./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-numeric/TwoWay.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for termination
Using default analysis
Version 4f9af400
extending candidate: java
['java']
extending candidate: /usr/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/oracle-jdk-bin-*/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/openjdk-*/bin/java
['java', '/usr/bin/java']
extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java
['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java']
['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml', '-i', '../sv-benchmarks/c/termination-numeric/TwoWay.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(F end) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', '6e96af222dc7427442f09a30ad05a811063c14ee1b704442df6b3bb77339a035']
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-numeric/TwoWay.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 6e96af222dc7427442f09a30ad05a811063c14ee1b704442df6b3bb77339a035
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 23:47:57,098 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 23:47:57,169 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf
[2024-11-07 23:47:57,174 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 23:47:57,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 23:47:57,196 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 23:47:57,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 23:47:57,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 23:47:57,198 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 23:47:57,198 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 23:47:57,198 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 23:47:57,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 23:47:57,199 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 23:47:57,199 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2024-11-07 23:47:57,199 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2024-11-07 23:47:57,199 INFO L153 SettingsManager]: * Use old map elimination=false
[2024-11-07 23:47:57,199 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false
[2024-11-07 23:47:57,199 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true
[2024-11-07 23:47:57,200 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2024-11-07 23:47:57,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 23:47:57,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 23:47:57,201 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 23:47:57,201 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2024-11-07 23:47:57,201 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
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 -> 6e96af222dc7427442f09a30ad05a811063c14ee1b704442df6b3bb77339a035
[2024-11-07 23:47:57,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 23:47:57,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 23:47:57,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 23:47:57,461 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 23:47:57,461 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 23:47:57,465 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/TwoWay.c
[2024-11-07 23:47:58,749 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 23:47:58,958 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 23:47:58,958 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-numeric/TwoWay.c
[2024-11-07 23:47:58,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6b2cc8489/8e76ffc989424e9e93653e86c5310c3f/FLAGc3fa9a04c
[2024-11-07 23:47:59,319 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6b2cc8489/8e76ffc989424e9e93653e86c5310c3f
[2024-11-07 23:47:59,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 23:47:59,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 23:47:59,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 23:47:59,325 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 23:47:59,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 23:47:59,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c85a44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59, skipping insertion in model container
[2024-11-07 23:47:59,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,341 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 23:47:59,427 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 23:47:59,430 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 23:47:59,438 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 23:47:59,447 INFO L204 MainTranslator]: Completed translation
[2024-11-07 23:47:59,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59 WrapperNode
[2024-11-07 23:47:59,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 23:47:59,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 23:47:59,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 23:47:59,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 23:47:59,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,479 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19
[2024-11-07 23:47:59,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 23:47:59,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 23:47:59,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 23:47:59,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 23:47:59,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,496 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,503 INFO L175 MemorySlicer]: No memory access in input program.
[2024-11-07 23:47:59,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,508 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,509 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,514 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 23:47:59,515 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 23:47:59,515 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 23:47:59,515 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 23:47:59,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (1/1) ...
[2024-11-07 23:47:59,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:47:59,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:47:59,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:47:59,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2024-11-07 23:47:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure twoWay
[2024-11-07 23:47:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure twoWay
[2024-11-07 23:47:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 23:47:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 23:47:59,672 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 23:47:59,677 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 23:47:59,792 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live.
[2024-11-07 23:47:59,793 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 23:47:59,799 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 23:47:59,800 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-07 23:47:59,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:47:59 BoogieIcfgContainer
[2024-11-07 23:47:59,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 23:47:59,801 INFO L112 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2024-11-07 23:47:59,801 INFO L270 PluginConnector]: Initializing BuchiAutomizer...
[2024-11-07 23:47:59,805 INFO L274 PluginConnector]: BuchiAutomizer initialized
[2024-11-07 23:47:59,806 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-11-07 23:47:59,806 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 11:47:59" (1/3) ...
[2024-11-07 23:47:59,807 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4507dadc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 11:47:59, skipping insertion in model container
[2024-11-07 23:47:59,807 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-11-07 23:47:59,807 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:59" (2/3) ...
[2024-11-07 23:47:59,807 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4507dadc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 11:47:59, skipping insertion in model container
[2024-11-07 23:47:59,807 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2024-11-07 23:47:59,807 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:47:59" (3/3) ...
[2024-11-07 23:47:59,809 INFO L332 chiAutomizerObserver]: Analyzing ICFG TwoWay.c
[2024-11-07 23:47:59,851 INFO L300 stractBuchiCegarLoop]: Interprodecural is true
[2024-11-07 23:47:59,851 INFO L301 stractBuchiCegarLoop]: Hoare is None
[2024-11-07 23:47:59,851 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2024-11-07 23:47:59,851 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2024-11-07 23:47:59,852 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2024-11-07 23:47:59,853 INFO L305 stractBuchiCegarLoop]: Difference is false
[2024-11-07 23:47:59,853 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2024-11-07 23:47:59,853 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2024-11-07 23:47:59,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-07 23:47:59,870 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2024-11-07 23:47:59,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-07 23:47:59,870 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-07 23:47:59,875 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1]
[2024-11-07 23:47:59,875 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-11-07 23:47:59,876 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============
[2024-11-07 23:47:59,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-07 23:47:59,877 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2024-11-07 23:47:59,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-07 23:47:59,878 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-07 23:47:59,878 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1]
[2024-11-07 23:47:59,878 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-11-07 23:47:59,883 INFO L745 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret6#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 7#L42true assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 13#L45true assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 15#L48true call main_#t~ret6#1 := twoWay(1, main_~x~0#1);< 6#$Ultimate##0true
[2024-11-07 23:47:59,884 INFO L747 eck$LassoCheckResult]: Loop: 6#$Ultimate##0true ~terminate := #in~terminate;~n := #in~n; 11#L27true assume !(~n < 0);~m~0 := ~n; 12#L31true assume 0 != ~terminate;#t~post0 := ~m~0;~m~0 := #t~post0 - 1;havoc #t~post0; 5#L31-2true call #t~ret2 := twoWay(~terminate, ~m~0);< 6#$Ultimate##0true
[2024-11-07 23:47:59,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:47:59,888 INFO L85 PathProgramCache]: Analyzing trace with hash 42056122, now seen corresponding path program 1 times
[2024-11-07 23:47:59,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:47:59,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138002939]
[2024-11-07 23:47:59,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:47:59,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:47:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 23:47:59,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-07 23:47:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 23:47:59,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-07 23:47:59,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:47:59,959 INFO L85 PathProgramCache]: Analyzing trace with hash 927614, now seen corresponding path program 1 times
[2024-11-07 23:47:59,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:47:59,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762735293]
[2024-11-07 23:47:59,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:47:59,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:47:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 23:47:59,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-07 23:47:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 23:47:59,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-07 23:47:59,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:47:59,973 INFO L85 PathProgramCache]: Analyzing trace with hash 322591927, now seen corresponding path program 1 times
[2024-11-07 23:47:59,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:47:59,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611255223]
[2024-11-07 23:47:59,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:47:59,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:47:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 23:47:59,980 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-07 23:47:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 23:47:59,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-07 23:48:00,229 INFO L204 LassoAnalysis]: Preferences:
[2024-11-07 23:48:00,229 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-07 23:48:00,230 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-07 23:48:00,230 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-07 23:48:00,230 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-07 23:48:00,233 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,233 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-07 23:48:00,233 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-07 23:48:00,233 INFO L132 ssoRankerPreferences]: Filename of dumped script: TwoWay.c_Iteration1_Loop
[2024-11-07 23:48:00,233 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-07 23:48:00,234 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-07 23:48:00,249 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,271 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,303 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,422 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-07 23:48:00,423 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-07 23:48:00,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:00,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:00,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2024-11-07 23:48:00,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:00,434 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:00,447 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-07 23:48:00,448 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~ret2=0} Honda state: {twoWay_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-07 23:48:00,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0
[2024-11-07 23:48:00,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:00,466 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:00,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2024-11-07 23:48:00,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:00,470 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:00,482 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-07 23:48:00,482 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~m~0=0} Honda state: {twoWay_~m~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-07 23:48:00,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0
[2024-11-07 23:48:00,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:00,494 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:00,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2024-11-07 23:48:00,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:00,497 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:00,511 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-07 23:48:00,511 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~n=0} Honda state: {twoWay_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-07 23:48:00,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0
[2024-11-07 23:48:00,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:00,527 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:00,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2024-11-07 23:48:00,528 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:00,528 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:00,542 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-07 23:48:00,542 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~terminate=0} Honda state: {twoWay_~terminate=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-07 23:48:00,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0
[2024-11-07 23:48:00,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:00,556 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:00,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2024-11-07 23:48:00,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:00,558 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:00,570 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-07 23:48:00,570 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#res=0} Honda state: {twoWay_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-07 23:48:00,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0
[2024-11-07 23:48:00,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:00,583 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:00,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2024-11-07 23:48:00,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:00,585 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:00,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0
[2024-11-07 23:48:00,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:00,612 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:00,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2024-11-07 23:48:00,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-07 23:48:00,614 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:00,668 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-07 23:48:00,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0
[2024-11-07 23:48:00,675 INFO L204 LassoAnalysis]: Preferences:
[2024-11-07 23:48:00,675 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-07 23:48:00,675 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-07 23:48:00,675 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-07 23:48:00,675 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-07 23:48:00,675 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,675 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-07 23:48:00,675 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-07 23:48:00,675 INFO L132 ssoRankerPreferences]: Filename of dumped script: TwoWay.c_Iteration1_Loop
[2024-11-07 23:48:00,675 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-07 23:48:00,675 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-07 23:48:00,677 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,683 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,703 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:00,767 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-07 23:48:00,770 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-07 23:48:00,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:00,773 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:00,776 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
[2024-11-07 23:48:00,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2024-11-07 23:48:00,788 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-07 23:48:00,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-07 23:48:00,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-07 23:48:00,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-07 23:48:00,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-07 23:48:00,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-07 23:48:00,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-07 23:48:00,793 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-07 23:48:00,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0
[2024-11-07 23:48:00,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:00,806 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:00,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2024-11-07 23:48:00,809 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
[2024-11-07 23:48:00,819 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-07 23:48:00,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-07 23:48:00,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-07 23:48:00,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-07 23:48:00,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-07 23:48:00,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-07 23:48:00,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-07 23:48:00,823 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-07 23:48:00,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0
[2024-11-07 23:48:00,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:00,841 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:00,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2024-11-07 23:48:00,845 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
[2024-11-07 23:48:00,854 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-07 23:48:00,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-07 23:48:00,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-07 23:48:00,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-07 23:48:00,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-07 23:48:00,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-07 23:48:00,855 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-07 23:48:00,857 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-07 23:48:00,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0
[2024-11-07 23:48:00,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:00,872 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:00,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process
[2024-11-07 23:48:00,874 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
[2024-11-07 23:48:00,884 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-07 23:48:00,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-07 23:48:00,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-07 23:48:00,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-07 23:48:00,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-07 23:48:00,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-07 23:48:00,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-07 23:48:00,888 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-07 23:48:00,890 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2024-11-07 23:48:00,892 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2024-11-07 23:48:00,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:00,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:00,897 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:00,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process
[2024-11-07 23:48:00,904 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-07 23:48:00,904 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-11-07 23:48:00,904 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-07 23:48:00,905 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(twoWay_#in~n) = 2*twoWay_#in~n + 1
Supporting invariants []
[2024-11-07 23:48:00,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0
[2024-11-07 23:48:00,917 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-11-07 23:48:00,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:48:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:48:00,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-07 23:48:00,955 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:48:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:48:00,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-07 23:48:00,975 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:48:01,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:48:01,042 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates
[2024-11-07 23:48:01,043 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2024-11-07 23:48:01,146 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 45 states and 57 transitions. Complement of second has 20 states.
[2024-11-07 23:48:01,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states
[2024-11-07 23:48:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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)
[2024-11-07 23:48:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions.
[2024-11-07 23:48:01,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 4 letters.
[2024-11-07 23:48:01,155 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-07 23:48:01,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 9 letters. Loop has 4 letters.
[2024-11-07 23:48:01,156 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-07 23:48:01,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 8 letters.
[2024-11-07 23:48:01,156 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-07 23:48:01,156 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 57 transitions.
[2024-11-07 23:48:01,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2024-11-07 23:48:01,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 23 states and 26 transitions.
[2024-11-07 23:48:01,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14
[2024-11-07 23:48:01,161 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16
[2024-11-07 23:48:01,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 26 transitions.
[2024-11-07 23:48:01,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-07 23:48:01,162 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 26 transitions.
[2024-11-07 23:48:01,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 26 transitions.
[2024-11-07 23:48:01,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 16.
[2024-11-07 23:48:01,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 23:48:01,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions.
[2024-11-07 23:48:01,180 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions.
[2024-11-07 23:48:01,180 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions.
[2024-11-07 23:48:01,180 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============
[2024-11-07 23:48:01,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions.
[2024-11-07 23:48:01,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2024-11-07 23:48:01,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2024-11-07 23:48:01,181 INFO L119 BuchiIsEmpty]: Starting construction of run
[2024-11-07 23:48:01,181 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 23:48:01,181 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2024-11-07 23:48:01,181 INFO L745 eck$LassoCheckResult]: Stem: 134#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 135#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret6#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 146#L42 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 143#L45 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 139#L48 call main_#t~ret6#1 := twoWay(1, main_~x~0#1);< 148#$Ultimate##0 ~terminate := #in~terminate;~n := #in~n; 136#L27 assume !(~n < 0);~m~0 := ~n; 138#L31 assume !(0 != ~terminate);#t~post1 := ~m~0;~m~0 := 1 + #t~post1;havoc #t~post1; 142#L31-2
[2024-11-07 23:48:01,181 INFO L747 eck$LassoCheckResult]: Loop: 142#L31-2 call #t~ret2 := twoWay(~terminate, ~m~0);< 144#$Ultimate##0 ~terminate := #in~terminate;~n := #in~n; 147#L27 assume !(~n < 0);~m~0 := ~n; 149#L31 assume 0 != ~terminate;#t~post0 := ~m~0;~m~0 := #t~post0 - 1;havoc #t~post0; 142#L31-2
[2024-11-07 23:48:01,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:48:01,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1236519797, now seen corresponding path program 1 times
[2024-11-07 23:48:01,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:48:01,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349090459]
[2024-11-07 23:48:01,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:48:01,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:48:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:48:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:48:01,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 23:48:01,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349090459]
[2024-11-07 23:48:01,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349090459] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 23:48:01,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 23:48:01,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 23:48:01,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436678386]
[2024-11-07 23:48:01,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 23:48:01,289 INFO L750 eck$LassoCheckResult]: stem already infeasible
[2024-11-07 23:48:01,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:48:01,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1876964, now seen corresponding path program 2 times
[2024-11-07 23:48:01,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 23:48:01,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207674242]
[2024-11-07 23:48:01,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 23:48:01,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 23:48:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 23:48:01,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-07 23:48:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 23:48:01,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-07 23:48:01,578 INFO L204 LassoAnalysis]: Preferences:
[2024-11-07 23:48:01,578 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-07 23:48:01,578 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-07 23:48:01,578 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-07 23:48:01,578 INFO L128 ssoRankerPreferences]: Use exernal solver: true
[2024-11-07 23:48:01,578 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:01,578 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-07 23:48:01,578 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-07 23:48:01,578 INFO L132 ssoRankerPreferences]: Filename of dumped script: TwoWay.c_Iteration2_Loop
[2024-11-07 23:48:01,578 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-07 23:48:01,578 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-07 23:48:01,579 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:01,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:01,593 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:01,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:01,609 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:01,619 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:01,642 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:01,802 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-07 23:48:01,802 INFO L365 LassoAnalysis]: Checking for nontermination...
[2024-11-07 23:48:01,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:01,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:01,808 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:01,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process
[2024-11-07 23:48:01,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:01,812 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:01,826 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-07 23:48:01,826 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~ret2=0} Honda state: {twoWay_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-07 23:48:01,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0
[2024-11-07 23:48:01,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:01,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:01,846 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:01,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2024-11-07 23:48:01,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:01,853 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:01,867 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-07 23:48:01,867 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~post0=0} Honda state: {twoWay_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-07 23:48:01,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0
[2024-11-07 23:48:01,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:01,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:01,882 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:01,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process
[2024-11-07 23:48:01,885 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:01,885 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:01,900 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-07 23:48:01,900 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~post1=0} Honda state: {twoWay_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-07 23:48:01,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0
[2024-11-07 23:48:01,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:01,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:01,917 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:01,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process
[2024-11-07 23:48:01,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:01,930 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:01,943 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-07 23:48:01,943 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~n=0} Honda state: {twoWay_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-07 23:48:01,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0
[2024-11-07 23:48:01,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:01,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:01,958 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:01,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process
[2024-11-07 23:48:01,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:01,961 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:01,975 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-07 23:48:01,975 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#res=0} Honda state: {twoWay_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-07 23:48:01,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0
[2024-11-07 23:48:01,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:01,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:01,998 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:02,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process
[2024-11-07 23:48:02,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:02,006 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:02,026 INFO L398 LassoAnalysis]: Proved nontermination for one component.
[2024-11-07 23:48:02,026 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#in~terminate=3, twoWay_~terminate=3} Honda state: {twoWay_#in~terminate=3, twoWay_~terminate=3} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2024-11-07 23:48:02,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0
[2024-11-07 23:48:02,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:02,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:02,039 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:02,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process
[2024-11-07 23:48:02,042 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2024-11-07 23:48:02,042 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:02,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0
[2024-11-07 23:48:02,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:02,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:02,076 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:02,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process
[2024-11-07 23:48:02,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2024-11-07 23:48:02,078 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2024-11-07 23:48:02,874 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2024-11-07 23:48:02,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0
[2024-11-07 23:48:02,879 INFO L204 LassoAnalysis]: Preferences:
[2024-11-07 23:48:02,879 INFO L125 ssoRankerPreferences]: Compute integeral hull: false
[2024-11-07 23:48:02,879 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2024-11-07 23:48:02,880 INFO L127 ssoRankerPreferences]: Term annotations enabled: false
[2024-11-07 23:48:02,880 INFO L128 ssoRankerPreferences]: Use exernal solver: false
[2024-11-07 23:48:02,880 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:02,880 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false
[2024-11-07 23:48:02,880 INFO L131 ssoRankerPreferences]: Path of dumped script:
[2024-11-07 23:48:02,880 INFO L132 ssoRankerPreferences]: Filename of dumped script: TwoWay.c_Iteration2_Loop
[2024-11-07 23:48:02,880 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank
[2024-11-07 23:48:02,880 INFO L241 LassoAnalysis]: Starting lasso preprocessing...
[2024-11-07 23:48:02,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:02,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:02,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:02,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:02,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:02,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:02,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2024-11-07 23:48:02,959 INFO L259 LassoAnalysis]: Preprocessing complete.
[2024-11-07 23:48:02,960 INFO L451 LassoAnalysis]: Using template 'affine'.
[2024-11-07 23:48:02,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:02,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:02,966 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:02,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process
[2024-11-07 23:48:02,968 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
[2024-11-07 23:48:02,978 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-07 23:48:02,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-07 23:48:02,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-07 23:48:02,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-07 23:48:02,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-07 23:48:02,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-07 23:48:02,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-07 23:48:02,980 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-07 23:48:02,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0
[2024-11-07 23:48:02,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:02,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:02,993 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:02,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process
[2024-11-07 23:48:02,994 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
[2024-11-07 23:48:03,004 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-07 23:48:03,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-07 23:48:03,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-07 23:48:03,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-07 23:48:03,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-07 23:48:03,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-07 23:48:03,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-07 23:48:03,006 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-07 23:48:03,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0
[2024-11-07 23:48:03,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:03,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:03,042 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:03,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process
[2024-11-07 23:48:03,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0
[2024-11-07 23:48:03,046 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
[2024-11-07 23:48:03,066 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-07 23:48:03,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-07 23:48:03,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-07 23:48:03,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-07 23:48:03,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-07 23:48:03,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-07 23:48:03,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-07 23:48:03,074 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-07 23:48:03,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0
[2024-11-07 23:48:03,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:03,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:03,115 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:03,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process
[2024-11-07 23:48:03,117 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
[2024-11-07 23:48:03,126 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-07 23:48:03,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-07 23:48:03,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-07 23:48:03,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-07 23:48:03,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-07 23:48:03,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-07 23:48:03,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-07 23:48:03,133 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-07 23:48:03,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0
[2024-11-07 23:48:03,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:03,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:03,148 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:03,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process
[2024-11-07 23:48:03,150 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
[2024-11-07 23:48:03,159 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-07 23:48:03,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-07 23:48:03,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-07 23:48:03,160 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2024-11-07 23:48:03,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-07 23:48:03,162 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2024-11-07 23:48:03,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-07 23:48:03,166 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-07 23:48:03,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0
[2024-11-07 23:48:03,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:03,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:03,179 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:03,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process
[2024-11-07 23:48:03,181 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
[2024-11-07 23:48:03,190 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-07 23:48:03,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-07 23:48:03,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-07 23:48:03,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-07 23:48:03,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-07 23:48:03,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-07 23:48:03,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-07 23:48:03,193 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings.
[2024-11-07 23:48:03,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0
[2024-11-07 23:48:03,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:03,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:03,205 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:03,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process
[2024-11-07 23:48:03,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2024-11-07 23:48:03,219 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2024-11-07 23:48:03,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2024-11-07 23:48:03,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2024-11-07 23:48:03,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2024-11-07 23:48:03,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2024-11-07 23:48:03,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2024-11-07 23:48:03,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2024-11-07 23:48:03,223 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2024-11-07 23:48:03,224 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2024-11-07 23:48:03,224 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero.
[2024-11-07 23:48:03,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2024-11-07 23:48:03,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 23:48:03,227 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2024-11-07 23:48:03,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process
[2024-11-07 23:48:03,228 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2024-11-07 23:48:03,228 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2024-11-07 23:48:03,228 INFO L474 LassoAnalysis]: Proved termination.
[2024-11-07 23:48:03,228 INFO L476 LassoAnalysis]: Termination argument consisting of:
Ranking function f(twoWay_~m~0) = 2*twoWay_~m~0 + 1
Supporting invariants []
[2024-11-07 23:48:03,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0
[2024-11-07 23:48:03,240 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2024-11-07 23:48:03,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 23:48:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:48:03,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-07 23:48:03,270 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:48:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 23:48:03,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-07 23:48:03,289 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 23:48:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 23:48:03,319 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates
[2024-11-07 23:48:03,319 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 23:48:03,370 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 31 transitions. Complement of second has 11 states.
[2024-11-07 23:48:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states
[2024-11-07 23:48:03,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 23:48:03,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions.
[2024-11-07 23:48:03,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 4 letters.
[2024-11-07 23:48:03,372 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-07 23:48:03,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 12 letters. Loop has 4 letters.
[2024-11-07 23:48:03,372 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-07 23:48:03,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 8 letters.
[2024-11-07 23:48:03,372 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2024-11-07 23:48:03,372 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions.
[2024-11-07 23:48:03,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2024-11-07 23:48:03,374 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 30 transitions.
[2024-11-07 23:48:03,374 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16
[2024-11-07 23:48:03,374 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17
[2024-11-07 23:48:03,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions.
[2024-11-07 23:48:03,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2024-11-07 23:48:03,374 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 30 transitions.
[2024-11-07 23:48:03,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions.
[2024-11-07 23:48:03,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24.
[2024-11-07 23:48:03,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (7), 5 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 23:48:03,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions.
[2024-11-07 23:48:03,376 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions.
[2024-11-07 23:48:03,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 23:48:03,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 23:48:03,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 23:48:03,378 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 23:48:03,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 23:48:03,389 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions.
[2024-11-07 23:48:03,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions.
[2024-11-07 23:48:03,390 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2024-11-07 23:48:03,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions.
[2024-11-07 23:48:03,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2024-11-07 23:48:03,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2024-11-07 23:48:03,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2024-11-07 23:48:03,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2024-11-07 23:48:03,390 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-07 23:48:03,390 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-07 23:48:03,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 23:48:03,391 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-07 23:48:03,391 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============
[2024-11-07 23:48:03,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2024-11-07 23:48:03,391 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2024-11-07 23:48:03,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2024-11-07 23:48:03,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 11:48:03 BoogieIcfgContainer
[2024-11-07 23:48:03,397 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2024-11-07 23:48:03,397 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 23:48:03,397 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-07 23:48:03,398 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-07 23:48:03,398 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:47:59" (3/4) ...
[2024-11-07 23:48:03,400 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-07 23:48:03,400 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 23:48:03,401 INFO L158 Benchmark]: Toolchain (without parser) took 4077.79ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 71.7MB in the end (delta: 21.7MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB.
[2024-11-07 23:48:03,401 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:48:03,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 124.03ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 83.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 23:48:03,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.45ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 82.2MB in the end (delta: 852.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:48:03,401 INFO L158 Benchmark]: Boogie Preprocessor took 28.55ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.3MB in the end (delta: 909.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:48:03,402 INFO L158 Benchmark]: RCFGBuilder took 285.50ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 71.6MB in the end (delta: 9.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-07 23:48:03,402 INFO L158 Benchmark]: BuchiAutomizer took 3595.85ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 71.7MB in the end (delta: -113.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:48:03,402 INFO L158 Benchmark]: Witness Printer took 2.74ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 71.7MB in the end (delta: 40.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 23:48:03,403 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 124.03ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 83.1MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 36.45ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 82.2MB in the end (delta: 852.5kB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 28.55ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.3MB in the end (delta: 909.4kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 285.50ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 71.6MB in the end (delta: 9.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* BuchiAutomizer took 3595.85ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 71.7MB in the end (delta: -113.1kB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 2.74ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 71.7MB in the end (delta: 40.4kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Constructed decomposition of program
Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) 2 * \old(n)) + 1) and consists of 6 locations. One deterministic module has affine ranking function (((long) 2 * m) + 1) and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 3.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 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: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 30 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf93 smp100 dnf141 smp100 tf107 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s
- TerminationAnalysisResult: Termination proven
Buchi Automizer proved that your program is terminating
RESULT: Ultimate proved your program to be correct!
[2024-11-07 23:48:03,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0
[2024-11-07 23:48:03,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE