./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/NestedRecursion_2b.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for termination
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/NestedRecursion_2b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX --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 64bit --witnessprinter.graph.data.programhash 422ea435de955cc6e58e578076c5ef733a2456157ad413df035d109cb231427a
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 18:19:14,340 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:19:14,413 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-64bit-Automizer_Default.epf
[2024-11-08 18:19:14,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:19:14,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:19:14,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:19:14,479 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:19:14,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:19:14,481 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:19:14,481 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 18:19:14,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:19:14,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 18:19:14,484 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 18:19:14,486 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2024-11-08 18:19:14,488 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2024-11-08 18:19:14,489 INFO L153 SettingsManager]: * Use old map elimination=false
[2024-11-08 18:19:14,489 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false
[2024-11-08 18:19:14,490 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true
[2024-11-08 18:19:14,494 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2024-11-08 18:19:14,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:19:14,505 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2024-11-08 18:19:14,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 18:19:14,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 18:19:14,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2024-11-08 18:19:14,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2024-11-08 18:19:14,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2024-11-08 18:19:14,508 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 18:19:14,508 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 18:19:14,509 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 18:19:14,509 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false
[2024-11-08 18:19:14,510 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 18:19:14,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:19:14,511 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 18:19:14,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:19:14,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 18:19:14,512 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2024-11-08 18:19:14,512 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 422ea435de955cc6e58e578076c5ef733a2456157ad413df035d109cb231427a
[2024-11-08 18:19:14,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:19:14,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:19:14,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:19:14,895 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 18:19:14,895 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 18:19:14,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/termination-crafted/NestedRecursion_2b.c
Unable to find full path for "g++"
[2024-11-08 18:19:17,252 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:19:17,458 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 18:19:17,459 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/sv-benchmarks/c/termination-crafted/NestedRecursion_2b.c
[2024-11-08 18:19:17,466 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/data/147aad4fb/1d0453f35505490386bdc6d4f17cb334/FLAG99569edd1
[2024-11-08 18:19:17,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/data/147aad4fb/1d0453f35505490386bdc6d4f17cb334
[2024-11-08 18:19:17,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:19:17,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:19:17,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:19:17,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:19:17,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:19:17,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:19:17" (1/1) ...
[2024-11-08 18:19:17,836 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e2040e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:17, skipping insertion in model container
[2024-11-08 18:19:17,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:19:17" (1/1) ...
[2024-11-08 18:19:17,861 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:19:18,090 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:19:18,114 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 18:19:18,130 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:19:18,152 INFO L204 MainTranslator]: Completed translation
[2024-11-08 18:19:18,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18 WrapperNode
[2024-11-08 18:19:18,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:19:18,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:19:18,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:19:18,155 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:19:18,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (1/1) ...
[2024-11-08 18:19:18,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (1/1) ...
[2024-11-08 18:19:18,184 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10
[2024-11-08 18:19:18,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:19:18,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:19:18,186 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:19:18,186 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:19:18,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (1/1) ...
[2024-11-08 18:19:18,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (1/1) ...
[2024-11-08 18:19:18,198 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (1/1) ...
[2024-11-08 18:19:18,204 INFO L175 MemorySlicer]: No memory access in input program.
[2024-11-08 18:19:18,204 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (1/1) ...
[2024-11-08 18:19:18,204 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (1/1) ...
[2024-11-08 18:19:18,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (1/1) ...
[2024-11-08 18:19:18,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (1/1) ...
[2024-11-08 18:19:18,210 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (1/1) ...
[2024-11-08 18:19:18,210 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (1/1) ...
[2024-11-08 18:19:18,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:19:18,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:19:18,212 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:19:18,213 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:19:18,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (1/1) ...
[2024-11-08 18:19:18,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:18,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:18,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:18,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:19:18,301 INFO L130 BoogieDeclarations]: Found specification of procedure g
[2024-11-08 18:19:18,302 INFO L138 BoogieDeclarations]: Found implementation of procedure g
[2024-11-08 18:19:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:19:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:19:18,379 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 18:19:18,381 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:19:18,530 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live.
[2024-11-08 18:19:18,530 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 18:19:18,544 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:19:18,544 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 18:19:18,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:19:18 BoogieIcfgContainer
[2024-11-08 18:19:18,545 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:19:18,545 INFO L112 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2024-11-08 18:19:18,546 INFO L270 PluginConnector]: Initializing BuchiAutomizer...
[2024-11-08 18:19:18,549 INFO L274 PluginConnector]: BuchiAutomizer initialized
[2024-11-08 18:19:18,550 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-11-08 18:19:18,551 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.11 06:19:17" (1/3) ...
[2024-11-08 18:19:18,552 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b23b78c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 06:19:18, skipping insertion in model container
[2024-11-08 18:19:18,552 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-11-08 18:19:18,552 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:19:18" (2/3) ...
[2024-11-08 18:19:18,553 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b23b78c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 06:19:18, skipping insertion in model container
[2024-11-08 18:19:18,553 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-11-08 18:19:18,553 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:19:18" (3/3) ...
[2024-11-08 18:19:18,555 INFO L332 chiAutomizerObserver]: Analyzing ICFG NestedRecursion_2b.c
[2024-11-08 18:19:18,613 INFO L300 stractBuchiCegarLoop]: Interprodecural is true
[2024-11-08 18:19:18,613 INFO L301 stractBuchiCegarLoop]: Hoare is None
[2024-11-08 18:19:18,614 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2024-11-08 18:19:18,614 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2024-11-08 18:19:18,614 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2024-11-08 18:19:18,614 INFO L305 stractBuchiCegarLoop]: Difference is false
[2024-11-08 18:19:18,614 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2024-11-08 18:19:18,615 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2024-11-08 18:19:18,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-08 18:19:18,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2024-11-08 18:19:18,641 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 18:19:18,641 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 18:19:18,649 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2024-11-08 18:19:18,649 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2024-11-08 18:19:18,649 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============
[2024-11-08 18:19:18,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-08 18:19:18,652 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2024-11-08 18:19:18,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 18:19:18,652 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 18:19:18,653 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2024-11-08 18:19:18,653 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2024-11-08 18:19:18,662 INFO L745 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~x~0#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 11#L20true assume !(main_~x~0#1 < 0); 9#L21true call main_#t~ret3#1 := g(main_~x~0#1);< 12#$Ultimate##0true
[2024-11-08 18:19:18,662 INFO L747 eck$LassoCheckResult]: Loop: 12#$Ultimate##0true ~x := #in~x; 6#L12true assume !(0 == ~x); 4#L15true call #t~ret0 := g(~x - 1);< 12#$Ultimate##0true
[2024-11-08 18:19:18,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1202733, now seen corresponding path program 1 times
[2024-11-08 18:19:18,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:19:18,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431981724]
[2024-11-08 18:19:18,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:18,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:19:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:18,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:19:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:18,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:19:18,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:18,793 INFO L85 PathProgramCache]: Analyzing trace with hash 29937, now seen corresponding path program 1 times
[2024-11-08 18:19:18,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:19:18,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348764330]
[2024-11-08 18:19:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:18,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:19:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:18,800 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:19:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:18,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:19:18,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:18,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1470880581, now seen corresponding path program 1 times
[2024-11-08 18:19:18,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:19:18,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194015719]
[2024-11-08 18:19:18,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:18,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:19:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:18,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:19:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:18,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:19:18,945 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 18:19:18,946 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 18:19:18,946 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 18:19:18,946 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 18:19:18,946 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-08 18:19:18,947 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:18,947 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 18:19:18,947 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 18:19:18,947 INFO L132 ssoRankerPreferences]: Filename of dumped script: NestedRecursion_2b.c_Iteration1_Loop
[2024-11-08 18:19:18,948 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 18:19:18,948 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 18:19:18,967 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:18,978 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:18,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:18,987 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:18,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:19,089 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 18:19:19,090 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-08 18:19:19,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,100 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:19,101 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,126 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:19,127 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~x=0} Honda state: {g_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:19,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:19,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,155 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:19,160 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,178 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:19,178 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret1=0} Honda state: {g_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:19,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:19,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,196 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:19,199 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,215 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:19,215 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#res=0} Honda state: {g_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:19,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0
[2024-11-08 18:19:19,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,238 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:19,243 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,259 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:19,259 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret0=0} Honda state: {g_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:19,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0
[2024-11-08 18:19:19,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,284 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:19,288 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0
[2024-11-08 18:19:19,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,336 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,360 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-08 18:19:19,361 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,409 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:19,409 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~x=-8} Honda state: {g_#in~x=-8} Generalized eigenvectors: [{g_#in~x=0}, {g_#in~x=-1}, {g_#in~x=0}] Lambdas: [6, 1, 13] Nus: [0, 1]
[2024-11-08 18:19:19,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0
[2024-11-08 18:19:19,470 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 18:19:19,471 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 18:19:19,471 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 18:19:19,471 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 18:19:19,471 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-08 18:19:19,471 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,471 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 18:19:19,472 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 18:19:19,472 INFO L132 ssoRankerPreferences]: Filename of dumped script: NestedRecursion_2b.c_Iteration1_Lasso
[2024-11-08 18:19:19,472 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 18:19:19,472 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 18:19:19,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:19,478 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:19,482 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:19,487 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:19,491 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:19,495 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:19,498 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:19,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:19,521 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:19,619 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 18:19:19,619 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-08 18:19:19,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,622 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:19,626 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,645 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:19,645 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret1=0} Honda state: {g_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:19,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0
[2024-11-08 18:19:19,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,671 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,674 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:19,674 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,695 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:19,695 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#res=0} Honda state: {g_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:19,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0
[2024-11-08 18:19:19,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,719 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:19,723 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,743 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:19,743 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret0=0} Honda state: {g_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:19,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0
[2024-11-08 18:19:19,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,768 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:19,772 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,831 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:19,831 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret3#1=0} Honda state: {ULTIMATE.start_main_#t~ret3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:19,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:19,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,850 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:19,853 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,868 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:19,868 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:19,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:19,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,885 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,887 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:19,887 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,901 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:19,901 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~x=0} Honda state: {g_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:19,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:19,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,916 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:19,919 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:19,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0
