./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22d9a6832a4080412e38f5d573b63985f3b10b3c2009b6559595c7c0bbda414f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:26:54,640 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:26:54,737 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-13 13:26:54,747 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:26:54,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:26:54,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:26:54,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:26:54,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:26:54,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:26:54,775 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:26:54,777 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:26:54,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:26:54,777 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:26:54,777 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 13:26:54,777 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 13:26:54,777 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 13:26:54,777 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 13:26:54,778 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 13:26:54,778 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 13:26:54,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:26:54,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 13:26:54,778 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:26:54,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:26:54,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:26:54,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:26:54,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 13:26:54,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 13:26:54,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 13:26:54,780 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:26:54,780 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:26:54,780 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:26:54,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:26:54,780 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 13:26:54,780 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:26:54,781 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:26:54,781 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:26:54,781 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:26:54,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:26:54,781 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 13:26:54,781 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_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22d9a6832a4080412e38f5d573b63985f3b10b3c2009b6559595c7c0bbda414f [2024-11-13 13:26:55,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:26:55,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:26:55,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:26:55,195 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:26:55,195 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:26:55,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/recursive-simple/fibo_2calls_4-2.c Unable to find full path for "g++" [2024-11-13 13:26:57,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:26:57,620 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:26:57,621 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/sv-benchmarks/c/recursive-simple/fibo_2calls_4-2.c [2024-11-13 13:26:57,644 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/data/85ae0ac7d/f230ea38d6424bd1ade3bbff1a5aecce/FLAGdc612b1d5 [2024-11-13 13:26:57,702 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/data/85ae0ac7d/f230ea38d6424bd1ade3bbff1a5aecce [2024-11-13 13:26:57,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:26:57,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:26:57,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:26:57,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:26:57,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:26:57,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:26:57" (1/1) ... [2024-11-13 13:26:57,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1e6c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:57, skipping insertion in model container [2024-11-13 13:26:57,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:26:57" (1/1) ... [2024-11-13 13:26:57,743 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:26:57,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:26:57,983 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:26:58,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:26:58,026 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:26:58,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58 WrapperNode [2024-11-13 13:26:58,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:26:58,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:26:58,028 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:26:58,028 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:26:58,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (1/1) ... [2024-11-13 13:26:58,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (1/1) ... [2024-11-13 13:26:58,062 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20 [2024-11-13 13:26:58,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:26:58,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:26:58,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:26:58,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:26:58,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (1/1) ... [2024-11-13 13:26:58,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (1/1) ... [2024-11-13 13:26:58,077 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (1/1) ... [2024-11-13 13:26:58,095 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]. [2024-11-13 13:26:58,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (1/1) ... [2024-11-13 13:26:58,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (1/1) ... [2024-11-13 13:26:58,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (1/1) ... [2024-11-13 13:26:58,102 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (1/1) ... [2024-11-13 13:26:58,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (1/1) ... [2024-11-13 13:26:58,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (1/1) ... [2024-11-13 13:26:58,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:26:58,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:26:58,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:26:58,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:26:58,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (1/1) ... [2024-11-13 13:26:58,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:26:58,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:26:58,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:26:58,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 13:26:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:26:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:26:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-11-13 13:26:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-11-13 13:26:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-11-13 13:26:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-11-13 13:26:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:26:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:26:58,263 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:26:58,265 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:26:58,428 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-13 13:26:58,428 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:26:58,440 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:26:58,440 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:26:58,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:26:58 BoogieIcfgContainer [2024-11-13 13:26:58,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:26:58,442 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 13:26:58,442 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 13:26:58,450 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 13:26:58,451 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:26:58,451 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 01:26:57" (1/3) ... [2024-11-13 13:26:58,453 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27d9c54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 01:26:58, skipping insertion in model container [2024-11-13 13:26:58,454 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:26:58,454 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:26:58" (2/3) ... [2024-11-13 13:26:58,454 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27d9c54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 01:26:58, skipping insertion in model container [2024-11-13 13:26:58,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:26:58,456 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:26:58" (3/3) ... [2024-11-13 13:26:58,459 INFO L333 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_4-2.c [2024-11-13 13:26:58,537 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 13:26:58,538 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 13:26:58,539 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 13:26:58,539 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 13:26:58,539 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 13:26:58,540 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 13:26:58,540 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 13:26:58,541 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 13:26:58,551 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) [2024-11-13 13:26:58,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-13 13:26:58,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:26:58,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:26:58,588 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 13:26:58,589 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:26:58,589 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 13:26:58,589 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) [2024-11-13 13:26:58,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-13 13:26:58,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:26:58,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:26:58,594 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 13:26:58,595 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:26:58,606 INFO L745 eck$LassoCheckResult]: Stem: 25#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 13#L39true call main_#t~ret8#1 := fibo1(main_~x~0#1);< 18#$Ultimate##0true [2024-11-13 13:26:58,606 INFO L747 eck$LassoCheckResult]: Loop: 18#$Ultimate##0true ~n := #in~n; 7#L10true assume !(~n < 1); 6#L12true assume !(1 == ~n); 8#L15true call #t~ret4 := fibo2(~n - 1);< 15#$Ultimate##0true ~n := #in~n; 10#L20true assume !(~n < 1); 14#L22true assume !(1 == ~n); 21#L25true call #t~ret6 := fibo1(~n - 1);< 18#$Ultimate##0true [2024-11-13 13:26:58,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:26:58,617 INFO L85 PathProgramCache]: Analyzing trace with hash 29898, now seen corresponding path program 1 times [2024-11-13 13:26:58,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:26:58,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865530949] [2024-11-13 13:26:58,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:26:58,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:26:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:26:58,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:26:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:26:58,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:26:58,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:26:58,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1206117480, now seen corresponding path program 1 times [2024-11-13 13:26:58,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:26:58,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977645586] [2024-11-13 13:26:58,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:26:58,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:26:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:26:58,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:26:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:26:58,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:26:58,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:26:58,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1276411855, now seen corresponding path program 1 times [2024-11-13 13:26:58,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:26:58,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360011937] [2024-11-13 13:26:58,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:26:58,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:26:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:26:58,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:26:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:26:58,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:26:59,135 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:26:59,136 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:26:59,137 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:26:59,137 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:26:59,137 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 13:26:59,137 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:26:59,137 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:26:59,138 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:26:59,138 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration1_Loop [2024-11-13 13:26:59,138 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:26:59,138 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:26:59,154 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,171 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,177 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,193 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,197 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,330 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:26:59,331 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 13:26:59,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:26:59,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:26:59,336 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:26:59,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 13:26:59,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:26:59,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:26:59,364 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:26:59,364 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:26:59,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-11-13 13:26:59,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:26:59,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:26:59,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:26:59,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 13:26:59,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:26:59,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:26:59,417 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:26:59,417 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:26:59,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-13 13:26:59,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:26:59,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:26:59,439 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:26:59,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 13:26:59,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:26:59,443 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:26:59,460 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:26:59,461 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:26:59,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-13 13:26:59,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:26:59,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:26:59,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:26:59,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 13:26:59,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:26:59,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:26:59,507 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:26:59,507 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:26:59,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-13 13:26:59,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:26:59,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:26:59,528 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:26:59,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 13:26:59,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:26:59,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:26:59,551 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:26:59,551 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:26:59,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-13 13:26:59,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:26:59,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:26:59,574 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:26:59,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 13:26:59,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:26:59,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:26:59,642 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:26:59,643 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:26:59,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-13 13:26:59,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:26:59,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:26:59,666 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:26:59,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 13:26:59,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:26:59,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:26:59,694 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:26:59,694 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:26:59,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-13 13:26:59,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:26:59,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:26:59,716 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:26:59,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 13:26:59,720 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:26:59,720 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:26:59,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-13 13:26:59,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:26:59,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:26:59,763 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:26:59,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-13 13:26:59,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:26:59,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:26:59,872 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 13:26:59,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-13 13:26:59,877 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:26:59,878 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:26:59,878 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:26:59,878 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:26:59,878 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 13:26:59,878 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:26:59,878 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:26:59,878 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:26:59,878 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration1_Loop [2024-11-13 13:26:59,878 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:26:59,878 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:26:59,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,891 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,899 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:26:59,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:00,014 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:27:00,020 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 13:27:00,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:00,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:00,024 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:00,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-13 13:27:00,028 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 [2024-11-13 13:27:00,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:00,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:00,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:00,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:00,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:00,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:00,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:00,055 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:00,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-13 13:27:00,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:00,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:00,079 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:00,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-13 13:27:00,084 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 [2024-11-13 13:27:00,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:00,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:00,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:00,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:00,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:00,102 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:00,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:00,107 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:00,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:00,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:00,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:00,130 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:00,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-13 13:27:00,133 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 [2024-11-13 13:27:00,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:00,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:00,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:00,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:00,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:00,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:00,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:00,154 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:00,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-13 13:27:00,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:00,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:00,180 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:00,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-13 13:27:00,184 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 [2024-11-13 13:27:00,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:00,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:00,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:00,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:00,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:00,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:00,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:00,200 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:00,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:00,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:00,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:00,223 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:00,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-13 13:27:00,225 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 [2024-11-13 13:27:00,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:00,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:00,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:00,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:00,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:00,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:00,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:00,241 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:00,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-13 13:27:00,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:00,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:00,264 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:00,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-13 13:27:00,266 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 [2024-11-13 13:27:00,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:00,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:00,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:00,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:00,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:00,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:00,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:00,287 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 13:27:00,293 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 13:27:00,296 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 13:27:00,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:00,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:00,302 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:00,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-13 13:27:00,309 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 13:27:00,309 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 13:27:00,309 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 13:27:00,310 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2024-11-13 13:27:00,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-13 13:27:00,335 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 13:27:00,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:00,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:27:00,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:00,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 13:27:00,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:00,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:00,625 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 [2024-11-13 13:27:00,628 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) [2024-11-13 13:27:00,891 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. [2024-11-13 13:27:00,893 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 [2024-11-13 13:27:00,900 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) [2024-11-13 13:27:00,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 19 transitions. [2024-11-13 13:27:00,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-13 13:27:00,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:00,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2024-11-13 13:27:00,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:00,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 3 letters. Loop has 16 letters. [2024-11-13 13:27:00,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:00,921 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 107 transitions. [2024-11-13 13:27:00,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-13 13:27:00,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 55 states and 75 transitions. [2024-11-13 13:27:00,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2024-11-13 13:27:00,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-11-13 13:27:00,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 75 transitions. [2024-11-13 13:27:00,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:27:00,941 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 75 transitions. [2024-11-13 13:27:00,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 75 transitions. [2024-11-13 13:27:00,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2024-11-13 13:27:00,978 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) [2024-11-13 13:27:00,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2024-11-13 13:27:00,984 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-11-13 13:27:00,984 INFO L424 stractBuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-11-13 13:27:00,985 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 13:27:00,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 72 transitions. [2024-11-13 13:27:00,986 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-13 13:27:00,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:27:00,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:27:00,989 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:00,989 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:00,990 INFO L745 eck$LassoCheckResult]: Stem: 232#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 219#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 214#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 213#$Ultimate##0 ~n := #in~n; 215#L10 assume !(~n < 1); 225#L12 assume !(1 == ~n); 208#L15 call #t~ret4 := fibo2(~n - 1);< 230#$Ultimate##0 ~n := #in~n; 235#L20 assume !(~n < 1); 236#L22 assume !(1 == ~n); 200#L25 call #t~ret6 := fibo1(~n - 1);< 216#$Ultimate##0 ~n := #in~n; 217#L10 assume ~n < 1;#res := 0; 205#fibo1FINAL assume true; 206#fibo1EXIT >#48#return; 207#L25-1 [2024-11-13 13:27:00,990 INFO L747 eck$LassoCheckResult]: Loop: 207#L25-1 call #t~ret7 := fibo1(~n - 2);< 212#$Ultimate##0 ~n := #in~n; 237#L10 assume !(~n < 1); 238#L12 assume !(1 == ~n); 210#L15 call #t~ret4 := fibo2(~n - 1);< 241#$Ultimate##0 ~n := #in~n; 240#L20 assume !(~n < 1); 239#L22 assume !(1 == ~n); 220#L25 call #t~ret6 := fibo1(~n - 1);< 212#$Ultimate##0 ~n := #in~n; 237#L10 assume ~n < 1;#res := 0; 233#fibo1FINAL assume true; 234#fibo1EXIT >#48#return; 207#L25-1 [2024-11-13 13:27:00,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:00,991 INFO L85 PathProgramCache]: Analyzing trace with hash -722660232, now seen corresponding path program 1 times [2024-11-13 13:27:00,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:00,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279124178] [2024-11-13 13:27:00,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:00,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:01,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 13:27:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:01,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 13:27:01,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:01,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279124178] [2024-11-13 13:27:01,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279124178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:27:01,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:27:01,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:27:01,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727750979] [2024-11-13 13:27:01,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:01,255 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 13:27:01,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:01,256 INFO L85 PathProgramCache]: Analyzing trace with hash -880179458, now seen corresponding path program 1 times [2024-11-13 13:27:01,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:01,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634834410] [2024-11-13 13:27:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:01,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:01,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 13:27:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:01,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 13:27:01,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:01,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634834410] [2024-11-13 13:27:01,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634834410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:27:01,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:27:01,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:27:01,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177327094] [2024-11-13 13:27:01,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:27:01,383 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 13:27:01,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:01,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:27:01,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:27:01,387 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. cyclomatic complexity: 20 Second operand has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 13:27:01,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-13 13:27:01,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:01,518 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2024-11-13 13:27:01,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2024-11-13 13:27:01,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-13 13:27:01,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 60 states and 79 transitions. [2024-11-13 13:27:01,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-13 13:27:01,530 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-11-13 13:27:01,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 79 transitions. [2024-11-13 13:27:01,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:27:01,530 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-13 13:27:01,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 79 transitions. [2024-11-13 13:27:01,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-13 13:27:01,540 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) [2024-11-13 13:27:01,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 79 transitions. [2024-11-13 13:27:01,545 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-13 13:27:01,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:27:01,547 INFO L424 stractBuchiCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-13 13:27:01,548 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 13:27:01,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 79 transitions. [2024-11-13 13:27:01,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-13 13:27:01,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:27:01,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:27:01,554 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:01,554 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:01,554 INFO L745 eck$LassoCheckResult]: Stem: 370#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 352#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 353#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 354#$Ultimate##0 ~n := #in~n; 355#L10 assume !(~n < 1); 390#L12 assume !(1 == ~n); 346#L15 call #t~ret4 := fibo2(~n - 1);< 369#$Ultimate##0 ~n := #in~n; 376#L20 assume !(~n < 1); 377#L22 assume !(1 == ~n); 337#L25 call #t~ret6 := fibo1(~n - 1);< 356#$Ultimate##0 ~n := #in~n; 357#L10 assume !(~n < 1); 366#L12 assume 1 == ~n;#res := 1; 378#fibo1FINAL assume true; 374#fibo1EXIT >#48#return; 343#L25-1 [2024-11-13 13:27:01,554 INFO L747 eck$LassoCheckResult]: Loop: 343#L25-1 call #t~ret7 := fibo1(~n - 2);< 350#$Ultimate##0 ~n := #in~n; 379#L10 assume !(~n < 1); 360#L12 assume !(1 == ~n); 348#L15 call #t~ret4 := fibo2(~n - 1);< 383#$Ultimate##0 ~n := #in~n; 382#L20 assume !(~n < 1); 380#L22 assume !(1 == ~n); 344#L25 call #t~ret6 := fibo1(~n - 1);< 350#$Ultimate##0 ~n := #in~n; 379#L10 assume !(~n < 1); 360#L12 assume 1 == ~n;#res := 1; 361#fibo1FINAL assume true; 373#fibo1EXIT >#48#return; 343#L25-1 [2024-11-13 13:27:01,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:01,555 INFO L85 PathProgramCache]: Analyzing trace with hash -927605802, now seen corresponding path program 1 times [2024-11-13 13:27:01,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:01,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709280169] [2024-11-13 13:27:01,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:01,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:01,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 13:27:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:01,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:01,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709280169] [2024-11-13 13:27:01,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709280169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:01,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474333977] [2024-11-13 13:27:01,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:01,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:01,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:01,785 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:01,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 13:27:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:01,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:27:01,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:01,920 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:27:02,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:02,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474333977] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:27:02,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:27:02,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 10 [2024-11-13 13:27:02,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050440897] [2024-11-13 13:27:02,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:27:02,092 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 13:27:02,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:02,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1515734512, now seen corresponding path program 1 times [2024-11-13 13:27:02,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:02,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555183602] [2024-11-13 13:27:02,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:02,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:27:02,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:27:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:27:02,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:27:02,391 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:27:02,391 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:27:02,391 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:27:02,391 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:27:02,391 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 13:27:02,392 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:02,392 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:27:02,392 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:27:02,392 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration3_Loop [2024-11-13 13:27:02,392 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:27:02,392 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:27:02,393 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,422 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,496 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:27:02,496 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 13:27:02,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:02,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:02,499 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:02,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-13 13:27:02,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:02,504 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:02,526 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:02,527 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=2} Honda state: {fibo2_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:02,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:02,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:02,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:02,549 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:02,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:02,551 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:02,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-13 13:27:02,571 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:02,572 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:02,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-13 13:27:02,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:02,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:02,592 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:02,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-13 13:27:02,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:02,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:02,609 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:02,609 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:02,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-13 13:27:02,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:02,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:02,627 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:02,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-13 13:27:02,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:02,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:02,643 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:02,643 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:02,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-13 13:27:02,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:02,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:02,658 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:02,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-13 13:27:02,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:02,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:02,681 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:02,681 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:02,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-13 13:27:02,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:02,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:02,705 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:02,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-13 13:27:02,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:02,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:02,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-13 13:27:02,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:02,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:02,744 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:02,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-13 13:27:02,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:27:02,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:02,763 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 13:27:02,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-13 13:27:02,783 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:27:02,783 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:27:02,783 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:27:02,783 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:27:02,783 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 13:27:02,783 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:02,783 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:27:02,783 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:27:02,783 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration3_Loop [2024-11-13 13:27:02,783 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:27:02,783 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:27:02,785 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,796 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,799 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,823 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,826 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,829 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:02,895 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:27:02,895 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 13:27:02,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:02,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:02,897 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:02,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-13 13:27:02,904 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 [2024-11-13 13:27:02,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:02,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:02,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:02,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:02,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:02,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:02,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:02,925 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:02,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:02,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:02,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:02,948 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:02,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-13 13:27:02,951 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 [2024-11-13 13:27:02,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:02,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:02,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:02,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:02,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:02,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:02,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:02,969 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:02,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-13 13:27:02,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:02,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:02,992 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:02,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-13 13:27:02,996 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 [2024-11-13 13:27:03,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:03,012 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:03,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:03,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:03,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:03,013 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:03,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:03,016 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:03,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-13 13:27:03,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:03,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:03,039 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:03,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-13 13:27:03,041 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 [2024-11-13 13:27:03,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:03,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:03,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:03,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:03,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:03,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:03,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:03,056 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:03,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-13 13:27:03,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:03,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:03,071 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:03,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-13 13:27:03,072 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 [2024-11-13 13:27:03,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:03,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:03,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:03,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:03,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:03,086 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:03,086 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:03,089 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 13:27:03,093 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 13:27:03,094 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 13:27:03,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:03,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:03,097 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:03,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-13 13:27:03,099 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 13:27:03,099 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 13:27:03,100 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 13:27:03,100 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_~n) = 1*fibo2_~n Supporting invariants [] [2024-11-13 13:27:03,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-13 13:27:03,121 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 13:27:03,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:03,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:27:03,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:03,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:27:03,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:03,538 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2024-11-13 13:27:03,538 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 79 transitions. cyclomatic complexity: 21 Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 13:27:04,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-13 13:27:04,225 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 79 transitions. cyclomatic complexity: 21. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 206 states and 282 transitions. Complement of second has 48 states. [2024-11-13 13:27:04,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 2 stem states 11 non-accepting loop states 1 accepting loop states [2024-11-13 13:27:04,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 13:27:04,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 79 transitions. [2024-11-13 13:27:04,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 79 transitions. Stem has 16 letters. Loop has 14 letters. [2024-11-13 13:27:04,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:04,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 79 transitions. Stem has 30 letters. Loop has 14 letters. [2024-11-13 13:27:04,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:04,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 79 transitions. Stem has 16 letters. Loop has 28 letters. [2024-11-13 13:27:04,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:04,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 282 transitions. [2024-11-13 13:27:04,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-11-13 13:27:04,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 182 states and 254 transitions. [2024-11-13 13:27:04,244 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 112 [2024-11-13 13:27:04,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2024-11-13 13:27:04,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 254 transitions. [2024-11-13 13:27:04,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:27:04,246 INFO L218 hiAutomatonCegarLoop]: Abstraction has 182 states and 254 transitions. [2024-11-13 13:27:04,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 254 transitions. [2024-11-13 13:27:04,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 154. [2024-11-13 13:27:04,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 96 states have (on average 1.28125) internal successors, (123), 104 states have internal predecessors, (123), 35 states have call successors, (36), 19 states have call predecessors, (36), 23 states have return successors, (52), 30 states have call predecessors, (52), 33 states have call successors, (52) [2024-11-13 13:27:04,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 211 transitions. [2024-11-13 13:27:04,265 INFO L240 hiAutomatonCegarLoop]: Abstraction has 154 states and 211 transitions. [2024-11-13 13:27:04,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:04,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:27:04,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:27:04,265 INFO L87 Difference]: Start difference. First operand 154 states and 211 transitions. Second operand has 11 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 13:27:04,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:04,470 INFO L93 Difference]: Finished difference Result 183 states and 249 transitions. [2024-11-13 13:27:04,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 249 transitions. [2024-11-13 13:27:04,475 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-11-13 13:27:04,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 180 states and 245 transitions. [2024-11-13 13:27:04,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 117 [2024-11-13 13:27:04,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 117 [2024-11-13 13:27:04,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 180 states and 245 transitions. [2024-11-13 13:27:04,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:27:04,480 INFO L218 hiAutomatonCegarLoop]: Abstraction has 180 states and 245 transitions. [2024-11-13 13:27:04,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states and 245 transitions. [2024-11-13 13:27:04,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 165. [2024-11-13 13:27:04,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 102 states have (on average 1.2647058823529411) internal successors, (129), 111 states have internal predecessors, (129), 38 states have call successors, (40), 20 states have call predecessors, (40), 25 states have return successors, (58), 33 states have call predecessors, (58), 36 states have call successors, (58) [2024-11-13 13:27:04,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 227 transitions. [2024-11-13 13:27:04,496 INFO L240 hiAutomatonCegarLoop]: Abstraction has 165 states and 227 transitions. [2024-11-13 13:27:04,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:27:04,497 INFO L424 stractBuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2024-11-13 13:27:04,497 INFO L331 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-13 13:27:04,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 227 transitions. [2024-11-13 13:27:04,500 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2024-11-13 13:27:04,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:27:04,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:27:04,501 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:04,501 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:04,502 INFO L745 eck$LassoCheckResult]: Stem: 1277#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 1252#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 1253#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 1282#$Ultimate##0 ~n := #in~n; 1272#L10 assume !(~n < 1); 1269#L12 assume !(1 == ~n); 1243#L15 call #t~ret4 := fibo2(~n - 1);< 1275#$Ultimate##0 ~n := #in~n; 1376#L20 assume !(~n < 1); 1375#L22 assume !(1 == ~n); 1256#L25 call #t~ret6 := fibo1(~n - 1);< 1255#$Ultimate##0 ~n := #in~n; 1257#L10 assume !(~n < 1); 1318#L12 assume !(1 == ~n); 1319#L15 call #t~ret4 := fibo2(~n - 1);< 1327#$Ultimate##0 ~n := #in~n; 1331#L20 assume ~n < 1;#res := 0; 1330#fibo2FINAL assume true; 1326#fibo2EXIT >#52#return; 1323#L15-1 call #t~ret5 := fibo2(~n - 2);< 1324#$Ultimate##0 ~n := #in~n; 1328#L20 assume ~n < 1;#res := 0; 1325#fibo2FINAL assume true; 1322#fibo2EXIT >#54#return; 1320#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 1321#fibo1FINAL assume true; 1378#fibo1EXIT >#48#return; 1273#L25-1 call #t~ret7 := fibo1(~n - 2);< 1310#$Ultimate##0 ~n := #in~n; 1382#L10 assume ~n < 1;#res := 0; 1381#fibo1FINAL assume true; 1372#fibo1EXIT >#50#return; 1259#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 1260#fibo2FINAL assume true; 1270#fibo2EXIT >#52#return; 1220#L15-1 call #t~ret5 := fibo2(~n - 2);< 1334#$Ultimate##0 [2024-11-13 13:27:04,502 INFO L747 eck$LassoCheckResult]: Loop: 1334#$Ultimate##0 ~n := #in~n; 1333#L20 assume !(~n < 1); 1219#L22 assume !(1 == ~n); 1224#L25 call #t~ret6 := fibo1(~n - 1);< 1244#$Ultimate##0 ~n := #in~n; 1254#L10 assume !(~n < 1); 1267#L12 assume !