,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:12:51,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:12:51,382 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:12:51,382 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:12:51,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-27 20:12:51,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:51,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:51,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-27 20:12:51,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:12:51,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:12:51,425 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:12:51,426 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:12:51,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-27 20:12:51,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:51,442 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:51,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-27 20:12:51,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:12:51,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:12:51,506 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:12:51,506 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:12:51,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:12:51,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:51,524 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:51,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-27 20:12:51,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:12:51,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:12:51,553 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:12:51,554 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:12:51,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:12:51,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:51,571 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:51,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-27 20:12:51,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:12:51,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:12:51,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-27 20:12:51,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:51,616 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:51,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-27 20:12:51,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:12:51,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:12:51,700 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:12:51,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:12:51,706 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:12:51,706 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:12:51,706 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:12:51,707 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:12:51,707 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:12:51,707 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,707 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:12:51,707 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:12:51,707 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-2.c_Iteration1_Loop [2024-11-27 20:12:51,707 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:12:51,707 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:12:51,709 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,715 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,754 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:51,856 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:12:51,862 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:12:51,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:51,866 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:51,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-27 20:12:51,872 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 [2024-11-27 20:12:51,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:12:51,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:12:51,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:12:51,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:12:51,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:12:51,897 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:12:51,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:12:51,901 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:12:51,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-27 20:12:51,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:51,917 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:51,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-27 20:12:51,923 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 [2024-11-27 20:12:51,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:12:51,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:12:51,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:12:51,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:12:51,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:12:51,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:12:51,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:12:51,949 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:12:51,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-27 20:12:51,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:51,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:51,965 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:51,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-27 20:12:51,972 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 [2024-11-27 20:12:51,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:12:51,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:12:51,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:12:51,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:12:51,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:12:51,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:12:51,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:12:51,994 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:12:52,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-27 20:12:52,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:52,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:52,009 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:52,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-27 20:12:52,013 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 [2024-11-27 20:12:52,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:12:52,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:12:52,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:12:52,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:12:52,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:12:52,028 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:12:52,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:12:52,031 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:12:52,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-27 20:12:52,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:52,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:52,046 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:52,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:12:52,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-27 20:12:52,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:12:52,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:12:52,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:12:52,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:12:52,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:12:52,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:12:52,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:12:52,073 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:12:52,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-27 20:12:52,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:52,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:52,089 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:52,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-27 20:12:52,094 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 [2024-11-27 20:12:52,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:12:52,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:12:52,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:12:52,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:12:52,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:12:52,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:12:52,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:12:52,117 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:12:52,126 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 20:12:52,131 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 20:12:52,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:52,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:52,136 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:52,146 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:12:52,146 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:12:52,147 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:12:52,147 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2024-11-27 20:12:52,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-27 20:12:52,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-27 20:12:52,165 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:12:52,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:52,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:12:52,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:52,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:12:52,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:52,461 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 [2024-11-27 20:12:52,463 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) [2024-11-27 20:12:52,742 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. [2024-11-27 20:12:52,745 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 [2024-11-27 20:12:52,751 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) [2024-11-27 20:12:52,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 19 transitions. [2024-11-27 20:12:52,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-27 20:12:52,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:12:52,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2024-11-27 20:12:52,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:12:52,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 3 letters. Loop has 16 letters. [2024-11-27 20:12:52,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:12:52,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 107 transitions. [2024-11-27 20:12:52,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:12:52,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 55 states and 75 transitions. [2024-11-27 20:12:52,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2024-11-27 20:12:52,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-11-27 20:12:52,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 75 transitions. [2024-11-27 20:12:52,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:12:52,798 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 75 transitions. [2024-11-27 20:12:52,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 75 transitions. [2024-11-27 20:12:52,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2024-11-27 20:12:52,843 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) [2024-11-27 20:12:52,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2024-11-27 20:12:52,851 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-11-27 20:12:52,851 INFO L425 stractBuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-11-27 20:12:52,851 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 20:12:52,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 72 transitions. [2024-11-27 20:12:52,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:12:52,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:12:52,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:12:52,857 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:52,857 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:52,858 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 6;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#48#return;" [2024-11-27 20:12:52,858 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#48#return;" [2024-11-27 20:12:52,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:52,859 INFO L85 PathProgramCache]: Analyzing trace with hash -722660232, now seen corresponding path program 1 times [2024-11-27 20:12:52,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:12:52,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291302984] [2024-11-27 20:12:52,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:52,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:53,021 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-27 20:12:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:53,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:12:53,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291302984] [2024-11-27 20:12:53,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291302984] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:12:53,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913844849] [2024-11-27 20:12:53,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:53,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:12:53,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:53,116 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:12:53,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:12:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:53,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:12:53,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:53,320 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:12:53,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-27 20:12:53,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913844849] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:12:53,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:12:53,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 16 [2024-11-27 20:12:53,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429381359] [2024-11-27 20:12:53,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:12:53,589 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:12:53,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:53,589 INFO L85 PathProgramCache]: Analyzing trace with hash -880179458, now seen corresponding path program 1 times [2024-11-27 20:12:53,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:12:53,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795614743] [2024-11-27 20:12:53,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:53,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:53,690 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-27 20:12:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:53,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:12:53,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795614743] [2024-11-27 20:12:53,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795614743] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:12:53,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841176271] [2024-11-27 20:12:53,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:53,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:12:53,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:53,762 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:12:53,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 20:12:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:53,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:12:53,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:53,854 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:12:53,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841176271] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:12:53,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:12:53,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-27 20:12:53,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075098077] [2024-11-27 20:12:53,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:12:53,973 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:12:53,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:12:53,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:12:53,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:12:53,979 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. cyclomatic complexity: 20 Second operand has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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) [2024-11-27 20:12:54,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:54,090 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2024-11-27 20:12:54,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2024-11-27 20:12:54,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:12:54,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 60 states and 79 transitions. [2024-11-27 20:12:54,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-27 20:12:54,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-11-27 20:12:54,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 79 transitions. [2024-11-27 20:12:54,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:12:54,098 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-27 20:12:54,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 79 transitions. [2024-11-27 20:12:54,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-27 20:12:54,105 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) [2024-11-27 20:12:54,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 79 transitions. [2024-11-27 20:12:54,109 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-27 20:12:54,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:12:54,111 INFO L425 stractBuchiCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-27 20:12:54,112 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 20:12:54,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 79 transitions. [2024-11-27 20:12:54,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:12:54,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:12:54,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:12:54,116 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:54,116 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] [2024-11-27 20:12:54,116 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 6;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" [2024-11-27 20:12:54,117 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#48#return;" [2024-11-27 20:12:54,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:54,117 INFO L85 PathProgramCache]: Analyzing trace with hash -927605802, now seen corresponding path program 1 times [2024-11-27 20:12:54,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:12:54,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547756684] [2024-11-27 20:12:54,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:54,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:54,237 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-27 20:12:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:54,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:12:54,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547756684] [2024-11-27 20:12:54,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547756684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:12:54,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246204950] [2024-11-27 20:12:54,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:54,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:12:54,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:54,296 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:12:54,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 20:12:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:54,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:12:54,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:54,401 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:12:54,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246204950] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:12:54,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:12:54,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-27 20:12:54,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352802784] [2024-11-27 20:12:54,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:12:54,600 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:12:54,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:54,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1290736728, now seen corresponding path program 1 times [2024-11-27 20:12:54,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:12:54,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670813298] [2024-11-27 20:12:54,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:54,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:54,808 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-27 20:12:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:54,936 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:12:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:55,013 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:12:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:55,062 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:12:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:55,076 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-27 20:12:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:55,171 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:12:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:55,182 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:12:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:55,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:12:55,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670813298] [2024-11-27 20:12:55,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670813298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:12:55,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011178043] [2024-11-27 20:12:55,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:55,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:12:55,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:55,198 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:12:55,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 20:12:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:55,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:12:55,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:55,430 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:12:55,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011178043] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:12:55,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:12:55,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-11-27 20:12:55,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388961679] [2024-11-27 20:12:55,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:12:55,979 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:12:55,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:12:55,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:12:55,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:12:55,980 INFO L87 Difference]: Start difference. First operand 60 states and 79 transitions. cyclomatic complexity: 21 Second operand has 16 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:12:56,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:56,344 INFO L93 Difference]: Finished difference Result 97 states and 122 transitions. [2024-11-27 20:12:56,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 122 transitions. [2024-11-27 20:12:56,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:12:56,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 88 states and 113 transitions. [2024-11-27 20:12:56,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2024-11-27 20:12:56,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2024-11-27 20:12:56,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 113 transitions. [2024-11-27 20:12:56,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:12:56,361 INFO L218 hiAutomatonCegarLoop]: Abstraction has 88 states and 113 transitions. [2024-11-27 20:12:56,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 113 transitions. [2024-11-27 20:12:56,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-27 20:12:56,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 62 states have internal predecessors, (67), 19 states have call successors, (19), 12 states have call predecessors, (19), 12 states have return successors, (27), 13 states have call predecessors, (27), 17 states have call successors, (27) [2024-11-27 20:12:56,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 113 transitions. [2024-11-27 20:12:56,375 INFO L240 hiAutomatonCegarLoop]: Abstraction has 88 states and 113 transitions. [2024-11-27 20:12:56,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:12:56,383 INFO L425 stractBuchiCegarLoop]: Abstraction has 88 states and 113 transitions. [2024-11-27 20:12:56,383 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 20:12:56,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states and 113 transitions. [2024-11-27 20:12:56,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:12:56,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:12:56,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:12:56,391 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:56,391 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:56,391 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 6;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< [2024-11-27 20:12:56,392 INFO L749 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< [2024-11-27 20:12:56,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:56,392 INFO L85 PathProgramCache]: Analyzing trace with hash -3026602, now seen corresponding path program 1 times [2024-11-27 20:12:56,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:12:56,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687924766] [2024-11-27 20:12:56,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:56,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:56,515 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-27 20:12:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:56,589 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:12:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:56,617 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-27 20:12:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:56,628 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:12:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:56,632 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:12:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:56,638 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:12:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:56,641 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-27 20:12:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:56,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:12:56,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687924766] [2024-11-27 20:12:56,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687924766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:12:56,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73853962] [2024-11-27 20:12:56,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:56,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:12:56,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:56,648 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:12:56,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 20:12:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:56,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:12:56,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:56,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:12:57,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73853962] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:12:57,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:12:57,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 15, 15] total 20 [2024-11-27 20:12:57,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765781058] [2024-11-27 20:12:57,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:12:57,404 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:12:57,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:57,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1206117480, now seen corresponding path program 2 times [2024-11-27 20:12:57,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:12:57,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518995923] [2024-11-27 20:12:57,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:57,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:12:57,409 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:12:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:12:57,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:12:57,539 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:12:57,539 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:12:57,539 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:12:57,539 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:12:57,539 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:12:57,540 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:57,540 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:12:57,540 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:12:57,540 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-2.c_Iteration4_Loop [2024-11-27 20:12:57,540 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:12:57,540 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:12:57,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,550 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,552 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,557 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,563 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,565 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,609 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:12:57,610 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:12:57,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:57,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:57,616 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:57,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-27 20:12:57,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:12:57,621 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:12:57,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-27 20:12:57,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:57,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:57,645 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:57,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-27 20:12:57,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:12:57,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:12:57,708 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:12:57,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-27 20:12:57,713 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:12:57,713 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:12:57,713 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:12:57,713 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:12:57,713 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:12:57,713 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:57,713 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:12:57,713 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:12:57,713 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-2.c_Iteration4_Loop [2024-11-27 20:12:57,713 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:12:57,713 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:12:57,714 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,723 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,725 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:12:57,781 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:12:57,782 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:12:57,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:57,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:57,788 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:57,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-27 20:12:57,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:12:57,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:12:57,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:12:57,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:12:57,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:12:57,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:12:57,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:12:57,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:12:57,810 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:12:57,816 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 20:12:57,817 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 20:12:57,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:12:57,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:12:57,820 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:12:57,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-27 20:12:57,823 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:12:57,823 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:12:57,823 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:12:57,824 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2024-11-27 20:12:57,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-27 20:12:57,833 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:12:57,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:57,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 20:12:57,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:58,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-27 20:12:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:58,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:12:58,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:58,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:58,587 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 [2024-11-27 20:12:58,587 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 88 states and 113 transitions. cyclomatic complexity: 27 Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:12:58,818 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 88 states and 113 transitions. cyclomatic complexity: 27. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 151 states and 201 transitions. Complement of second has 30 states. [2024-11-27 20:12:58,818 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 [2024-11-27 20:12:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:12:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 38 transitions. [2024-11-27 20:12:58,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 61 letters. Loop has 8 letters. [2024-11-27 20:12:58,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:12:58,820 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 20:12:58,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:58,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 20:12:58,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:59,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:12:59,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:12:59,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:12:59,582 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 [2024-11-27 20:12:59,582 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 88 states and 113 transitions. cyclomatic complexity: 27 Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:12:59,811 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 88 states and 113 transitions. cyclomatic complexity: 27. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 151 states and 201 transitions. Complement of second has 30 states. [2024-11-27 20:12:59,812 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 [2024-11-27 20:12:59,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:12:59,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 38 transitions. [2024-11-27 20:12:59,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 61 letters. Loop has 8 letters. [2024-11-27 20:12:59,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:12:59,814 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 20:12:59,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:59,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 20:12:59,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:13:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:00,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:13:00,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:13:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:00,483 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 [2024-11-27 20:13:00,483 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 88 states and 113 transitions. cyclomatic complexity: 27 Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:13:00,693 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 88 states and 113 transitions. cyclomatic complexity: 27. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 146 states and 189 transitions. Complement of second has 29 states. [2024-11-27 20:13:00,696 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 [2024-11-27 20:13:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 5 states have internal predecessors, (26), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:13:00,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2024-11-27 20:13:00,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 61 letters. Loop has 8 letters. [2024-11-27 20:13:00,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:13:00,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 69 letters. Loop has 8 letters. [2024-11-27 20:13:00,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:13:00,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 61 letters. Loop has 16 letters. [2024-11-27 20:13:00,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:13:00,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 189 transitions. [2024-11-27 20:13:00,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2024-11-27 20:13:00,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 130 states and 172 transitions. [2024-11-27 20:13:00,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2024-11-27 20:13:00,714 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2024-11-27 20:13:00,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 130 states and 172 transitions. [2024-11-27 20:13:00,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:13:00,714 INFO L218 hiAutomatonCegarLoop]: Abstraction has 130 states and 172 transitions. [2024-11-27 20:13:00,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states and 172 transitions. [2024-11-27 20:13:00,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 91. [2024-11-27 20:13:00,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.2) internal successors, (72), 64 states have internal predecessors, (72), 19 states have call successors, (19), 13 states have call predecessors, (19), 12 states have return successors, (25), 13 states have call predecessors, (25), 17 states have call successors, (25) [2024-11-27 20:13:00,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 116 transitions. [2024-11-27 20:13:00,730 INFO L240 hiAutomatonCegarLoop]: Abstraction has 91 states and 116 transitions. [2024-11-27 20:13:00,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:13:00,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 20:13:00,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:13:00,731 INFO L87 Difference]: Start difference. First operand 91 states and 116 transitions. Second operand has 20 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 16 states have internal predecessors, (46), 11 states have call successors, (16), 6 states have call predecessors, (16), 4 states have return successors, (11), 3 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-27 20:13:01,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:01,113 INFO L93 Difference]: Finished difference Result 99 states and 122 transitions. [2024-11-27 20:13:01,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 122 transitions. [2024-11-27 20:13:01,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-27 20:13:01,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 95 states and 118 transitions. [2024-11-27 20:13:01,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2024-11-27 20:13:01,118 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2024-11-27 20:13:01,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 118 transitions. [2024-11-27 20:13:01,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:13:01,118 INFO L218 hiAutomatonCegarLoop]: Abstraction has 95 states and 118 transitions. [2024-11-27 20:13:01,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 118 transitions. [2024-11-27 20:13:01,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-11-27 20:13:01,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 66 states have internal predecessors, (71), 19 states have call successors, (19), 13 states have call predecessors, (19), 13 states have return successors, (26), 13 states have call predecessors, (26), 17 states have call successors, (26) [2024-11-27 20:13:01,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 116 transitions. [2024-11-27 20:13:01,125 INFO L240 hiAutomatonCegarLoop]: Abstraction has 93 states and 116 transitions. [2024-11-27 20:13:01,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:13:01,126 INFO L425 stractBuchiCegarLoop]: Abstraction has 93 states and 116 transitions. [2024-11-27 20:13:01,126 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-27 20:13:01,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 116 transitions. [2024-11-27 20:13:01,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-27 20:13:01,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:13:01,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:13:01,129 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:13:01,129 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:01,129 INFO L747 eck$LassoCheckResult]: Stem: "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);" "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 := 6;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" [2024-11-27 20:13:01,129 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" [2024-11-27 20:13:01,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:01,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1883562252, now seen corresponding path program 2 times [2024-11-27 20:13:01,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:13:01,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556806272] [2024-11-27 20:13:01,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:01,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:13:01,137 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:13:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:13:01,143 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:13:01,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:01,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1544065082, now seen corresponding path program 3 times [2024-11-27 20:13:01,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:13:01,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688539846] [2024-11-27 20:13:01,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:01,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:13:01,147 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:13:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:13:01,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:13:01,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:01,150 INFO L85 PathProgramCache]: Analyzing trace with hash -858966459, now seen corresponding path program 3 times [2024-11-27 20:13:01,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:13:01,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643175754] [2024-11-27 20:13:01,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:01,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:01,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:13:01,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643175754] [2024-11-27 20:13:01,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643175754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:13:01,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759735070] [2024-11-27 20:13:01,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:01,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:13:01,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:01,358 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:13:01,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-27 20:13:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:01,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:13:01,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:13:01,492 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:13:01,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759735070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:13:01,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:13:01,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 18 [2024-11-27 20:13:01,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443299853] [2024-11-27 20:13:01,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:13:01,808 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:13:01,808 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:13:01,808 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:13:01,808 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:13:01,808 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:13:01,808 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:01,808 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:13:01,808 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:13:01,808 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-2.c_Iteration5_Loop [2024-11-27 20:13:01,809 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:13:01,809 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:13:01,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:01,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:01,816 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:01,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:01,823 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:01,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:01,835 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:01,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:01,889 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:13:01,889 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:13:01,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:01,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:01,896 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:01,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-27 20:13:01,898 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:13:01,898 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:13:01,914 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:13:01,915 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:13:01,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-27 20:13:01,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:01,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:01,927 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:01,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-27 20:13:01,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:13:01,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:13:01,948 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:13:01,948 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:13:01,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-27 20:13:01,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:01,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:01,959 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:01,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-27 20:13:01,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:13:01,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:13:01,981 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:13:01,981 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:13:01,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-27 20:13:01,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:01,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:01,992 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:01,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-27 20:13:01,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:13:01,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:13:02,012 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:13:02,012 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:13:02,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-27 20:13:02,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:02,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:02,024 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:02,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-27 20:13:02,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:13:02,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:13:02,043 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:13:02,043 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:13:02,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-27 20:13:02,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:02,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:02,054 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:02,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-27 20:13:02,058 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:13:02,059 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:13:02,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-27 20:13:02,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:02,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:02,097 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:02,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-27 20:13:02,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:13:02,101 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:13:02,277 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:13:02,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-27 20:13:02,281 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:13:02,281 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:13:02,281 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:13:02,281 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:13:02,281 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:13:02,282 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:02,282 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:13:02,282 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:13:02,282 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-2.c_Iteration5_Loop [2024-11-27 20:13:02,282 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:13:02,282 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:13:02,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:02,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:02,287 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:02,290 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:02,292 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:02,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:02,297 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:02,308 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:13:02,369 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:13:02,369 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:13:02,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:02,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:02,371 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:02,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-27 20:13:02,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:13:02,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:13:02,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:13:02,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:13:02,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:13:02,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:13:02,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:13:02,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:13:02,390 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:13:02,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-27 20:13:02,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:02,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:02,397 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:02,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-27 20:13:02,400 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 [2024-11-27 20:13:02,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:13:02,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:13:02,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:13:02,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:13:02,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:13:02,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:13:02,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:13:02,413 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:13:02,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-27 20:13:02,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:02,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:02,421 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:02,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-27 20:13:02,423 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 [2024-11-27 20:13:02,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:13:02,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:13:02,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:13:02,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:13:02,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:13:02,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:13:02,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:13:02,438 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:13:02,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-27 20:13:02,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:02,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:02,449 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:02,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-27 20:13:02,451 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 [2024-11-27 20:13:02,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:13:02,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:13:02,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:13:02,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:13:02,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:13:02,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:13:02,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:13:02,464 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:13:02,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-27 20:13:02,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:02,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:02,474 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:02,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-27 20:13:02,478 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 [2024-11-27 20:13:02,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:13:02,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:13:02,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:13:02,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:13:02,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:13:02,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:13:02,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:13:02,491 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:13:02,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-11-27 20:13:02,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:02,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:02,501 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:02,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-27 20:13:02,503 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 [2024-11-27 20:13:02,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:13:02,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:13:02,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:13:02,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:13:02,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:13:02,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:13:02,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:13:02,517 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:13:02,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-11-27 20:13:02,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:02,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:02,524 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:02,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-27 20:13:02,527 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 [2024-11-27 20:13:02,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:13:02,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:13:02,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:13:02,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:13:02,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:13:02,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:13:02,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:13:02,542 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:13:02,545 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 20:13:02,546 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 20:13:02,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:13:02,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:13:02,551 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:13:02,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-27 20:13:02,553 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:13:02,553 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:13:02,553 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:13:02,553 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_~n) = 1*fibo1_~n Supporting invariants [] [2024-11-27 20:13:02,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-27 20:13:02,562 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:13:02,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:02,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:13:02,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:13:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:02,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:13:02,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:13:02,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:13:02,743 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2024-11-27 20:13:02,744 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 93 states and 116 transitions. cyclomatic complexity: 24 Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:02,854 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 93 states and 116 transitions. cyclomatic complexity: 24. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 159 states and 193 transitions. Complement of second has 19 states. [2024-11-27 20:13:02,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-27 20:13:02,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:02,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2024-11-27 20:13:02,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 22 letters. Loop has 8 letters. [2024-11-27 20:13:02,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:13:02,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 30 letters. Loop has 8 letters. [2024-11-27 20:13:02,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:13:02,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 22 letters. Loop has 16 letters. [2024-11-27 20:13:02,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:13:02,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 193 transitions. [2024-11-27 20:13:02,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-27 20:13:02,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 122 states and 153 transitions. [2024-11-27 20:13:02,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2024-11-27 20:13:02,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2024-11-27 20:13:02,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 153 transitions. [2024-11-27 20:13:02,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:13:02,864 INFO L218 hiAutomatonCegarLoop]: Abstraction has 122 states and 153 transitions. [2024-11-27 20:13:02,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states and 153 transitions. [2024-11-27 20:13:02,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 93. [2024-11-27 20:13:02,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 66 states have internal predecessors, (71), 19 states have call successors, (19), 13 states have call predecessors, (19), 13 states have return successors, (26), 13 states have call predecessors, (26), 17 states have call successors, (26) [2024-11-27 20:13:02,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 116 transitions. [2024-11-27 20:13:02,875 INFO L240 hiAutomatonCegarLoop]: Abstraction has 93 states and 116 transitions. [2024-11-27 20:13:02,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:13:02,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:13:02,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:13:02,876 INFO L87 Difference]: Start difference. First operand 93 states and 116 transitions. Second operand has 18 states, 17 states have (on average 1.588235294117647) internal successors, (27), 11 states have internal predecessors, (27), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:13:03,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-27 20:13:03,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:03,218 INFO L93 Difference]: Finished difference Result 143 states and 170 transitions. [2024-11-27 20:13:03,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 143 states and 170 transitions. [2024-11-27 20:13:03,220 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 20:13:03,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 143 states to 0 states and 0 transitions. [2024-11-27 20:13:03,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-27 20:13:03,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-27 20:13:03,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-27 20:13:03,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:13:03,221 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:13:03,221 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:13:03,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:13:03,222 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:13:03,222 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-27 20:13:03,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:13:03,222 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 20:13:03,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-27 20:13:03,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 08:13:03 BoogieIcfgContainer [2024-11-27 20:13:03,231 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 20:13:03,232 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:13:03,232 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:13:03,232 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:13:03,233 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:12:50" (3/4) ... [2024-11-27 20:13:03,235 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 20:13:03,236 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:13:03,237 INFO L158 Benchmark]: Toolchain (without parser) took 13872.43ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 92.1MB in the beginning and 109.2MB in the end (delta: -17.1MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2024-11-27 20:13:03,238 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 39.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:13:03,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.98ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 80.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:13:03,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.61ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:13:03,239 INFO L158 Benchmark]: Boogie Preprocessor took 54.01ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.6MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:13:03,239 INFO L158 Benchmark]: RCFGBuilder took 398.14ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 69.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:13:03,239 INFO L158 Benchmark]: BuchiAutomizer took 13043.48ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 69.1MB in the beginning and 109.2MB in the end (delta: -40.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:13:03,240 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 109.2MB in the end (delta: 18.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:13:03,241 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 39.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.98ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 80.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.61ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.01ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.6MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 398.14ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 69.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 13043.48ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 69.1MB in the beginning and 109.2MB in the end (delta: -40.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 109.2MB in the end (delta: 18.1kB). 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 7 terminating modules (4 trivial, 2 deterministic, 1 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 7 locations. One nondeterministic module has affine ranking function \old(n) and consists of 9 locations. 4 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.9s and 6 iterations. TraceHistogramMax:6. Analysis of lassos took 7.6s. Construction of modules took 1.1s. Büchi inclusion checks took 3.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 71 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 334 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 318 mSDsluCounter, 829 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 650 mSDsCounter, 189 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1214 IncrementalHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 189 mSolverCounterUnsat, 179 mSDtfsCounter, 1214 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI2 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq177 hnf95 smp62 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-27 20:13:03,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-27 20:13:03,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-27 20:13:03,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-27 20:13:03,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-27 20:13:04,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-27 20:13:04,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-27 20:13:04,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d764394-a4de-44d7-bcd0-a110db5a4f96/bin/uautomizer-verify-aQ6SnzHsRB/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