[2024-11-08 18:19:19,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:19,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:19,959 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:19,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2024-11-08 18:19:19,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-08 18:19:19,990 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:20,041 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-08 18:19:20,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:20,045 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 18:19:20,045 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 18:19:20,045 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 18:19:20,045 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 18:19:20,046 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-08 18:19:20,046 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:20,046 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 18:19:20,046 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 18:19:20,046 INFO L132 ssoRankerPreferences]: Filename of dumped script: NestedRecursion_2b.c_Iteration1_Lasso
[2024-11-08 18:19:20,046 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 18:19:20,046 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 18:19:20,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:20,052 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:20,055 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:20,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:20,063 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:20,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:20,070 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:20,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:20,085 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:20,161 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 18:19:20,166 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-08 18:19:20,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:20,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:20,169 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:20,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process
[2024-11-08 18:19:20,173 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
[2024-11-08 18:19:20,190 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:20,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 18:19:20,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:20,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 18:19:20,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:20,193 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 18:19:20,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 18:19:20,199 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 18:19:20,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0
[2024-11-08 18:19:20,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:20,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:20,224 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:20,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process
[2024-11-08 18:19:20,227 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
[2024-11-08 18:19:20,244 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:20,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 18:19:20,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:20,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 18:19:20,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:20,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 18:19:20,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 18:19:20,249 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 18:19:20,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:20,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:20,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:20,265 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:20,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process
[2024-11-08 18:19:20,267 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
[2024-11-08 18:19:20,282 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:20,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 18:19:20,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:20,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 18:19:20,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:20,284 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 18:19:20,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 18:19:20,286 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 18:19:20,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:20,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:20,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:20,302 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:20,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process
[2024-11-08 18:19:20,304 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
[2024-11-08 18:19:20,317 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:20,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 18:19:20,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:20,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 18:19:20,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:20,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 18:19:20,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 18:19:20,321 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 18:19:20,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:20,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:20,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:20,337 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:20,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process
[2024-11-08 18:19:20,340 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
[2024-11-08 18:19:20,353 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:20,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 18:19:20,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:20,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 18:19:20,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:20,355 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 18:19:20,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 18:19:20,360 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 18:19:20,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:20,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:20,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:20,382 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:20,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process
[2024-11-08 18:19:20,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 18:19:20,398 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:20,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 18:19:20,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:20,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 18:19:20,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:20,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 18:19:20,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 18:19:20,403 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 18:19:20,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:20,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:20,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:20,422 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:20,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process
[2024-11-08 18:19:20,425 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
[2024-11-08 18:19:20,439 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:20,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 18:19:20,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:20,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 18:19:20,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:20,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 18:19:20,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 18:19:20,445 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 18:19:20,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0
[2024-11-08 18:19:20,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:20,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:20,459 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:20,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process
[2024-11-08 18:19:20,461 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 18:19:20,474 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:20,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:20,474 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2024-11-08 18:19:20,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:20,495 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications.
[2024-11-08 18:19:20,495 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added.
[2024-11-08 18:19:20,528 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-08 18:19:20,580 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver.
[2024-11-08 18:19:20,580 INFO L444 ModelExtractionUtils]: 2 out of 11 variables were initially zero. Simplification set additionally 6 variables to zero.
[2024-11-08 18:19:20,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:20,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:20,584 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:20,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process
[2024-11-08 18:19:20,587 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-08 18:19:20,611 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4.
[2024-11-08 18:19:20,611 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-08 18:19:20,612 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(g_#in~x) = 1*g_#in~x
Supporting invariants [1*g_#in~x >= 0]
[2024-11-08 18:19:20,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:20,642 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed
[2024-11-08 18:19:20,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:19:20,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 18:19:20,738 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:19:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:19:20,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-08 18:19:20,796 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:19:20,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:19:20,936 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates
[2024-11-08 18:19:20,939 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:19:21,144 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 43 transitions. Complement of second has 17 states.
[2024-11-08 18:19:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-08 18:19:21,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:19:21,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 12 transitions.
[2024-11-08 18:19:21,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 4 letters. Loop has 3 letters.
[2024-11-08 18:19:21,160 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 18:19:21,160 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 7 letters. Loop has 3 letters.
[2024-11-08 18:19:21,161 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 18:19:21,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 12 transitions. Stem has 4 letters. Loop has 6 letters.
[2024-11-08 18:19:21,161 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 18:19:21,163 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 43 transitions.
[2024-11-08 18:19:21,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2024-11-08 18:19:21,178 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 20 states and 26 transitions.
[2024-11-08 18:19:21,180 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14
[2024-11-08 18:19:21,181 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15
[2024-11-08 18:19:21,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions.
[2024-11-08 18:19:21,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 18:19:21,184 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions.
[2024-11-08 18:19:21,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions.
[2024-11-08 18:19:21,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18.
[2024-11-08 18:19:21,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4)
[2024-11-08 18:19:21,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions.
[2024-11-08 18:19:21,226 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions.
[2024-11-08 18:19:21,226 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 22 transitions.
[2024-11-08 18:19:21,227 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============
[2024-11-08 18:19:21,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions.
[2024-11-08 18:19:21,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2024-11-08 18:19:21,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 18:19:21,227 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 18:19:21,228 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:19:21,229 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:19:21,229 INFO L745 eck$LassoCheckResult]: Stem: 132#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 133#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~x~0#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 134#L20 assume !(main_~x~0#1 < 0); 129#L21 call main_#t~ret3#1 := g(main_~x~0#1);< 131#$Ultimate##0 ~x := #in~x; 135#L12 assume !(0 == ~x); 124#L15 call #t~ret0 := g(~x - 1);< 130#$Ultimate##0 ~x := #in~x; 136#L12 assume 0 == ~x;#res := 1; 123#gFINAL assume true; 125#gEXIT >#23#return; 127#L15-1
[2024-11-08 18:19:21,229 INFO L747 eck$LassoCheckResult]: Loop: 127#L15-1 call #t~ret1 := g(1 + #t~ret0);< 128#$Ultimate##0 ~x := #in~x; 139#L12 assume !(0 == ~x); 126#L15 call #t~ret0 := g(~x - 1);< 128#$Ultimate##0 ~x := #in~x; 139#L12 assume 0 == ~x;#res := 1; 138#gFINAL assume true; 140#gEXIT >#23#return; 127#L15-1
[2024-11-08 18:19:21,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:21,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1676493545, now seen corresponding path program 1 times
[2024-11-08 18:19:21,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:19:21,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626992076]
[2024-11-08 18:19:21,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:21,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:19:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:21,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:19:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:21,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:19:21,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:21,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1500125133, now seen corresponding path program 1 times
[2024-11-08 18:19:21,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:19:21,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999869176]
[2024-11-08 18:19:21,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:21,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:19:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:21,276 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:19:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:21,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:19:21,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:21,284 INFO L85 PathProgramCache]: Analyzing trace with hash 122773219, now seen corresponding path program 1 times
[2024-11-08 18:19:21,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:19:21,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481745284]
[2024-11-08 18:19:21,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:21,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:19:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:19:21,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-11-08 18:19:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:19:21,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2024-11-08 18:19:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:19:21,623 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 18:19:21,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:19:21,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481745284]
[2024-11-08 18:19:21,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481745284] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:19:21,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346144111]
[2024-11-08 18:19:21,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:21,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:19:21,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:21,630 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:19:21,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2024-11-08 18:19:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:19:21,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 18:19:21,681 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:19:21,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0
[2024-11-08 18:19:21,803 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 18:19:21,803 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:19:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 18:19:21,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346144111] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:19:21,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:19:21,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 10
[2024-11-08 18:19:21,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032556018]
[2024-11-08 18:19:21,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:19:22,181 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 18:19:22,182 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 18:19:22,182 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 18:19:22,182 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 18:19:22,182 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-08 18:19:22,182 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,182 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 18:19:22,183 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 18:19:22,183 INFO L132 ssoRankerPreferences]: Filename of dumped script: NestedRecursion_2b.c_Iteration2_Loop
[2024-11-08 18:19:22,183 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 18:19:22,183 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 18:19:22,184 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:22,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:22,196 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:22,201 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:22,210 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:22,288 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 18:19:22,289 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-08 18:19:22,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:22,291 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:22,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process
[2024-11-08 18:19:22,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:22,297 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:22,317 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:22,317 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~x=1} Honda state: {g_#in~x=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:22,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:22,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:22,342 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:22,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process
[2024-11-08 18:19:22,345 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:22,345 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:22,367 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:22,367 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#res=0} Honda state: {g_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:22,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:22,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:22,391 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:22,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process
[2024-11-08 18:19:22,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:22,395 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:22,416 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:22,416 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_~x=1} Honda state: {g_~x=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:22,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:22,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:22,431 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:22,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process
[2024-11-08 18:19:22,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:22,434 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:22,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0
[2024-11-08 18:19:22,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:22,464 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:22,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process
[2024-11-08 18:19:22,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-08 18:19:22,467 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:22,484 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-08 18:19:22,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:22,507 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 18:19:22,507 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 18:19:22,507 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 18:19:22,507 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 18:19:22,507 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-08 18:19:22,508 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,508 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 18:19:22,508 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 18:19:22,508 INFO L132 ssoRankerPreferences]: Filename of dumped script: NestedRecursion_2b.c_Iteration2_Loop
[2024-11-08 18:19:22,508 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 18:19:22,508 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 18:19:22,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:22,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:22,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:22,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:22,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:22,596 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 18:19:22,597 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-08 18:19:22,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:22,600 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:22,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process
[2024-11-08 18:19:22,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-08 18:19:22,620 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:22,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 18:19:22,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:22,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 18:19:22,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:22,622 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 18:19:22,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 18:19:22,625 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 18:19:22,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:22,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:22,650 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:22,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process
[2024-11-08 18:19:22,654 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
[2024-11-08 18:19:22,671 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:22,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 18:19:22,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:22,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 18:19:22,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:22,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 18:19:22,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 18:19:22,676 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 18:19:22,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:22,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:22,700 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:22,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process
[2024-11-08 18:19:22,703 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
[2024-11-08 18:19:22,720 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:22,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 18:19:22,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:22,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 18:19:22,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:22,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 18:19:22,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 18:19:22,728 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 18:19:22,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:22,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:22,751 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:22,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process
[2024-11-08 18:19:22,755 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
[2024-11-08 18:19:22,771 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:22,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 18:19:22,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:22,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 18:19:22,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:22,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 18:19:22,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 18:19:22,774 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-08 18:19:22,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:22,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:22,790 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:22,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process
[2024-11-08 18:19:22,792 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
[2024-11-08 18:19:22,805 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-08 18:19:22,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-08 18:19:22,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-08 18:19:22,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-08 18:19:22,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-08 18:19:22,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-08 18:19:22,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-08 18:19:22,811 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-08 18:19:22,816 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2024-11-08 18:19:22,816 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2024-11-08 18:19:22,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:22,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:22,819 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:22,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process
[2024-11-08 18:19:22,822 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-08 18:19:22,822 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-11-08 18:19:22,822 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-08 18:19:22,822 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(g_#t~ret0) = -2*g_#t~ret0 + 1
Supporting invariants []
[2024-11-08 18:19:22,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:22,846 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-11-08 18:19:22,851 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~ret0
[2024-11-08 18:19:22,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:19:22,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 18:19:22,920 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:19:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:19:23,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-08 18:19:23,039 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:19:23,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:19:23,186 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates
[2024-11-08 18:19:23,186 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 6 Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:19:23,520 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 6. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 83 states and 121 transitions. Complement of second has 31 states.
[2024-11-08 18:19:23,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states
[2024-11-08 18:19:23,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:19:23,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 37 transitions.
[2024-11-08 18:19:23,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 37 transitions. Stem has 11 letters. Loop has 8 letters.
[2024-11-08 18:19:23,525 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 18:19:23,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 37 transitions. Stem has 19 letters. Loop has 8 letters.
[2024-11-08 18:19:23,525 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 18:19:23,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 37 transitions. Stem has 11 letters. Loop has 16 letters.
[2024-11-08 18:19:23,526 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-08 18:19:23,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 121 transitions.
[2024-11-08 18:19:23,538 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8
[2024-11-08 18:19:23,545 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 59 states and 82 transitions.
[2024-11-08 18:19:23,545 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45
[2024-11-08 18:19:23,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46
[2024-11-08 18:19:23,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 82 transitions.
[2024-11-08 18:19:23,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 18:19:23,550 INFO L218 hiAutomatonCegarLoop]: Abstraction has 59 states and 82 transitions.
[2024-11-08 18:19:23,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 82 transitions.
[2024-11-08 18:19:23,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53.
[2024-11-08 18:19:23,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 33 states have internal predecessors, (36), 15 states have call successors, (18), 8 states have call predecessors, (18), 7 states have return successors, (18), 11 states have call predecessors, (18), 13 states have call successors, (18)
[2024-11-08 18:19:23,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions.
[2024-11-08 18:19:23,567 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 72 transitions.
[2024-11-08 18:19:23,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:19:23,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 18:19:23,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2024-11-08 18:19:23,576 INFO L87 Difference]: Start difference. First operand 53 states and 72 transitions. Second operand has 11 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-08 18:19:23,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:19:23,716 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions.
[2024-11-08 18:19:23,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 45 transitions.
[2024-11-08 18:19:23,718 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7
[2024-11-08 18:19:23,722 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 31 states and 35 transitions.
[2024-11-08 18:19:23,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26
[2024-11-08 18:19:23,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26
[2024-11-08 18:19:23,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 35 transitions.
[2024-11-08 18:19:23,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 18:19:23,722 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 35 transitions.
[2024-11-08 18:19:23,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 35 transitions.
[2024-11-08 18:19:23,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26.
[2024-11-08 18:19:23,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 7 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:19:23,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions.
[2024-11-08 18:19:23,729 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions.
[2024-11-08 18:19:23,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 18:19:23,730 INFO L425 stractBuchiCegarLoop]: Abstraction has 26 states and 28 transitions.
[2024-11-08 18:19:23,731 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============
[2024-11-08 18:19:23,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 28 transitions.
[2024-11-08 18:19:23,731 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7
[2024-11-08 18:19:23,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 18:19:23,732 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 18:19:23,732 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:19:23,732 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2024-11-08 18:19:23,733 INFO L745 eck$LassoCheckResult]: Stem: 581#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 582#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~x~0#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 583#L20 assume !(main_~x~0#1 < 0); 577#L21 call main_#t~ret3#1 := g(main_~x~0#1);< 580#$Ultimate##0 ~x := #in~x; 586#L12 assume !(0 == ~x); 576#L15 call #t~ret0 := g(~x - 1);< 578#$Ultimate##0 ~x := #in~x; 585#L12 assume 0 == ~x;#res := 1; 594#gFINAL assume true; 579#gEXIT >#23#return; 574#L15-1 call #t~ret1 := g(1 + #t~ret0);< 587#$Ultimate##0 ~x := #in~x; 592#L12 assume !(0 == ~x); 573#L15 call #t~ret0 := g(~x - 1);< 575#$Ultimate##0 ~x := #in~x; 584#L12 assume !(0 == ~x); 570#L15
[2024-11-08 18:19:23,733 INFO L747 eck$LassoCheckResult]: Loop: 570#L15 call #t~ret0 := g(~x - 1);< 589#$Ultimate##0 ~x := #in~x; 588#L12 assume !(0 == ~x); 570#L15
[2024-11-08 18:19:23,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:23,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1443446059, now seen corresponding path program 2 times
[2024-11-08 18:19:23,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:19:23,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320692327]
[2024-11-08 18:19:23,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:23,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:19:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:23,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:19:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:23,760 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:19:23,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:23,761 INFO L85 PathProgramCache]: Analyzing trace with hash 50937, now seen corresponding path program 2 times
[2024-11-08 18:19:23,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:19:23,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277300000]
[2024-11-08 18:19:23,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:23,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:19:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:23,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:19:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:23,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:19:23,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:23,778 INFO L85 PathProgramCache]: Analyzing trace with hash -488954971, now seen corresponding path program 3 times
[2024-11-08 18:19:23,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:19:23,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110485424]
[2024-11-08 18:19:23,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:23,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:19:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:19:23,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2024-11-08 18:19:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:19:24,044 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 18:19:24,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:19:24,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110485424]
[2024-11-08 18:19:24,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110485424] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:19:24,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43315010]
[2024-11-08 18:19:24,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-08 18:19:24,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:19:24,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:24,050 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:19:24,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process
[2024-11-08 18:19:24,094 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s)
[2024-11-08 18:19:24,094 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 18:19:24,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-08 18:19:24,097 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:19:24,134 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 18:19:24,134 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 18:19:24,191 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-08 18:19:24,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43315010] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 18:19:24,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 18:19:24,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9
[2024-11-08 18:19:24,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992006476]
[2024-11-08 18:19:24,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 18:19:24,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0
[2024-11-08 18:19:24,274 INFO L204 LassoAnalysis]: Preferences:
[2024-11-08 18:19:24,274 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-08 18:19:24,274 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-08 18:19:24,274 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-08 18:19:24,274 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-08 18:19:24,275 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:24,275 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-08 18:19:24,275 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-08 18:19:24,275 INFO L132 ssoRankerPreferences]: Filename of dumped script: NestedRecursion_2b.c_Iteration3_Loop
[2024-11-08 18:19:24,275 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-08 18:19:24,275 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-08 18:19:24,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:24,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:24,292 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:24,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-08 18:19:24,359 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-08 18:19:24,359 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-08 18:19:24,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:24,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:24,361 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:24,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process
[2024-11-08 18:19:24,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:24,367 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:24,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:24,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:24,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:24,427 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:24,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process
[2024-11-08 18:19:24,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-08 18:19:24,431 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:24,896 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:24,896 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#in~x=4, g_~x=-2} Honda state: {g_#in~x=4, g_~x=-2} Generalized eigenvectors: [{g_#in~x=-8, g_~x=0}, {g_#in~x=2, g_~x=0}, {g_#in~x=-1, g_~x=-1}] Lambdas: [0, 0, 1] Nus: [0, 0]
[2024-11-08 18:19:24,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:24,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:24,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:24,919 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:24,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process
[2024-11-08 18:19:24,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:24,924 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:24,949 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:24,949 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret1=0} Honda state: {g_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:24,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:24,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:24,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:24,972 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:24,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process
[2024-11-08 18:19:24,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:24,975 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:24,998 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:24,998 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret0=0} Honda state: {g_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:25,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:25,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-08 18:19:25,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:19:25,022 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-08 18:19:25,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process
[2024-11-08 18:19:25,025 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-08 18:19:25,025 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-08 18:19:25,043 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-08 18:19:25,043 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#res=0} Honda state: {g_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-08 18:19:25,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0
[2024-11-08 18:19:25,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:19:25,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 18:19:25,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2024-11-08 18:19:25,066 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. cyclomatic complexity: 4 Second operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 6 states have internal predecessors, (13), 4 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-08 18:19:25,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:19:25,212 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions.
[2024-11-08 18:19:25,212 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions.
[2024-11-08 18:19:25,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7
[2024-11-08 18:19:25,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 29 transitions.
[2024-11-08 18:19:25,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25
[2024-11-08 18:19:25,216 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25
[2024-11-08 18:19:25,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 29 transitions.
[2024-11-08 18:19:25,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-08 18:19:25,217 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 29 transitions.
[2024-11-08 18:19:25,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 29 transitions.
[2024-11-08 18:19:25,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22.
[2024-11-08 18:19:25,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 5 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-08 18:19:25,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions.
[2024-11-08 18:19:25,221 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 23 transitions.
[2024-11-08 18:19:25,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 18:19:25,223 INFO L425 stractBuchiCegarLoop]: Abstraction has 22 states and 23 transitions.
[2024-11-08 18:19:25,224 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============
[2024-11-08 18:19:25,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 23 transitions.
[2024-11-08 18:19:25,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7
[2024-11-08 18:19:25,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-08 18:19:25,225 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-08 18:19:25,226 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:19:25,226 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 2, 2, 1, 1, 1, 1]
[2024-11-08 18:19:25,226 INFO L745 eck$LassoCheckResult]: Stem: 777#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 778#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~ret3#1, main_~x~0#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 779#L20 assume !(main_~x~0#1 < 0); 773#L21 call main_#t~ret3#1 := g(main_~x~0#1);< 776#$Ultimate##0 ~x := #in~x; 782#L12 assume !(0 == ~x); 772#L15 call #t~ret0 := g(~x - 1);< 774#$Ultimate##0 ~x := #in~x; 781#L12 assume 0 == ~x;#res := 1; 786#gFINAL assume true; 775#gEXIT >#23#return; 770#L15-1
[2024-11-08 18:19:25,227 INFO L747 eck$LassoCheckResult]: Loop: 770#L15-1 call #t~ret1 := g(1 + #t~ret0);< 784#$Ultimate##0 ~x := #in~x; 783#L12 assume !(0 == ~x); 769#L15 call #t~ret0 := g(~x - 1);< 771#$Ultimate##0 ~x := #in~x; 780#L12 assume !(0 == ~x); 767#L15 call #t~ret0 := g(~x - 1);< 785#$Ultimate##0 ~x := #in~x; 787#L12 assume 0 == ~x;#res := 1; 766#gFINAL assume true; 768#gEXIT >#23#return; 770#L15-1
[2024-11-08 18:19:25,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:25,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1676493545, now seen corresponding path program 2 times
[2024-11-08 18:19:25,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:19:25,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627680905]
[2024-11-08 18:19:25,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:25,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:19:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:25,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:19:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:25,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:19:25,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:25,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1133998729, now seen corresponding path program 2 times
[2024-11-08 18:19:25,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:19:25,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161159591]
[2024-11-08 18:19:25,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:25,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:19:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:25,262 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:19:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:25,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:19:25,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:19:25,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1734292557, now seen corresponding path program 4 times
[2024-11-08 18:19:25,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:19:25,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120792649]
[2024-11-08 18:19:25,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:19:25,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:19:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:25,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:19:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:25,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:19:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:25,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:19:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:19:25,706 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back.
[2024-11-08 18:19:25,711 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back.
[2024-11-08 18:19:25,717 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back.
[2024-11-08 18:19:25,719 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back.
[2024-11-08 18:19:25,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.11 06:19:25 BoogieIcfgContainer
[2024-11-08 18:19:25,720 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2024-11-08 18:19:25,722 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 18:19:25,722 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 18:19:25,722 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 18:19:25,723 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:19:18" (3/4) ...
[2024-11-08 18:19:25,725 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample
[2024-11-08 18:19:25,727 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back.
[2024-11-08 18:19:25,727 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back.
[2024-11-08 18:19:25,773 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/witness.graphml
[2024-11-08 18:19:25,773 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 18:19:25,774 INFO L158 Benchmark]: Toolchain (without parser) took 7952.36ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 87.8MB in the beginning and 118.5MB in the end (delta: -30.7MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB.
[2024-11-08 18:19:25,774 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 115.3MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:19:25,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.11ms. Allocated memory is still 146.8MB. Free memory was 87.5MB in the beginning and 116.7MB in the end (delta: -29.2MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB.
[2024-11-08 18:19:25,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.79ms. Allocated memory is still 146.8MB. Free memory was 116.7MB in the beginning and 115.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 18:19:25,775 INFO L158 Benchmark]: Boogie Preprocessor took 25.60ms. Allocated memory is still 146.8MB. Free memory was 115.6MB in the beginning and 114.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:19:25,776 INFO L158 Benchmark]: RCFGBuilder took 332.50ms. Allocated memory is still 146.8MB. Free memory was 114.0MB in the beginning and 104.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-11-08 18:19:25,776 INFO L158 Benchmark]: BuchiAutomizer took 7174.79ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 104.1MB in the beginning and 120.6MB in the end (delta: -16.5MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB.
[2024-11-08 18:19:25,781 INFO L158 Benchmark]: Witness Printer took 51.51ms. Allocated memory is still 195.0MB. Free memory was 120.6MB in the beginning and 118.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 18:19:25,783 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.81ms. Allocated memory is still 115.3MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 330.11ms. Allocated memory is still 146.8MB. Free memory was 87.5MB in the beginning and 116.7MB in the end (delta: -29.2MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 30.79ms. Allocated memory is still 146.8MB. Free memory was 116.7MB in the beginning and 115.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 25.60ms. Allocated memory is still 146.8MB. Free memory was 115.6MB in the beginning and 114.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 332.50ms. Allocated memory is still 146.8MB. Free memory was 114.0MB in the beginning and 104.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* BuchiAutomizer took 7174.79ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 104.1MB in the beginning and 120.6MB in the end (delta: -16.5MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB.
* Witness Printer took 51.51ms. Allocated memory is still 195.0MB. Free memory was 120.6MB in the beginning and 118.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Unknown variable: #t~ret0
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: The program execution was not completely translated back.
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: The program execution was not completely translated back.
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: The program execution was not completely translated back.
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: The program execution was not completely translated back.
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: The program execution was not completely translated back.
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: The program execution was not completely translated back.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Constructed decomposition of program
Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function \old(x) and consists of 6 locations. One deterministic module has affine ranking function null and consists of 10 locations. 2 modules have a trivial ranking function, the largest among these consists of 11 locations. The remainder module has 22 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 7.0s and 4 iterations. TraceHistogramMax:4. Analysis of lassos took 5.4s. Construction of modules took 0.3s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 4. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 181 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 129 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 261 IncrementalHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 52 mSDtfsCounter, 261 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp85 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq190 hnf92 smp100 dnf133 smp100 tf106 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 152ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s InitialAbstractionConstructionTime: 0.0s
- TerminationAnalysisResult: Nontermination possible
Buchi Automizer proved that your program is nonterminating for some inputs
- LassoShapedNonTerminationArgument [Line: 15]: Nontermination argument in form of an infinite program execution.
Nontermination argument in form of an infinite program execution.
Stem:
[L19] int x = __VERIFIER_nondet_int();
[L20] COND FALSE !(x < 0)
VAL [x=1]
[L21] CALL g(x)
VAL [\old(x)=1]
[L12] COND FALSE !(x == 0)
VAL [\old(x)=1, x=1]
[L15] CALL g(x - 1)
VAL [\old(x)=0]
[L12] COND TRUE x == 0
[L13] return 1;
VAL [\old(x)=0, \result=1]
[L15] RET g(x - 1)
VAL [\old(x)=1, x=1]
Loop:
[L15] CALL g(g(x - 1) + 1)
[L12] COND FALSE !(x == 0)
[L15] CALL g(x - 1)
[L12] COND FALSE !(x == 0)
[L15] CALL g(x - 1)
[L12] COND TRUE x == 0
[L13] return 1;
[L15] RET g(x - 1)
End of lasso representation.
- StatisticsResult: NonterminationArgumentStatistics
Fixpoint
- NonterminatingLassoResult [Line: 15]: Nonterminating execution
Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L19] int x = __VERIFIER_nondet_int();
[L20] COND FALSE !(x < 0)
VAL [x=1]
[L21] CALL g(x)
VAL [\old(x)=1]
[L12] COND FALSE !(x == 0)
VAL [\old(x)=1, x=1]
[L15] CALL g(x - 1)
VAL [\old(x)=0]
[L12] COND TRUE x == 0
[L13] return 1;
VAL [\old(x)=0, \result=1]
[L15] RET g(x - 1)
VAL [\old(x)=1, x=1]
Loop:
[L15] CALL g(g(x - 1) + 1)
[L12] COND FALSE !(x == 0)
[L15] CALL g(x - 1)
[L12] COND FALSE !(x == 0)
[L15] CALL g(x - 1)
[L12] COND TRUE x == 0
[L13] return 1;
[L15] RET g(x - 1)
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
[2024-11-08 18:19:25,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0
[2024-11-08 18:19:26,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0
[2024-11-08 18:19:26,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5f0570-d892-47b2-b677-5bab3678baa9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(TERM)