(1 == ~n); 1222#L15 call #t~ret4 := fibo2(~n - 1);< 1334#$Ultimate##0 [2024-11-13 13:27:04,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:04,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1873386980, now seen corresponding path program 1 times [2024-11-13 13:27:04,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:04,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857107977] [2024-11-13 13:27:04,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:04,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:04,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:27:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:04,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:04,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:04,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 13:27:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:04,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 13:27:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:04,724 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 13:27:04,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:04,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857107977] [2024-11-13 13:27:04,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857107977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:04,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292972638] [2024-11-13 13:27:04,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:04,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:04,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:04,727 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:04,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-13 13:27:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:04,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 13:27:04,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:04,946 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 13:27:04,947 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:27:05,432 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:27:05,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292972638] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:27:05,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:27:05,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 11] total 16 [2024-11-13 13:27:05,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372859153] [2024-11-13 13:27:05,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:27:05,434 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 13:27:05,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:05,435 INFO L85 PathProgramCache]: Analyzing trace with hash 996300776, now seen corresponding path program 2 times [2024-11-13 13:27:05,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:05,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069764281] [2024-11-13 13:27:05,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:05,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:27:05,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:27:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:27:05,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:27:05,597 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:27:05,597 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:27:05,597 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:27:05,598 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:27:05,598 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 13:27:05,598 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:05,598 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:27:05,598 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:27:05,598 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration4_Loop [2024-11-13 13:27:05,598 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:27:05,598 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:27:05,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,605 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,608 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,611 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,629 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,688 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:27:05,688 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 13:27:05,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:05,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:05,693 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:05,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-13 13:27:05,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:05,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:05,719 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:05,719 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:05,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:05,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:05,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:05,742 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:05,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-13 13:27:05,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:05,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:05,758 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:05,759 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:05,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-13 13:27:05,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:05,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:05,774 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:05,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-13 13:27:05,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:05,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:05,789 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:05,789 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:05,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-11-13 13:27:05,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:05,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:05,805 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:05,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-13 13:27:05,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:05,806 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:05,820 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:05,820 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:05,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-13 13:27:05,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:05,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:05,837 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:05,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-13 13:27:05,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:05,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:05,857 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:05,857 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:05,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-13 13:27:05,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:05,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:05,873 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:05,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-13 13:27:05,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:05,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:05,889 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:05,890 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:05,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-13 13:27:05,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:05,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:05,905 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:05,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-13 13:27:05,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:05,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:05,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-13 13:27:05,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:05,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:05,941 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:05,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-13 13:27:05,943 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:27:05,943 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:05,977 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 13:27:05,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-11-13 13:27:05,980 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:27:05,980 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:27:05,980 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:27:05,980 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:27:05,980 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 13:27:05,980 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:05,980 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:27:05,980 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:27:05,980 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration4_Loop [2024-11-13 13:27:05,980 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:27:05,980 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:27:05,981 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,987 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,989 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,993 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:05,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:06,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:06,060 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:27:06,060 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 13:27:06,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:06,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:06,063 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:06,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-13 13:27:06,065 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 [2024-11-13 13:27:06,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:06,080 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:06,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:06,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:06,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:06,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:06,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:06,084 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:06,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-13 13:27:06,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:06,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:06,107 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:06,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-13 13:27:06,109 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 [2024-11-13 13:27:06,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:06,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:06,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:06,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:06,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:06,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:06,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:06,123 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:06,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-13 13:27:06,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:06,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:06,137 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:06,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-13 13:27:06,139 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 [2024-11-13 13:27:06,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:06,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:06,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:06,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:06,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:06,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:06,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:06,154 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:06,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-13 13:27:06,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:06,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:06,170 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:06,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-13 13:27:06,171 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 [2024-11-13 13:27:06,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:06,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:06,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:06,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:06,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:06,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:06,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:06,187 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:06,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:06,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:06,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:06,202 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:06,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-13 13:27:06,203 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 [2024-11-13 13:27:06,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:06,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:06,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:06,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:06,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:06,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:06,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:06,219 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:06,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-11-13 13:27:06,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:06,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:06,233 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:06,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-13 13:27:06,235 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 [2024-11-13 13:27:06,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:06,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:06,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:06,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:06,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:06,249 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:06,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:06,250 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:06,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-11-13 13:27:06,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:06,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:06,266 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:06,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-13 13:27:06,267 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 [2024-11-13 13:27:06,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:06,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:06,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:06,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:06,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:06,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:06,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:06,286 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 13:27:06,290 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 13:27:06,290 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 13:27:06,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:06,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:06,292 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:06,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-13 13:27:06,293 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 13:27:06,294 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 13:27:06,294 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 13:27:06,294 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2024-11-13 13:27:06,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-13 13:27:06,309 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 13:27:06,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:06,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:27:06,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:06,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-11-13 13:27:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:06,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 13:27:06,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:06,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:06,917 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 [2024-11-13 13:27:06,917 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67 Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:27:07,142 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 658 states and 934 transitions. Complement of second has 30 states. [2024-11-13 13:27:07,143 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 [2024-11-13 13:27:07,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:27:07,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2024-11-13 13:27:07,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 36 letters. Loop has 8 letters. [2024-11-13 13:27:07,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:07,145 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 13:27:07,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:07,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:27:07,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:07,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 13:27:07,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:07,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:07,730 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 [2024-11-13 13:27:07,730 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67 Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:27:07,987 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 658 states and 934 transitions. Complement of second has 30 states. [2024-11-13 13:27:07,989 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 [2024-11-13 13:27:07,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:27:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2024-11-13 13:27:07,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 36 letters. Loop has 8 letters. [2024-11-13 13:27:07,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:07,991 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 13:27:08,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:08,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:27:08,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:08,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 13:27:08,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:08,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:08,527 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2024-11-13 13:27:08,527 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67 Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:27:08,756 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 165 states and 227 transitions. cyclomatic complexity: 67. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 538 states and 752 transitions. Complement of second has 29 states. [2024-11-13 13:27:08,757 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 [2024-11-13 13:27:08,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 13:27:08,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2024-11-13 13:27:08,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 36 letters. Loop has 8 letters. [2024-11-13 13:27:08,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:08,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 44 letters. Loop has 8 letters. [2024-11-13 13:27:08,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:08,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 36 letters. Loop has 16 letters. [2024-11-13 13:27:08,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:08,761 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 538 states and 752 transitions. [2024-11-13 13:27:08,774 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2024-11-13 13:27:08,797 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 538 states to 437 states and 632 transitions. [2024-11-13 13:27:08,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 187 [2024-11-13 13:27:08,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 218 [2024-11-13 13:27:08,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 437 states and 632 transitions. [2024-11-13 13:27:08,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:27:08,802 INFO L218 hiAutomatonCegarLoop]: Abstraction has 437 states and 632 transitions. [2024-11-13 13:27:08,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states and 632 transitions. [2024-11-13 13:27:08,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 366. [2024-11-13 13:27:08,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 244 states have (on average 1.2868852459016393) internal successors, (314), 265 states have internal predecessors, (314), 71 states have call successors, (74), 55 states have call predecessors, (74), 51 states have return successors, (118), 45 states have call predecessors, (118), 69 states have call successors, (118) [2024-11-13 13:27:08,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 506 transitions. [2024-11-13 13:27:08,861 INFO L240 hiAutomatonCegarLoop]: Abstraction has 366 states and 506 transitions. [2024-11-13 13:27:08,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:08,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 13:27:08,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:27:08,863 INFO L87 Difference]: Start difference. First operand 366 states and 506 transitions. Second operand has 16 states, 14 states have (on average 3.142857142857143) internal successors, (44), 15 states have internal predecessors, (44), 11 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (12), 3 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-13 13:27:09,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:09,250 INFO L93 Difference]: Finished difference Result 437 states and 627 transitions. [2024-11-13 13:27:09,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 437 states and 627 transitions. [2024-11-13 13:27:09,258 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2024-11-13 13:27:09,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 437 states to 398 states and 583 transitions. [2024-11-13 13:27:09,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 216 [2024-11-13 13:27:09,267 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 217 [2024-11-13 13:27:09,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 583 transitions. [2024-11-13 13:27:09,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:27:09,268 INFO L218 hiAutomatonCegarLoop]: Abstraction has 398 states and 583 transitions. [2024-11-13 13:27:09,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 583 transitions. [2024-11-13 13:27:09,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 361. [2024-11-13 13:27:09,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 234 states have (on average 1.2393162393162394) internal successors, (290), 263 states have internal predecessors, (290), 74 states have call successors, (77), 50 states have call predecessors, (77), 53 states have return successors, (138), 47 states have call predecessors, (138), 72 states have call successors, (138) [2024-11-13 13:27:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 505 transitions. [2024-11-13 13:27:09,296 INFO L240 hiAutomatonCegarLoop]: Abstraction has 361 states and 505 transitions. [2024-11-13 13:27:09,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 13:27:09,297 INFO L424 stractBuchiCegarLoop]: Abstraction has 361 states and 505 transitions. [2024-11-13 13:27:09,300 INFO L331 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-13 13:27:09,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 505 transitions. [2024-11-13 13:27:09,304 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2024-11-13 13:27:09,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:27:09,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:27:09,307 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:09,308 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] [2024-11-13 13:27:09,309 INFO L745 eck$LassoCheckResult]: Stem: 4958#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 4917#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 4918#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 4960#$Ultimate##0 ~n := #in~n; 5020#L10 assume !(~n < 1); 5019#L12 assume !(1 == ~n); 5007#L15 call #t~ret4 := fibo2(~n - 1);< 5017#$Ultimate##0 ~n := #in~n; 5016#L20 assume !(~n < 1); 5013#L22 assume !(1 == ~n); 4927#L25 call #t~ret6 := fibo1(~n - 1);< 5008#$Ultimate##0 ~n := #in~n; 5014#L10 assume !(~n < 1); 5100#L12 assume !(1 == ~n); 5088#L15 call #t~ret4 := fibo2(~n - 1);< 5113#$Ultimate##0 ~n := #in~n; 5116#L20 assume !(~n < 1); 5115#L22 assume 1 == ~n;#res := 1; 5114#fibo2FINAL assume true; 5112#fibo2EXIT >#52#return; 4926#L15-1 call #t~ret5 := fibo2(~n - 2);< 4930#$Ultimate##0 ~n := #in~n; 5107#L20 assume ~n < 1;#res := 0; 5104#fibo2FINAL assume true; 5101#fibo2EXIT >#54#return; 5099#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5097#fibo1FINAL assume true; 5095#fibo1EXIT >#48#return; 5080#L25-1 call #t~ret7 := fibo1(~n - 2);< 5092#$Ultimate##0 ~n := #in~n; 5178#L10 assume ~n < 1;#res := 0; 5174#fibo1FINAL assume true; 5131#fibo1EXIT >#50#return; 5130#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 5129#fibo2FINAL assume true; 5128#fibo2EXIT >#52#return; 4889#L15-1 call #t~ret5 := fibo2(~n - 2);< 5082#$Ultimate##0 [2024-11-13 13:27:09,309 INFO L747 eck$LassoCheckResult]: Loop: 5082#$Ultimate##0 ~n := #in~n; 4899#L20 assume !(~n < 1); 4885#L22 assume !(1 == ~n); 4891#L25 call #t~ret6 := fibo1(~n - 1);< 5109#$Ultimate##0 ~n := #in~n; 5105#L10 assume !(~n < 1); 5106#L12 assume !(1 == ~n); 4890#L15 call #t~ret4 := fibo2(~n - 1);< 4897#$Ultimate##0 ~n := #in~n; 4899#L20 assume !(~n < 1); 4885#L22 assume !(1 == ~n); 4891#L25 call #t~ret6 := fibo1(~n - 1);< 5109#$Ultimate##0 ~n := #in~n; 5105#L10 assume !(~n < 1); 5106#L12 assume !(1 == ~n); 4890#L15 call #t~ret4 := fibo2(~n - 1);< 4897#$Ultimate##0 ~n := #in~n; 4898#L20 assume !(~n < 1); 5208#L22 assume 1 == ~n;#res := 1; 5150#fibo2FINAL assume true; 5148#fibo2EXIT >#52#return; 4886#L15-1 call #t~ret5 := fibo2(~n - 2);< 5082#$Ultimate##0 ~n := #in~n; 5083#L20 assume ~n < 1;#res := 0; 5207#fibo2FINAL assume true; 5145#fibo2EXIT >#54#return; 5123#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5141#fibo1FINAL assume true; 5138#fibo1EXIT >#48#return; 5134#L25-1 call #t~ret7 := fibo1(~n - 2);< 5140#$Ultimate##0 ~n := #in~n; 5159#L10 assume !(~n < 1); 5158#L12 assume !(1 == ~n); 5121#L15 call #t~ret4 := fibo2(~n - 1);< 5149#$Ultimate##0 ~n := #in~n; 5162#L20 assume !(~n < 1); 5160#L22 assume 1 == ~n;#res := 1; 5071#fibo2FINAL assume true; 5147#fibo2EXIT >#52#return; 4886#L15-1 call #t~ret5 := fibo2(~n - 2);< 5082#$Ultimate##0 ~n := #in~n; 5083#L20 assume ~n < 1;#res := 0; 5207#fibo2FINAL assume true; 5145#fibo2EXIT >#54#return; 5123#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5141#fibo1FINAL assume true; 5138#fibo1EXIT >#50#return; 5137#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 5173#fibo2FINAL assume true; 5120#fibo2EXIT >#52#return; 4886#L15-1 call #t~ret5 := fibo2(~n - 2);< 5082#$Ultimate##0 [2024-11-13 13:27:09,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:09,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1302122831, now seen corresponding path program 1 times [2024-11-13 13:27:09,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:09,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200087328] [2024-11-13 13:27:09,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:09,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:09,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:27:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:09,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:09,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:09,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:27:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:09,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 13:27:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:09,629 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 13:27:09,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:09,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200087328] [2024-11-13 13:27:09,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200087328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:09,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404842365] [2024-11-13 13:27:09,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:09,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:09,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:09,633 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:09,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-13 13:27:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:09,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:27:09,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 13:27:09,781 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:27:10,042 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 13:27:10,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404842365] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:27:10,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:27:10,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 16 [2024-11-13 13:27:10,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295133310] [2024-11-13 13:27:10,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:27:10,044 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 13:27:10,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:10,044 INFO L85 PathProgramCache]: Analyzing trace with hash 592500779, now seen corresponding path program 1 times [2024-11-13 13:27:10,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:10,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115413399] [2024-11-13 13:27:10,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:10,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:10,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 13:27:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:10,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:10,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:10,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:27:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:10,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 13:27:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:10,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:10,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:27:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 13:27:10,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:10,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115413399] [2024-11-13 13:27:10,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115413399] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:10,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683118569] [2024-11-13 13:27:10,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:10,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:10,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:10,449 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:10,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-13 13:27:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:10,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 13:27:10,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:10,636 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:27:10,636 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:27:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:27:11,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683118569] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:27:11,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:27:11,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-11-13 13:27:11,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289466395] [2024-11-13 13:27:11,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:27:11,182 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 13:27:11,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:11,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 13:27:11,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:27:11,183 INFO L87 Difference]: Start difference. First operand 361 states and 505 transitions. cyclomatic complexity: 151 Second operand has 16 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 14 states have internal predecessors, (37), 8 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-13 13:27:11,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:11,412 INFO L93 Difference]: Finished difference Result 404 states and 595 transitions. [2024-11-13 13:27:11,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 404 states and 595 transitions. [2024-11-13 13:27:11,419 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2024-11-13 13:27:11,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 404 states to 404 states and 595 transitions. [2024-11-13 13:27:11,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 221 [2024-11-13 13:27:11,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 221 [2024-11-13 13:27:11,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 404 states and 595 transitions. [2024-11-13 13:27:11,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:27:11,430 INFO L218 hiAutomatonCegarLoop]: Abstraction has 404 states and 595 transitions. [2024-11-13 13:27:11,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states and 595 transitions. [2024-11-13 13:27:11,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 369. [2024-11-13 13:27:11,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 238 states have (on average 1.2352941176470589) internal successors, (294), 269 states have internal predecessors, (294), 75 states have call successors, (78), 50 states have call predecessors, (78), 56 states have return successors, (143), 49 states have call predecessors, (143), 73 states have call successors, (143) [2024-11-13 13:27:11,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 515 transitions. [2024-11-13 13:27:11,457 INFO L240 hiAutomatonCegarLoop]: Abstraction has 369 states and 515 transitions. [2024-11-13 13:27:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 13:27:11,459 INFO L424 stractBuchiCegarLoop]: Abstraction has 369 states and 515 transitions. [2024-11-13 13:27:11,459 INFO L331 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-13 13:27:11,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 369 states and 515 transitions. [2024-11-13 13:27:11,464 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2024-11-13 13:27:11,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:27:11,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:27:11,466 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:11,467 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:11,468 INFO L745 eck$LassoCheckResult]: Stem: 6437#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 6399#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 6400#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 6444#$Ultimate##0 ~n := #in~n; 6492#L10 assume !(~n < 1); 6491#L12 assume !(1 == ~n); 6476#L15 call #t~ret4 := fibo2(~n - 1);< 6489#$Ultimate##0 ~n := #in~n; 6488#L20 assume !(~n < 1); 6480#L22 assume !(1 == ~n); 6403#L25 call #t~ret6 := fibo1(~n - 1);< 6477#$Ultimate##0 ~n := #in~n; 6486#L10 assume !(~n < 1); 6582#L12 assume !(1 == ~n); 6553#L15 call #t~ret4 := fibo2(~n - 1);< 6584#$Ultimate##0 ~n := #in~n; 6590#L20 assume !(~n < 1); 6588#L22 assume 1 == ~n;#res := 1; 6586#fibo2FINAL assume true; 6583#fibo2EXIT >#52#return; 6401#L15-1 call #t~ret5 := fibo2(~n - 2);< 6405#$Ultimate##0 ~n := #in~n; 6592#L20 assume ~n < 1;#res := 0; 6591#fibo2FINAL assume true; 6589#fibo2EXIT >#54#return; 6587#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 6585#fibo1FINAL assume true; 6563#fibo1EXIT >#48#return; 6537#L25-1 call #t~ret7 := fibo1(~n - 2);< 6560#$Ultimate##0 ~n := #in~n; 6633#L10 assume !(~n < 1); 6632#L12 assume 1 == ~n;#res := 1; 6631#fibo1FINAL assume true; 6625#fibo1EXIT >#50#return; 6616#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 6623#fibo2FINAL assume true; 6622#fibo2EXIT >#52#return; 6432#L15-1 call #t~ret5 := fibo2(~n - 2);< 6559#$Ultimate##0 [2024-11-13 13:27:11,468 INFO L747 eck$LassoCheckResult]: Loop: 6559#$Ultimate##0 ~n := #in~n; 6428#L20 assume !(~n < 1); 6434#L22 assume !(1 == ~n); 6567#L25 call #t~ret6 := fibo1(~n - 1);< 6569#$Ultimate##0 ~n := #in~n; 6580#L10 assume !(~n < 1); 6576#L12 assume !(1 == ~n); 6430#L15 call #t~ret4 := fibo2(~n - 1);< 6612#$Ultimate##0 ~n := #in~n; 6630#L20 assume !(~n < 1); 6655#L22 assume 1 == ~n;#res := 1; 6648#fibo2FINAL assume true; 6640#fibo2EXIT >#52#return; 6431#L15-1 call #t~ret5 := fibo2(~n - 2);< 6559#$Ultimate##0 [2024-11-13 13:27:11,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:11,469 INFO L85 PathProgramCache]: Analyzing trace with hash -264197307, now seen corresponding path program 1 times [2024-11-13 13:27:11,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:11,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332794742] [2024-11-13 13:27:11,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:11,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:27:11,482 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:27:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:27:11,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:27:11,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:11,501 INFO L85 PathProgramCache]: Analyzing trace with hash -93894958, now seen corresponding path program 1 times [2024-11-13 13:27:11,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:11,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467596353] [2024-11-13 13:27:11,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:11,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:27:11,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:27:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:27:11,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:27:11,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:11,517 INFO L85 PathProgramCache]: Analyzing trace with hash -387388650, now seen corresponding path program 2 times [2024-11-13 13:27:11,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:11,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108123997] [2024-11-13 13:27:11,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:11,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:11,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 13:27:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:11,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:11,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:11,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:27:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:11,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 13:27:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:11,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 13:27:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:11,786 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 23 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 13:27:11,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:11,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108123997] [2024-11-13 13:27:11,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108123997] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:11,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631640049] [2024-11-13 13:27:11,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:27:11,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:11,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:11,793 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:11,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-13 13:27:11,859 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:27:11,859 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:27:11,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 13:27:11,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:11,939 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-13 13:27:11,939 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:27:12,123 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-13 13:27:12,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631640049] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:27:12,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:27:12,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 13 [2024-11-13 13:27:12,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399133306] [2024-11-13 13:27:12,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:27:12,268 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:27:12,268 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:27:12,269 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:27:12,269 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:27:12,269 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 13:27:12,269 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:12,269 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:27:12,269 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:27:12,269 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration6_Loop [2024-11-13 13:27:12,269 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:27:12,269 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:27:12,270 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,287 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,294 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,329 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:27:12,329 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 13:27:12,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:12,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:12,333 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:12,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-13 13:27:12,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:12,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:12,352 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:12,352 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:12,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-11-13 13:27:12,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:12,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:12,366 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:12,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-13 13:27:12,368 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:12,368 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:12,381 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:12,381 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:12,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-11-13 13:27:12,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:12,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:12,395 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:12,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-13 13:27:12,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:12,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:12,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-11-13 13:27:12,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:12,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:12,425 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:12,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-11-13 13:27:12,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:27:12,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:12,441 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 13:27:12,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2024-11-13 13:27:12,453 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:27:12,453 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:27:12,453 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:27:12,453 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:27:12,453 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 13:27:12,453 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:12,453 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:27:12,453 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:27:12,453 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration6_Loop [2024-11-13 13:27:12,453 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:27:12,453 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:27:12,454 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,456 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,463 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,465 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:12,516 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:27:12,516 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 13:27:12,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:12,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:12,518 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:12,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-13 13:27:12,519 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 [2024-11-13 13:27:12,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:12,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:12,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:12,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:12,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:12,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:12,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:12,533 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:12,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2024-11-13 13:27:12,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:12,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:12,549 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:12,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-11-13 13:27:12,551 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 [2024-11-13 13:27:12,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:12,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:12,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:12,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:12,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:12,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:12,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:12,565 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:12,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-11-13 13:27:12,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:12,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:12,582 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:12,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-13 13:27:12,587 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 [2024-11-13 13:27:12,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:12,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:12,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:12,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:12,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:12,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:12,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:12,609 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 13:27:12,614 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 13:27:12,614 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 13:27:12,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:12,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:12,617 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:12,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-11-13 13:27:12,620 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 13:27:12,620 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 13:27:12,620 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 13:27:12,620 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2024-11-13 13:27:12,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-11-13 13:27:12,641 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 13:27:12,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:12,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:27:12,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:12,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2024-11-13 13:27:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:13,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:27:13,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:13,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:13,298 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2024-11-13 13:27:13,298 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 13:27:13,807 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 1260 states and 1729 transitions. Complement of second has 34 states. [2024-11-13 13:27:13,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2024-11-13 13:27:13,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 13:27:13,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 55 transitions. [2024-11-13 13:27:13,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 55 transitions. Stem has 38 letters. Loop has 14 letters. [2024-11-13 13:27:13,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:13,810 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 13:27:13,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:13,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:27:13,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:14,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:27:14,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:14,362 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 8 loop predicates [2024-11-13 13:27:14,362 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 13:27:14,865 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 1260 states and 1729 transitions. Complement of second has 34 states. [2024-11-13 13:27:14,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2024-11-13 13:27:14,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 13:27:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 55 transitions. [2024-11-13 13:27:14,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 55 transitions. Stem has 38 letters. Loop has 14 letters. [2024-11-13 13:27:14,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:14,868 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-13 13:27:14,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:14,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:27:14,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:15,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:27:15,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:27:15,446 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2024-11-13 13:27:15,446 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 13:27:15,871 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 369 states and 515 transitions. cyclomatic complexity: 153. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 1083 states and 1467 transitions. Complement of second has 37 states. [2024-11-13 13:27:15,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2024-11-13 13:27:15,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-13 13:27:15,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 59 transitions. [2024-11-13 13:27:15,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 59 transitions. Stem has 38 letters. Loop has 14 letters. [2024-11-13 13:27:15,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:15,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 59 transitions. Stem has 52 letters. Loop has 14 letters. [2024-11-13 13:27:15,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:15,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 59 transitions. Stem has 38 letters. Loop has 28 letters. [2024-11-13 13:27:15,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:15,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1083 states and 1467 transitions. [2024-11-13 13:27:15,894 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2024-11-13 13:27:15,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1083 states to 648 states and 953 transitions. [2024-11-13 13:27:15,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2024-11-13 13:27:15,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2024-11-13 13:27:15,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 648 states and 953 transitions. [2024-11-13 13:27:15,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:27:15,909 INFO L218 hiAutomatonCegarLoop]: Abstraction has 648 states and 953 transitions. [2024-11-13 13:27:15,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states and 953 transitions. [2024-11-13 13:27:15,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 507. [2024-11-13 13:27:15,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 325 states have (on average 1.2307692307692308) internal successors, (400), 356 states have internal predecessors, (400), 106 states have call successors, (109), 68 states have call predecessors, (109), 76 states have return successors, (188), 82 states have call predecessors, (188), 104 states have call successors, (188) [2024-11-13 13:27:15,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 697 transitions. [2024-11-13 13:27:15,947 INFO L240 hiAutomatonCegarLoop]: Abstraction has 507 states and 697 transitions. [2024-11-13 13:27:15,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:15,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 13:27:15,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:27:15,948 INFO L87 Difference]: Start difference. First operand 507 states and 697 transitions. Second operand has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 13:27:16,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:16,227 INFO L93 Difference]: Finished difference Result 573 states and 792 transitions. [2024-11-13 13:27:16,228 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 573 states and 792 transitions. [2024-11-13 13:27:16,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2024-11-13 13:27:16,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 573 states to 535 states and 749 transitions. [2024-11-13 13:27:16,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2024-11-13 13:27:16,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2024-11-13 13:27:16,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 535 states and 749 transitions. [2024-11-13 13:27:16,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:27:16,245 INFO L218 hiAutomatonCegarLoop]: Abstraction has 535 states and 749 transitions. [2024-11-13 13:27:16,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states and 749 transitions. [2024-11-13 13:27:16,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 503. [2024-11-13 13:27:16,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 323 states have (on average 1.2321981424148607) internal successors, (398), 354 states have internal predecessors, (398), 105 states have call successors, (107), 68 states have call predecessors, (107), 75 states have return successors, (183), 80 states have call predecessors, (183), 101 states have call successors, (183) [2024-11-13 13:27:16,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 688 transitions. [2024-11-13 13:27:16,268 INFO L240 hiAutomatonCegarLoop]: Abstraction has 503 states and 688 transitions. [2024-11-13 13:27:16,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 13:27:16,269 INFO L424 stractBuchiCegarLoop]: Abstraction has 503 states and 688 transitions. [2024-11-13 13:27:16,269 INFO L331 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-13 13:27:16,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 503 states and 688 transitions. [2024-11-13 13:27:16,273 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2024-11-13 13:27:16,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:27:16,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:27:16,277 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:16,277 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] [2024-11-13 13:27:16,277 INFO L745 eck$LassoCheckResult]: Stem: 12548#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 12513#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 12514#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 12557#$Ultimate##0 ~n := #in~n; 12833#L10 assume !(~n < 1); 12831#L12 assume !(1 == ~n); 12635#L15 call #t~ret4 := fibo2(~n - 1);< 12825#$Ultimate##0 ~n := #in~n; 12822#L20 assume !(~n < 1); 12820#L22 assume !(1 == ~n); 12521#L25 call #t~ret6 := fibo1(~n - 1);< 12636#$Ultimate##0 ~n := #in~n; 12638#L10 assume !(~n < 1); 12788#L12 assume !(1 == ~n); 12572#L15 call #t~ret4 := fibo2(~n - 1);< 12654#$Ultimate##0 ~n := #in~n; 12834#L20 assume !(~n < 1); 12645#L22 assume !(1 == ~n); 12523#L25 call #t~ret6 := fibo1(~n - 1);< 12636#$Ultimate##0 ~n := #in~n; 12638#L10 assume !(~n < 1); 12788#L12 assume !(1 == ~n); 12572#L15 call #t~ret4 := fibo2(~n - 1);< 12654#$Ultimate##0 ~n := #in~n; 12834#L20 assume !(~n < 1); 12645#L22 assume 1 == ~n;#res := 1; 12646#fibo2FINAL assume true; 12688#fibo2EXIT >#52#return; 12578#L15-1 call #t~ret5 := fibo2(~n - 2);< 12657#$Ultimate##0 ~n := #in~n; 12680#L20 assume !(~n < 1); 12813#L22 assume !(1 == ~n); 12811#L25 call #t~ret6 := fibo1(~n - 1);< 12812#$Ultimate##0 ~n := #in~n; 12817#L10 assume !(~n < 1); 12815#L12 assume 1 == ~n;#res := 1; 12814#fibo1FINAL assume true; 12810#fibo1EXIT >#48#return; 12808#L25-1 call #t~ret7 := fibo1(~n - 2);< 12809#$Ultimate##0 ~n := #in~n; 12818#L10 assume ~n < 1;#res := 0; 12816#fibo1FINAL assume true; 12807#fibo1EXIT >#50#return; 12806#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 12805#fibo2FINAL assume true; 12640#fibo2EXIT >#54#return; 12639#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 12634#fibo1FINAL assume true; 12615#fibo1EXIT >#48#return; 12604#L25-1 call #t~ret7 := fibo1(~n - 2);< 12605#$Ultimate##0 ~n := #in~n; 12663#L10 assume !(~n < 1); 12660#L12 assume !(1 == ~n); 12580#L15 call #t~ret4 := fibo2(~n - 1);< 12652#$Ultimate##0 ~n := #in~n; 12695#L20 assume !(~n < 1); 12691#L22 assume 1 == ~n;#res := 1; 12658#fibo2FINAL assume true; 12649#fibo2EXIT >#52#return; 12518#L15-1 call #t~ret5 := fibo2(~n - 2);< 12644#$Ultimate##0 ~n := #in~n; 12802#L20 assume ~n < 1;#res := 0; 12519#fibo2FINAL assume true; 12642#fibo2EXIT >#54#return; 12639#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 12634#fibo1FINAL assume true; 12615#fibo1EXIT >#50#return; 12591#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 12571#fibo2FINAL assume true; 12584#fibo2EXIT >#52#return; 12518#L15-1 [2024-11-13 13:27:16,278 INFO L747 eck$LassoCheckResult]: Loop: 12518#L15-1 call #t~ret5 := fibo2(~n - 2);< 12644#$Ultimate##0 ~n := #in~n; 12757#L20 assume !(~n < 1); 12799#L22 assume !(1 == ~n); 12618#L25 call #t~ret6 := fibo1(~n - 1);< 12626#$Ultimate##0 ~n := #in~n; 12725#L10 assume !(~n < 1); 12706#L12 assume !(1 == ~n); 12581#L15 call #t~ret4 := fibo2(~n - 1);< 12651#$Ultimate##0 ~n := #in~n; 12757#L20 assume !(~n < 1); 12799#L22 assume !(1 == ~n); 12618#L25 call #t~ret6 := fibo1(~n - 1);< 12626#$Ultimate##0 ~n := #in~n; 12725#L10 assume !(~n < 1); 12706#L12 assume !(1 == ~n); 12581#L15 call #t~ret4 := fibo2(~n - 1);< 12651#$Ultimate##0 ~n := #in~n; 12755#L20 assume !(~n < 1); 12718#L22 assume 1 == ~n;#res := 1; 12716#fibo2FINAL assume true; 12714#fibo2EXIT >#52#return; 12574#L15-1 call #t~ret5 := fibo2(~n - 2);< 12643#$Ultimate##0 ~n := #in~n; 12803#L20 assume ~n < 1;#res := 0; 12948#fibo2FINAL assume true; 12701#fibo2EXIT >#54#return; 12639#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 12634#fibo1FINAL assume true; 12615#fibo1EXIT >#48#return; 12604#L25-1 call #t~ret7 := fibo1(~n - 2);< 12605#$Ultimate##0 ~n := #in~n; 12663#L10 assume !(~n < 1); 12660#L12 assume !(1 == ~n); 12580#L15 call #t~ret4 := fibo2(~n - 1);< 12652#$Ultimate##0 ~n := #in~n; 12695#L20 assume !(~n < 1); 12691#L22 assume 1 == ~n;#res := 1; 12658#fibo2FINAL assume true; 12649#fibo2EXIT >#52#return; 12518#L15-1 call #t~ret5 := fibo2(~n - 2);< 12644#$Ultimate##0 ~n := #in~n; 12802#L20 assume ~n < 1;#res := 0; 12519#fibo2FINAL assume true; 12642#fibo2EXIT >#54#return; 12639#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 12634#fibo1FINAL assume true; 12615#fibo1EXIT >#50#return; 12591#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 12571#fibo2FINAL assume true; 12584#fibo2EXIT >#52#return; 12518#L15-1 [2024-11-13 13:27:16,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:16,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2114414096, now seen corresponding path program 1 times [2024-11-13 13:27:16,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:16,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347790780] [2024-11-13 13:27:16,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:16,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:16,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 13:27:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:16,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:16,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:16,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:27:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:16,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:16,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:27:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:16,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 13:27:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:16,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:16,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:27:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:16,618 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 14 proven. 50 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-13 13:27:16,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:16,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347790780] [2024-11-13 13:27:16,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347790780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:16,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749836347] [2024-11-13 13:27:16,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:16,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:16,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:16,622 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:16,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-13 13:27:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:16,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 13:27:16,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 60 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-13 13:27:16,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:27:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 60 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-13 13:27:17,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749836347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:27:17,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:27:17,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 17 [2024-11-13 13:27:17,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62685149] [2024-11-13 13:27:17,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:27:17,133 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 13:27:17,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:17,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1108085027, now seen corresponding path program 2 times [2024-11-13 13:27:17,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:17,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755496889] [2024-11-13 13:27:17,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:17,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:17,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 13:27:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:17,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:17,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:17,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:27:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:17,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 13:27:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:17,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:17,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:27:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:17,398 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-13 13:27:17,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:17,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755496889] [2024-11-13 13:27:17,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755496889] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:17,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612764485] [2024-11-13 13:27:17,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:27:17,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:17,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:17,401 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:17,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-13 13:27:17,469 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:27:17,470 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:27:17,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 13:27:17,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:17,584 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:27:17,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:27:18,148 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 13:27:18,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612764485] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:27:18,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:27:18,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-11-13 13:27:18,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494112234] [2024-11-13 13:27:18,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:27:18,151 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 13:27:18,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:18,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 13:27:18,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-13 13:27:18,152 INFO L87 Difference]: Start difference. First operand 503 states and 688 transitions. cyclomatic complexity: 193 Second operand has 20 states, 17 states have (on average 2.823529411764706) internal successors, (48), 18 states have internal predecessors, (48), 11 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-13 13:27:18,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:18,510 INFO L93 Difference]: Finished difference Result 206 states and 261 transitions. [2024-11-13 13:27:18,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 261 transitions. [2024-11-13 13:27:18,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2024-11-13 13:27:18,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 158 states and 197 transitions. [2024-11-13 13:27:18,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 111 [2024-11-13 13:27:18,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2024-11-13 13:27:18,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 197 transitions. [2024-11-13 13:27:18,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:27:18,517 INFO L218 hiAutomatonCegarLoop]: Abstraction has 158 states and 197 transitions. [2024-11-13 13:27:18,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 197 transitions. [2024-11-13 13:27:18,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 150. [2024-11-13 13:27:18,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 98 states have (on average 1.1734693877551021) internal successors, (115), 105 states have internal predecessors, (115), 27 states have call successors, (27), 20 states have call predecessors, (27), 25 states have return successors, (46), 24 states have call predecessors, (46), 24 states have call successors, (46) [2024-11-13 13:27:18,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 188 transitions. [2024-11-13 13:27:18,525 INFO L240 hiAutomatonCegarLoop]: Abstraction has 150 states and 188 transitions. [2024-11-13 13:27:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 13:27:18,526 INFO L424 stractBuchiCegarLoop]: Abstraction has 150 states and 188 transitions. [2024-11-13 13:27:18,526 INFO L331 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-13 13:27:18,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 188 transitions. [2024-11-13 13:27:18,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2024-11-13 13:27:18,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:27:18,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:27:18,530 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:18,530 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:27:18,531 INFO L745 eck$LassoCheckResult]: Stem: 14243#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3); 14217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 4; 14212#L39 call main_#t~ret8#1 := fibo1(main_~x~0#1);< 14211#$Ultimate##0 ~n := #in~n; 14213#L10 assume !(~n < 1); 14234#L12 assume !(1 == ~n); 14220#L15 call #t~ret4 := fibo2(~n - 1);< 14239#$Ultimate##0 ~n := #in~n; 14296#L20 assume !(~n < 1); 14294#L22 assume !(1 == ~n); 14209#L25 call #t~ret6 := fibo1(~n - 1);< 14214#$Ultimate##0 ~n := #in~n; 14216#L10 assume !(~n < 1); 14303#L12 assume !(1 == ~n); 14189#L15 call #t~ret4 := fibo2(~n - 1);< 14194#$Ultimate##0 ~n := #in~n; 14195#L20 assume !(~n < 1); 14188#L22 assume !(1 == ~n); 14190#L25 call #t~ret6 := fibo1(~n - 1);< 14214#$Ultimate##0 ~n := #in~n; 14215#L10 assume !(~n < 1); 14298#L12 assume 1 == ~n;#res := 1; 14299#fibo1FINAL assume true; 14327#fibo1EXIT >#48#return; 14203#L25-1 call #t~ret7 := fibo1(~n - 2);< 14302#$Ultimate##0 ~n := #in~n; 14237#L10 assume ~n < 1;#res := 0; 14202#fibo1FINAL assume true; 14205#fibo1EXIT >#50#return; 14279#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 14274#fibo2FINAL assume true; 14270#fibo2EXIT >#52#return; 14197#L15-1 [2024-11-13 13:27:18,531 INFO L747 eck$LassoCheckResult]: Loop: 14197#L15-1 call #t~ret5 := fibo2(~n - 2);< 14263#$Ultimate##0 ~n := #in~n; 14260#L20 assume !(~n < 1); 14262#L22 assume !(1 == ~n); 14227#L25 call #t~ret6 := fibo1(~n - 1);< 14261#$Ultimate##0 ~n := #in~n; 14258#L10 assume !(~n < 1); 14253#L12 assume !(1 == ~n); 14200#L15 call #t~ret4 := fibo2(~n - 1);< 14249#$Ultimate##0 ~n := #in~n; 14260#L20 assume !(~n < 1); 14262#L22 assume !(1 == ~n); 14227#L25 call #t~ret6 := fibo1(~n - 1);< 14261#$Ultimate##0 ~n := #in~n; 14258#L10 assume !(~n < 1); 14253#L12 assume !(1 == ~n); 14200#L15 call #t~ret4 := fibo2(~n - 1);< 14249#$Ultimate##0 ~n := #in~n; 14257#L20 assume !(~n < 1); 14251#L22 assume 1 == ~n;#res := 1; 14252#fibo2FINAL assume true; 14321#fibo2EXIT >#52#return; 14192#L15-1 call #t~ret5 := fibo2(~n - 2);< 14191#$Ultimate##0 ~n := #in~n; 14193#L20 assume ~n < 1;#res := 0; 14240#fibo2FINAL assume true; 14329#fibo2EXIT >#54#return; 14306#L15-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 14304#fibo1FINAL assume true; 14286#fibo1EXIT >#48#return; 14283#L25-1 call #t~ret7 := fibo1(~n - 2);< 14285#$Ultimate##0 ~n := #in~n; 14305#L10 assume !(~n < 1); 14301#L12 assume 1 == ~n;#res := 1; 14276#fibo1FINAL assume true; 14287#fibo1EXIT >#50#return; 14288#L25-2 #res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7; 14300#fibo2FINAL assume true; 14266#fibo2EXIT >#52#return; 14197#L15-1 [2024-11-13 13:27:18,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:18,531 INFO L85 PathProgramCache]: Analyzing trace with hash -658151768, now seen corresponding path program 1 times [2024-11-13 13:27:18,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:18,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749129520] [2024-11-13 13:27:18,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:18,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:18,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 13:27:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:18,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 13:27:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:18,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 13:27:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:27:18,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:27:18,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749129520] [2024-11-13 13:27:18,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749129520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:27:18,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754383589] [2024-11-13 13:27:18,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:18,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:27:18,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:18,784 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:27:18,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-13 13:27:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:18,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 13:27:18,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:18,926 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 13:27:18,926 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:27:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 13:27:19,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754383589] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:27:19,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:27:19,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 17 [2024-11-13 13:27:19,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059081530] [2024-11-13 13:27:19,171 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:27:19,171 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-13 13:27:19,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:19,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1769482030, now seen corresponding path program 1 times [2024-11-13 13:27:19,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:27:19,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614119913] [2024-11-13 13:27:19,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:27:19,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:27:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:27:19,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:27:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:27:19,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:27:19,624 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:27:19,625 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:27:19,625 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:27:19,625 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:27:19,625 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 13:27:19,625 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:19,625 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:27:19,625 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:27:19,625 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration8_Loop [2024-11-13 13:27:19,625 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:27:19,625 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:27:19,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:19,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:19,631 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:19,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:19,636 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:19,638 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:19,640 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:19,642 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:19,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:19,689 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:27:19,689 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 13:27:19,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:19,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:19,691 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:19,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-11-13 13:27:19,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:19,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:19,706 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:19,706 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:19,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2024-11-13 13:27:19,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:19,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:19,720 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:19,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-11-13 13:27:19,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:19,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:19,734 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:19,734 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=4} Honda state: {fibo1_#in~n=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:19,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2024-11-13 13:27:19,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:19,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:19,750 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:19,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-11-13 13:27:19,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:19,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:19,764 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:19,764 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:19,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2024-11-13 13:27:19,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:19,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:19,780 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:19,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-11-13 13:27:19,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:19,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:19,795 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:19,796 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:19,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2024-11-13 13:27:19,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:19,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:19,811 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:19,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-11-13 13:27:19,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:19,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:19,827 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:19,827 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:19,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2024-11-13 13:27:19,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:19,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:19,845 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:19,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-11-13 13:27:19,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:19,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:19,862 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:19,862 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:19,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2024-11-13 13:27:19,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:19,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:19,878 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:19,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-11-13 13:27:19,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:19,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:19,896 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:19,896 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:19,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2024-11-13 13:27:19,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:19,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:19,912 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:19,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-11-13 13:27:19,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:19,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:19,928 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:27:19,928 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=2} Honda state: {fibo1_#t~ret4=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 13:27:19,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2024-11-13 13:27:19,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:19,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:19,943 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:19,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-11-13 13:27:19,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:27:19,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:19,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2024-11-13 13:27:19,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:19,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:19,980 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:19,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-11-13 13:27:19,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:27:19,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:27:19,998 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 13:27:20,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2024-11-13 13:27:20,016 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:27:20,016 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:27:20,016 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:27:20,016 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:27:20,016 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 13:27:20,016 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:20,016 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:27:20,016 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:27:20,016 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_4-2.c_Iteration8_Loop [2024-11-13 13:27:20,016 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:27:20,016 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:27:20,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:20,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:20,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:20,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:20,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:20,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:20,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:20,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:20,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:27:20,083 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:27:20,083 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 13:27:20,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:20,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:20,086 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:20,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-11-13 13:27:20,090 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 [2024-11-13 13:27:20,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:20,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:20,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:20,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:20,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:20,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:20,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:20,104 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:20,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:20,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:20,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:20,120 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:20,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-11-13 13:27:20,121 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 [2024-11-13 13:27:20,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:20,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:20,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:20,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:20,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:20,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:20,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:20,136 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:20,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:20,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:20,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:20,151 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:20,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-11-13 13:27:20,152 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 [2024-11-13 13:27:20,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:20,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:20,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:20,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:20,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:20,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:20,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:20,167 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:20,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2024-11-13 13:27:20,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:20,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:20,182 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:20,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-11-13 13:27:20,183 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 [2024-11-13 13:27:20,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:20,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:20,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:20,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:20,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:20,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:20,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:20,198 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:20,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2024-11-13 13:27:20,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:20,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:20,213 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:20,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2024-11-13 13:27:20,215 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 [2024-11-13 13:27:20,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:20,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:20,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:20,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:20,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:20,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:20,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:20,231 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:20,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2024-11-13 13:27:20,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:20,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:20,248 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:20,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2024-11-13 13:27:20,250 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 [2024-11-13 13:27:20,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:20,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:20,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:20,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:20,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:20,264 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:20,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:20,266 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:20,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2024-11-13 13:27:20,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:20,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:20,281 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:20,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2024-11-13 13:27:20,282 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:27:20,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:20,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:20,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:20,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:20,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:20,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:20,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:20,300 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:20,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2024-11-13 13:27:20,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:20,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:20,316 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:20,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2024-11-13 13:27:20,318 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 [2024-11-13 13:27:20,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:20,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:20,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:20,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:20,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:20,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:20,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:20,333 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:27:20,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2024-11-13 13:27:20,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:20,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:20,349 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:20,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2024-11-13 13:27:20,350 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 [2024-11-13 13:27:20,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:27:20,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:27:20,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:27:20,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:27:20,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:27:20,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:27:20,364 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:27:20,367 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 13:27:20,370 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 13:27:20,370 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 13:27:20,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:27:20,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:27:20,372 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:27:20,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2024-11-13 13:27:20,374 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 13:27:20,374 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 13:27:20,374 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 13:27:20,374 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_~n) = 1*fibo1_~n Supporting invariants [] [2024-11-13 13:27:20,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2024-11-13 13:27:20,389 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 13:27:20,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:27:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:20,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 13:27:20,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:27:20,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 13:27:20,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:27:20,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2024-11-13 13:27:20,931 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 13:27:20,932 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 11 loop predicates [2024-11-13 13:27:20,932 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 150 states and 188 transitions. cyclomatic complexity: 40 Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 9 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (8), 4 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 13:27:21,550 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 150 states and 188 transitions. cyclomatic complexity: 40. Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 9 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (8), 4 states have call predecessors, (8), 7 states have call successors, (8) Result 579 states and 758 transitions. Complement of second has 72 states. [2024-11-13 13:27:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 17 states 2 stem states 14 non-accepting loop states 1 accepting loop states [2024-11-13 13:27:21,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 9 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (8), 4 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-13 13:27:21,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 80 transitions. [2024-11-13 13:27:21,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 80 transitions. Stem has 32 letters. Loop has 39 letters. [2024-11-13 13:27:21,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:21,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 80 transitions. Stem has 71 letters. Loop has 39 letters. [2024-11-13 13:27:21,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:21,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 17 states and 80 transitions. Stem has 32 letters. Loop has 78 letters. [2024-11-13 13:27:21,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:27:21,561 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 579 states and 758 transitions. [2024-11-13 13:27:21,579 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2024-11-13 13:27:21,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 579 states to 527 states and 695 transitions. [2024-11-13 13:27:21,595 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 260 [2024-11-13 13:27:21,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 280 [2024-11-13 13:27:21,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 527 states and 695 transitions. [2024-11-13 13:27:21,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:27:21,600 INFO L218 hiAutomatonCegarLoop]: Abstraction has 527 states and 695 transitions. [2024-11-13 13:27:21,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states and 695 transitions. [2024-11-13 13:27:21,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 476. [2024-11-13 13:27:21,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 306 states have (on average 1.1830065359477124) internal successors, (362), 325 states have internal predecessors, (362), 92 states have call successors, (93), 60 states have call predecessors, (93), 78 states have return successors, (168), 90 states have call predecessors, (168), 89 states have call successors, (168) [2024-11-13 13:27:21,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 623 transitions. [2024-11-13 13:27:21,629 INFO L240 hiAutomatonCegarLoop]: Abstraction has 476 states and 623 transitions. [2024-11-13 13:27:21,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:27:21,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 13:27:21,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-13 13:27:21,630 INFO L87 Difference]: Start difference. First operand 476 states and 623 transitions. Second operand has 18 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 8 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-13 13:27:21,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:27:21,944 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2024-11-13 13:27:21,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 58 transitions. [2024-11-13 13:27:21,945 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 13:27:21,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 0 states and 0 transitions. [2024-11-13 13:27:21,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-13 13:27:21,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-13 13:27:21,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-13 13:27:21,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 13:27:21,945 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 13:27:21,945 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 13:27:21,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:27:21,947 INFO L424 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 13:27:21,947 INFO L331 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-13 13:27:21,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-13 13:27:21,947 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 13:27:21,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-13 13:27:21,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 01:27:21 BoogieIcfgContainer [2024-11-13 13:27:21,958 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 13:27:21,959 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:27:21,959 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:27:21,959 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:27:21,960 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:26:58" (3/4) ... [2024-11-13 13:27:21,962 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 13:27:21,963 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:27:21,964 INFO L158 Benchmark]: Toolchain (without parser) took 24255.22ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 93.9MB in the beginning and 105.6MB in the end (delta: -11.7MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-11-13 13:27:21,964 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:27:21,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.47ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 83.3MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:27:21,965 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.00ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:27:21,965 INFO L158 Benchmark]: Boogie Preprocessor took 46.22ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:27:21,966 INFO L158 Benchmark]: RCFGBuilder took 329.83ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 71.1MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:27:21,966 INFO L158 Benchmark]: BuchiAutomizer took 23515.73ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 71.1MB in the beginning and 105.6MB in the end (delta: -34.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:27:21,966 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 105.6MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:27:21,968 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.47ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 83.3MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.00ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.22ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 329.83ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 71.1MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 23515.73ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 71.1MB in the beginning and 105.6MB in the end (delta: -34.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 105.6MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (7 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 8 locations. One deterministic module has affine ranking function n and consists of 14 locations. One deterministic module has affine ranking function n and consists of 17 locations. One nondeterministic module has affine ranking function \old(n) and consists of 9 locations. One nondeterministic module has affine ranking function \old(n) and consists of 12 locations. 7 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 23.4s and 9 iterations. TraceHistogramMax:6. Analysis of lassos took 12.2s. Construction of modules took 2.6s. Büchi inclusion checks took 8.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 11. Automata minimization 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 419 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 9/41 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 759 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 732 mSDsluCounter, 1501 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1104 mSDsCounter, 458 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2643 IncrementalHoareTripleChecker+Invalid, 3101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 458 mSolverCounterUnsat, 397 mSDtfsCounter, 2643 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI3 SILT3 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp82 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf91 smp82 dnf100 smp100 tf113 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 28 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-13 13:27:21,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2024-11-13 13:27:22,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:22,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:22,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:22,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:22,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-13 13:27:23,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-13 13:27:23,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-13 13:27:23,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520a5bcc-ac2a-4940-a253-6147bf13bc32/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE