./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.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-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.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', 'da22ffb72429307957b6c0c7dbecd683a89e13ab06c6f4d1911b51bf365e4d9f'] 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-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.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 da22ffb72429307957b6c0c7dbecd683a89e13ab06c6f4d1911b51bf365e4d9f --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:47:16,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:47:17,083 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-07 23:47:17,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:47:17,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:47:17,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:47:17,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:47:17,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:47:17,121 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:47:17,121 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:47:17,122 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:47:17,122 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:47:17,123 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:47:17,123 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-07 23:47:17,123 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-07 23:47:17,124 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-07 23:47:17,124 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-07 23:47:17,124 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-07 23:47:17,124 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-07 23:47:17,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:47:17,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-07 23:47:17,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:47:17,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:47:17,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-07 23:47:17,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-07 23:47:17,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-07 23:47:17,125 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:47:17,125 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:47:17,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:47:17,125 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-07 23:47:17,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:47:17,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:47:17,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:47:17,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:47:17,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:47:17,126 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-07 23:47:17,126 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 -> da22ffb72429307957b6c0c7dbecd683a89e13ab06c6f4d1911b51bf365e4d9f [2024-11-07 23:47:17,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:47:17,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:47:17,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:47:17,448 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:47:17,448 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:47:17,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2024-11-07 23:47:18,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:47:18,971 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:47:18,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2024-11-07 23:47:18,980 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/acd540916/9e21cb526e004367bb6df6b38daa8432/FLAGb4334df4a [2024-11-07 23:47:19,000 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/acd540916/9e21cb526e004367bb6df6b38daa8432 [2024-11-07 23:47:19,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:47:19,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:47:19,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:47:19,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:47:19,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:47:19,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46fcee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19, skipping insertion in model container [2024-11-07 23:47:19,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,027 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:47:19,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:47:19,154 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:47:19,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:47:19,180 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:47:19,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19 WrapperNode [2024-11-07 23:47:19,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:47:19,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:47:19,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:47:19,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:47:19,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,203 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2024-11-07 23:47:19,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:47:19,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:47:19,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:47:19,204 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:47:19,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,212 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,217 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-07 23:47:19,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:47:19,231 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:47:19,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:47:19,231 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:47:19,232 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (1/1) ... [2024-11-07 23:47:19,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:19,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:19,272 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 23:47:19,279 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 23:47:19,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:47:19,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:47:19,364 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:47:19,366 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:47:19,413 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-07 23:47:19,414 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:47:19,422 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:47:19,422 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 23:47:19,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:47:19 BoogieIcfgContainer [2024-11-07 23:47:19,422 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:47:19,423 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-07 23:47:19,424 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-07 23:47:19,428 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-07 23:47:19,429 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-07 23:47:19,429 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 11:47:19" (1/3) ... [2024-11-07 23:47:19,430 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b19f142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 11:47:19, skipping insertion in model container [2024-11-07 23:47:19,430 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-07 23:47:19,430 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:47:19" (2/3) ... [2024-11-07 23:47:19,430 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b19f142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 11:47:19, skipping insertion in model container [2024-11-07 23:47:19,430 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-07 23:47:19,431 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:47:19" (3/3) ... [2024-11-07 23:47:19,432 INFO L332 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a.c [2024-11-07 23:47:19,481 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-07 23:47:19,481 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-07 23:47:19,482 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-07 23:47:19,482 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-07 23:47:19,482 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-07 23:47:19,482 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-07 23:47:19,482 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-07 23:47:19,482 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-07 23:47:19,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:19,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-07 23:47:19,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-07 23:47:19,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-07 23:47:19,502 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-07 23:47:19,502 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-07 23:47:19,502 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-07 23:47:19,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:19,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-07 23:47:19,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-07 23:47:19,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-07 23:47:19,503 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-07 23:47:19,503 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-07 23:47:19,509 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 7#L21-2true [2024-11-07 23:47:19,509 INFO L747 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 4#L21true assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 7#L21-2true [2024-11-07 23:47:19,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:19,514 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-07 23:47:19,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:19,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492329224] [2024-11-07 23:47:19,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:19,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:19,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:19,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:19,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:19,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2024-11-07 23:47:19,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:19,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256278986] [2024-11-07 23:47:19,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:19,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:19,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:19,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:19,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:19,613 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-11-07 23:47:19,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:19,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188999009] [2024-11-07 23:47:19,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:19,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:19,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:19,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:19,718 INFO L204 LassoAnalysis]: Preferences: [2024-11-07 23:47:19,718 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-07 23:47:19,718 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-07 23:47:19,718 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-07 23:47:19,718 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-07 23:47:19,719 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:19,719 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-07 23:47:19,719 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-07 23:47:19,719 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration1_Loop [2024-11-07 23:47:19,719 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-07 23:47:19,719 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-07 23:47:19,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:19,745 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:19,752 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:19,757 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:19,760 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:19,769 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:19,772 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:19,884 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-07 23:47:19,885 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-07 23:47:19,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:19,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:19,889 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 23:47:19,890 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 23:47:19,891 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:19,891 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:19,923 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 23:47:19,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:19,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:19,925 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 23:47:19,927 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 23:47:19,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-07 23:47:19,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:19,965 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-07 23:47:19,970 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 23:47:19,970 INFO L204 LassoAnalysis]: Preferences: [2024-11-07 23:47:19,970 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-07 23:47:19,970 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-07 23:47:19,970 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-07 23:47:19,971 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-07 23:47:19,971 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:19,971 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-07 23:47:19,971 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-07 23:47:19,971 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration1_Loop [2024-11-07 23:47:19,971 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-07 23:47:19,971 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-07 23:47:19,973 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:19,981 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:19,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:19,990 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:19,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,003 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,076 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-07 23:47:20,081 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-07 23:47:20,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:20,083 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 23:47:20,085 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 23:47:20,086 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 23:47:20,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:20,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:20,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:20,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:20,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:20,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:20,107 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:20,110 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-07 23:47:20,115 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-07 23:47:20,117 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-07 23:47:20,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:20,122 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 23:47:20,123 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 23:47:20,124 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-07 23:47:20,124 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-07 23:47:20,124 INFO L474 LassoAnalysis]: Proved termination. [2024-11-07 23:47:20,125 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2024-11-07 23:47:20,136 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 23:47:20,139 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-07 23:47:20,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:20,175 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 23:47:20,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:20,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:47:20,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:20,213 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 23:47:20,239 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-07 23:47:20,241 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:20,290 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 24 transitions. Complement of second has 6 states. [2024-11-07 23:47:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-07 23:47:20,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:20,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-11-07 23:47:20,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-07 23:47:20,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:20,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-07 23:47:20,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:20,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-07 23:47:20,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:20,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2024-11-07 23:47:20,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-07 23:47:20,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 8 states and 11 transitions. [2024-11-07 23:47:20,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-07 23:47:20,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-07 23:47:20,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-11-07 23:47:20,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-07 23:47:20,312 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-07 23:47:20,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-11-07 23:47:20,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-07 23:47:20,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:20,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-11-07 23:47:20,331 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-07 23:47:20,332 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-07 23:47:20,332 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-07 23:47:20,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2024-11-07 23:47:20,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-07 23:47:20,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-07 23:47:20,333 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-07 23:47:20,333 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-07 23:47:20,333 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-07 23:47:20,333 INFO L745 eck$LassoCheckResult]: Stem: 65#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 66#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 68#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 61#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 62#L21-2 [2024-11-07 23:47:20,333 INFO L747 eck$LassoCheckResult]: Loop: 62#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 67#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 62#L21-2 [2024-11-07 23:47:20,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:20,335 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2024-11-07 23:47:20,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:20,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8420942] [2024-11-07 23:47:20,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:20,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:20,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:20,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:20,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:20,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2024-11-07 23:47:20,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:20,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796794569] [2024-11-07 23:47:20,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:20,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:20,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:20,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:20,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:20,363 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2024-11-07 23:47:20,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:20,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963259027] [2024-11-07 23:47:20,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:20,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:20,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:20,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:20,430 INFO L204 LassoAnalysis]: Preferences: [2024-11-07 23:47:20,430 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-07 23:47:20,430 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-07 23:47:20,430 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-07 23:47:20,430 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-07 23:47:20,430 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,430 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-07 23:47:20,430 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-07 23:47:20,430 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration2_Loop [2024-11-07 23:47:20,430 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-07 23:47:20,430 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-07 23:47:20,432 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,439 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,450 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,459 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,465 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,528 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-07 23:47:20,528 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-07 23:47:20,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:20,532 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 23:47:20,534 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 23:47:20,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:20,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:20,558 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:20,558 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:20,573 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 23:47:20,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:20,576 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 23:47:20,578 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 23:47:20,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:20,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:20,595 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:20,595 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:20,610 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 23:47:20,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:20,612 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 23:47:20,614 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 23:47:20,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:20,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:20,637 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:20,637 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:20,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-07 23:47:20,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:20,654 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 23:47:20,656 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 23:47:20,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:20,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:20,680 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:20,680 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:20,691 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 23:47:20,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:20,693 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 23:47:20,695 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 23:47:20,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:20,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:20,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-07 23:47:20,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:20,728 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 23:47:20,729 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 23:47:20,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-07 23:47:20,730 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:20,768 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-07 23:47:20,773 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 23:47:20,773 INFO L204 LassoAnalysis]: Preferences: [2024-11-07 23:47:20,773 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-07 23:47:20,773 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-07 23:47:20,773 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-07 23:47:20,773 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-07 23:47:20,773 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,773 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-07 23:47:20,773 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-07 23:47:20,773 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration2_Loop [2024-11-07 23:47:20,773 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-07 23:47:20,773 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-07 23:47:20,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,781 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,794 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,806 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:20,867 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-07 23:47:20,867 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-07 23:47:20,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:20,870 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 23:47:20,871 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 23:47:20,873 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 23:47:20,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:20,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:20,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:20,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:20,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-07 23:47:20,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-07 23:47:20,892 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-07 23:47:20,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-07 23:47:20,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:20,910 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 23:47:20,911 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 23:47:20,912 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 23:47:20,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:20,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:20,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:20,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:20,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:20,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:20,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:20,928 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-07 23:47:20,942 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 23:47:20,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:20,945 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 23:47:20,947 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 23:47:20,947 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 23:47:20,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:20,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:20,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:20,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:20,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:20,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:20,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:20,966 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-07 23:47:20,969 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-07 23:47:20,969 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-07 23:47:20,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:20,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:20,972 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 23:47:20,973 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 23:47:20,974 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-07 23:47:20,974 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-07 23:47:20,974 INFO L474 LassoAnalysis]: Proved termination. [2024-11-07 23:47:20,974 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2024-11-07 23:47:20,987 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 23:47:20,987 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-07 23:47:21,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:21,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 23:47:21,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:21,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:47:21,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:21,070 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 23:47:21,070 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-07 23:47:21,071 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:21,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-07 23:47:21,091 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 17 transitions. Complement of second has 5 states. [2024-11-07 23:47:21,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-07 23:47:21,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:21,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-11-07 23:47:21,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-07 23:47:21,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:21,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-07 23:47:21,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:21,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2024-11-07 23:47:21,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:21,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2024-11-07 23:47:21,095 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-07 23:47:21,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2024-11-07 23:47:21,095 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-07 23:47:21,095 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-07 23:47:21,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2024-11-07 23:47:21,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-07 23:47:21,095 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-07 23:47:21,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2024-11-07 23:47:21,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-07 23:47:21,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:21,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-11-07 23:47:21,097 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-07 23:47:21,097 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-07 23:47:21,097 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-07 23:47:21,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2024-11-07 23:47:21,097 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-07 23:47:21,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-07 23:47:21,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-07 23:47:21,097 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2024-11-07 23:47:21,097 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-07 23:47:21,098 INFO L745 eck$LassoCheckResult]: Stem: 123#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 127#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 119#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 120#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 128#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 125#L21-2 [2024-11-07 23:47:21,098 INFO L747 eck$LassoCheckResult]: Loop: 125#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 126#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 125#L21-2 [2024-11-07 23:47:21,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:21,098 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 2 times [2024-11-07 23:47:21,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:21,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558616169] [2024-11-07 23:47:21,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:21,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:21,110 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 23:47:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:21,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:21,116 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:21,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:21,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2024-11-07 23:47:21,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:21,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999494098] [2024-11-07 23:47:21,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:21,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:21,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:21,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:21,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:21,123 INFO L85 PathProgramCache]: Analyzing trace with hash 295744366, now seen corresponding path program 2 times [2024-11-07 23:47:21,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:21,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416658237] [2024-11-07 23:47:21,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:21,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:21,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:21,145 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:21,188 INFO L204 LassoAnalysis]: Preferences: [2024-11-07 23:47:21,188 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-07 23:47:21,188 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-07 23:47:21,188 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-07 23:47:21,188 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-07 23:47:21,188 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,188 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-07 23:47:21,188 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-07 23:47:21,188 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration3_Loop [2024-11-07 23:47:21,188 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-07 23:47:21,188 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-07 23:47:21,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,202 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,210 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,283 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-07 23:47:21,283 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-07 23:47:21,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:21,288 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 23:47:21,290 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 23:47:21,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:21,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:21,313 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:21,313 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:21,327 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 23:47:21,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:21,330 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 23:47:21,332 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 23:47:21,333 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:21,333 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:21,357 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:21,357 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:21,369 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 23:47:21,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:21,371 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 23:47:21,372 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 23:47:21,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:21,372 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:21,383 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:21,384 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:21,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-07 23:47:21,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:21,396 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 23:47:21,397 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 23:47:21,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:21,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:21,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-07 23:47:21,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:21,426 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 23:47:21,427 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 23:47:21,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-07 23:47:21,428 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:21,461 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-07 23:47:21,467 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 23:47:21,467 INFO L204 LassoAnalysis]: Preferences: [2024-11-07 23:47:21,467 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-07 23:47:21,468 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-07 23:47:21,468 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-07 23:47:21,468 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-07 23:47:21,468 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,468 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-07 23:47:21,468 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-07 23:47:21,468 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration3_Loop [2024-11-07 23:47:21,468 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-07 23:47:21,469 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-07 23:47:21,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,476 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,479 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,481 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,484 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,490 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,497 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:21,554 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-07 23:47:21,556 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-07 23:47:21,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:21,558 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 23:47:21,560 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 23:47:21,561 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 23:47:21,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:21,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:21,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:21,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:21,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:21,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:21,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:21,575 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-07 23:47:21,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-11-07 23:47:21,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:21,588 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 23:47:21,589 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 23:47:21,589 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 23:47:21,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:21,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:21,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:21,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:21,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:21,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:21,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:21,601 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-07 23:47:21,612 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 23:47:21,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:21,615 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 23:47:21,616 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 23:47:21,616 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 23:47:21,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:21,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:21,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:21,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:21,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:21,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:21,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:21,628 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-07 23:47:21,638 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 23:47:21,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:21,641 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 23:47:21,641 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 23:47:21,642 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 23:47:21,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:21,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:21,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:21,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:21,654 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-07 23:47:21,655 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-07 23:47:21,659 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-07 23:47:21,673 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 23:47:21,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:21,676 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 23:47:21,678 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 23:47:21,679 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 23:47:21,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:21,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:21,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:21,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:21,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:21,693 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:21,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:21,695 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-07 23:47:21,698 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-07 23:47:21,698 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-07 23:47:21,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:21,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:21,700 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 23:47:21,703 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 23:47:21,703 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-07 23:47:21,703 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-07 23:47:21,704 INFO L474 LassoAnalysis]: Proved termination. [2024-11-07 23:47:21,704 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2024-11-07 23:47:21,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-07 23:47:21,719 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-07 23:47:21,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:21,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 23:47:21,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:21,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:47:21,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:21,766 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 23:47:21,766 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-07 23:47:21,766 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:21,785 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 5 states. [2024-11-07 23:47:21,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-07 23:47:21,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-11-07 23:47:21,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-07 23:47:21,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:21,787 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-07 23:47:21,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:21,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 23:47:21,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:21,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:47:21,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:21,841 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 23:47:21,841 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-07 23:47:21,841 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:21,862 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 5 states. [2024-11-07 23:47:21,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-07 23:47:21,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:21,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-11-07 23:47:21,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-07 23:47:21,863 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:21,863 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-07 23:47:21,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:21,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 23:47:21,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:21,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:47:21,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:21,920 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 23:47:21,920 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-07 23:47:21,921 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:21,937 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 24 transitions. Complement of second has 4 states. [2024-11-07 23:47:21,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-07 23:47:21,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:21,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-07 23:47:21,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2024-11-07 23:47:21,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:21,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2024-11-07 23:47:21,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:21,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-07 23:47:21,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:21,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 24 transitions. [2024-11-07 23:47:21,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-07 23:47:21,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 20 transitions. [2024-11-07 23:47:21,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-11-07 23:47:21,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-07 23:47:21,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2024-11-07 23:47:21,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-07 23:47:21,942 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2024-11-07 23:47:21,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2024-11-07 23:47:21,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 6. [2024-11-07 23:47:21,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:21,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2024-11-07 23:47:21,946 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2024-11-07 23:47:21,946 INFO L425 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2024-11-07 23:47:21,946 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-07 23:47:21,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2024-11-07 23:47:21,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-07 23:47:21,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-07 23:47:21,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-07 23:47:21,948 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-07 23:47:21,948 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-07 23:47:21,948 INFO L745 eck$LassoCheckResult]: Stem: 280#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 281#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 277#L21-2 [2024-11-07 23:47:21,948 INFO L747 eck$LassoCheckResult]: Loop: 277#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 276#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 277#L21-2 [2024-11-07 23:47:21,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:21,949 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-07 23:47:21,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:21,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567388222] [2024-11-07 23:47:21,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:21,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:21,954 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:21,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:21,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:21,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2024-11-07 23:47:21,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:21,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448786700] [2024-11-07 23:47:21,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:21,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:21,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:21,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:21,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:21,969 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 3 times [2024-11-07 23:47:21,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:21,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244729182] [2024-11-07 23:47:21,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:21,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:21,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:21,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:22,015 INFO L204 LassoAnalysis]: Preferences: [2024-11-07 23:47:22,015 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-07 23:47:22,015 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-07 23:47:22,015 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-07 23:47:22,015 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-07 23:47:22,016 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,016 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-07 23:47:22,016 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-07 23:47:22,016 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration4_Loop [2024-11-07 23:47:22,016 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-07 23:47:22,016 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-07 23:47:22,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,021 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,025 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,083 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-07 23:47:22,084 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-07 23:47:22,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,087 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 23:47:22,088 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 23:47:22,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:22,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:22,108 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:22,108 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:22,118 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 23:47:22,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,121 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 23:47:22,121 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 23:47:22,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:22,123 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:22,140 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:22,140 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~d~0#1=1} Honda state: {ULTIMATE.start_main_~d~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:22,153 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 23:47:22,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,155 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 23:47:22,155 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 23:47:22,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:22,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:22,167 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:22,167 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:22,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-07 23:47:22,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,179 INFO L229 MonitoredProcess]: Starting monitored process 30 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 23:47:22,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-07 23:47:22,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:22,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:22,199 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:22,199 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:22,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-07 23:47:22,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,212 INFO L229 MonitoredProcess]: Starting monitored process 31 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 23:47:22,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-07 23:47:22,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:22,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:22,231 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:22,231 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:22,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-07 23:47:22,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,243 INFO L229 MonitoredProcess]: Starting monitored process 32 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 23:47:22,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-07 23:47:22,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:22,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:22,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-07 23:47:22,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,267 INFO L229 MonitoredProcess]: Starting monitored process 33 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 23:47:22,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-07 23:47:22,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-07 23:47:22,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:22,301 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-07 23:47:22,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-07 23:47:22,305 INFO L204 LassoAnalysis]: Preferences: [2024-11-07 23:47:22,305 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-07 23:47:22,305 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-07 23:47:22,305 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-07 23:47:22,306 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-07 23:47:22,306 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,306 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-07 23:47:22,306 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-07 23:47:22,306 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration4_Loop [2024-11-07 23:47:22,306 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-07 23:47:22,306 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-07 23:47:22,307 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,310 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,317 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,322 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,325 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,374 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-07 23:47:22,374 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-07 23:47:22,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,376 INFO L229 MonitoredProcess]: Starting monitored process 34 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 23:47:22,386 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 23:47:22,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-07 23:47:22,394 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 23:47:22,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:22,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:22,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:22,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:22,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:22,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:22,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:22,401 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-07 23:47:22,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-11-07 23:47:22,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,418 INFO L229 MonitoredProcess]: Starting monitored process 35 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 23:47:22,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-07 23:47:22,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-07 23:47:22,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:22,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:22,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:22,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:22,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:22,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:22,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:22,435 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-07 23:47:22,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-07 23:47:22,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,452 INFO L229 MonitoredProcess]: Starting monitored process 36 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 23:47:22,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-07 23:47:22,454 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 23:47:22,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:22,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:22,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:22,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:22,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:22,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:22,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:22,469 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-07 23:47:22,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-11-07 23:47:22,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,485 INFO L229 MonitoredProcess]: Starting monitored process 37 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 23:47:22,488 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 23:47:22,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-07 23:47:22,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:22,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:22,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:22,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:22,502 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-07 23:47:22,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-07 23:47:22,505 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-07 23:47:22,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2024-11-07 23:47:22,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,522 INFO L229 MonitoredProcess]: Starting monitored process 38 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 23:47:22,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-07 23:47:22,525 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 23:47:22,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:22,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:22,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:22,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:22,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:22,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:22,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:22,540 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-07 23:47:22,541 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-07 23:47:22,541 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-07 23:47:22,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,543 INFO L229 MonitoredProcess]: Starting monitored process 39 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 23:47:22,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-07 23:47:22,544 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-07 23:47:22,544 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-07 23:47:22,544 INFO L474 LassoAnalysis]: Proved termination. [2024-11-07 23:47:22,544 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-07 23:47:22,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-11-07 23:47:22,555 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-07 23:47:22,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:22,576 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 23:47:22,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:22,583 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:47:22,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:22,596 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 23:47:22,597 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-07 23:47:22,597 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:22,613 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 18 transitions. Complement of second has 5 states. [2024-11-07 23:47:22,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-07 23:47:22,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:22,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2024-11-07 23:47:22,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-07 23:47:22,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:22,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-07 23:47:22,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:22,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-07 23:47:22,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:22,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 18 transitions. [2024-11-07 23:47:22,616 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-07 23:47:22,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 10 states and 14 transitions. [2024-11-07 23:47:22,617 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-07 23:47:22,617 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-11-07 23:47:22,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2024-11-07 23:47:22,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-07 23:47:22,617 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2024-11-07 23:47:22,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2024-11-07 23:47:22,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-07 23:47:22,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:22,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2024-11-07 23:47:22,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 13 transitions. [2024-11-07 23:47:22,618 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2024-11-07 23:47:22,618 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-07 23:47:22,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2024-11-07 23:47:22,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-07 23:47:22,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-07 23:47:22,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-07 23:47:22,622 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2024-11-07 23:47:22,622 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-07 23:47:22,622 INFO L745 eck$LassoCheckResult]: Stem: 330#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 331#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 332#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 333#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 334#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 326#L21 [2024-11-07 23:47:22,622 INFO L747 eck$LassoCheckResult]: Loop: 326#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 327#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 326#L21 [2024-11-07 23:47:22,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:22,623 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2024-11-07 23:47:22,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:22,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162072414] [2024-11-07 23:47:22,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:22,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:22,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:22,635 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:22,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:22,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2024-11-07 23:47:22,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:22,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504763280] [2024-11-07 23:47:22,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:22,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:22,641 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:22,648 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:22,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:22,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 3 times [2024-11-07 23:47:22,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:22,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713497598] [2024-11-07 23:47:22,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:22,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:22,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:22,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:22,698 INFO L204 LassoAnalysis]: Preferences: [2024-11-07 23:47:22,699 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-07 23:47:22,699 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-07 23:47:22,699 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-07 23:47:22,699 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-07 23:47:22,699 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,699 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-07 23:47:22,699 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-07 23:47:22,699 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration5_Loop [2024-11-07 23:47:22,699 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-07 23:47:22,699 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-07 23:47:22,700 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,705 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,707 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,710 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,713 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,716 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,717 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,767 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-07 23:47:22,767 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-07 23:47:22,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,772 INFO L229 MonitoredProcess]: Starting monitored process 40 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 23:47:22,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-07 23:47:22,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:22,775 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:22,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-07 23:47:22,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,801 INFO L229 MonitoredProcess]: Starting monitored process 41 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 23:47:22,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-07 23:47:22,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-07 23:47:22,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:22,847 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-07 23:47:22,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-07 23:47:22,851 INFO L204 LassoAnalysis]: Preferences: [2024-11-07 23:47:22,851 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-07 23:47:22,851 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-07 23:47:22,851 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-07 23:47:22,851 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-07 23:47:22,851 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,851 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-07 23:47:22,851 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-07 23:47:22,851 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration5_Loop [2024-11-07 23:47:22,851 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-07 23:47:22,851 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-07 23:47:22,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:22,928 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-07 23:47:22,928 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-07 23:47:22,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,930 INFO L229 MonitoredProcess]: Starting monitored process 42 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 23:47:22,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-07 23:47:22,931 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 23:47:22,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:22,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:22,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:22,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:22,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:22,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:22,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:22,943 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-07 23:47:22,944 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-07 23:47:22,944 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-07 23:47:22,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:22,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:22,946 INFO L229 MonitoredProcess]: Starting monitored process 43 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 23:47:22,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-07 23:47:22,948 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-07 23:47:22,948 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-07 23:47:22,948 INFO L474 LassoAnalysis]: Proved termination. [2024-11-07 23:47:22,948 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-07 23:47:22,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-07 23:47:22,962 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-07 23:47:22,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:22,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 23:47:22,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:22,992 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:47:22,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:23,007 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 23:47:23,007 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-07 23:47:23,007 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:23,021 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 5 states. [2024-11-07 23:47:23,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-07 23:47:23,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:23,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-07 23:47:23,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-07 23:47:23,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:23,022 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-07 23:47:23,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:23,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 23:47:23,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:23,053 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:47:23,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:23,068 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 23:47:23,069 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-07 23:47:23,069 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:23,086 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 5 states. [2024-11-07 23:47:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-07 23:47:23,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:23,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-07 23:47:23,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-07 23:47:23,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:23,089 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-07 23:47:23,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:23,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 23:47:23,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:23,117 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:47:23,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:23,125 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 23:47:23,126 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-07 23:47:23,126 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:23,141 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 20 transitions. Complement of second has 4 states. [2024-11-07 23:47:23,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-07 23:47:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:23,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-07 23:47:23,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-07 23:47:23,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:23,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-07 23:47:23,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:23,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-07 23:47:23,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:23,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. [2024-11-07 23:47:23,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-07 23:47:23,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 17 transitions. [2024-11-07 23:47:23,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-11-07 23:47:23,143 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2024-11-07 23:47:23,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2024-11-07 23:47:23,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-07 23:47:23,143 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-07 23:47:23,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2024-11-07 23:47:23,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2024-11-07 23:47:23,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-11-07 23:47:23,145 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-07 23:47:23,145 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-07 23:47:23,145 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-07 23:47:23,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2024-11-07 23:47:23,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-07 23:47:23,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-07 23:47:23,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-07 23:47:23,145 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2024-11-07 23:47:23,145 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-11-07 23:47:23,145 INFO L745 eck$LassoCheckResult]: Stem: 466#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 467#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 468#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 469#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 470#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 463#L21 [2024-11-07 23:47:23,145 INFO L747 eck$LassoCheckResult]: Loop: 463#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet4#1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 464#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 469#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 470#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0);havoc main_#t~nondet3#1; 463#L21 [2024-11-07 23:47:23,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:23,146 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 3 times [2024-11-07 23:47:23,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:23,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99176597] [2024-11-07 23:47:23,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:23,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:23,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:23,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:23,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:23,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 1 times [2024-11-07 23:47:23,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:23,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654520606] [2024-11-07 23:47:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:23,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:23,164 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:23,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:23,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:23,169 INFO L85 PathProgramCache]: Analyzing trace with hash 635399067, now seen corresponding path program 4 times [2024-11-07 23:47:23,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:47:23,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492410214] [2024-11-07 23:47:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:47:23,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:47:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:23,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 23:47:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 23:47:23,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 23:47:23,241 INFO L204 LassoAnalysis]: Preferences: [2024-11-07 23:47:23,241 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-07 23:47:23,241 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-07 23:47:23,241 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-07 23:47:23,241 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-07 23:47:23,241 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:23,241 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-07 23:47:23,241 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-07 23:47:23,241 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration6_Loop [2024-11-07 23:47:23,242 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-07 23:47:23,242 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-07 23:47:23,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,254 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,264 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,317 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-07 23:47:23,317 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-07 23:47:23,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:23,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:23,334 INFO L229 MonitoredProcess]: Starting monitored process 44 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 23:47:23,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-07 23:47:23,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:23,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:23,353 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:23,353 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=2} Honda state: {ULTIMATE.start_main_~x~0#1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:23,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-11-07 23:47:23,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:23,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:23,365 INFO L229 MonitoredProcess]: Starting monitored process 45 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 23:47:23,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-07 23:47:23,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:23,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:23,384 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-07 23:47:23,384 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-07 23:47:23,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-11-07 23:47:23,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:23,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:23,397 INFO L229 MonitoredProcess]: Starting monitored process 46 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 23:47:23,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-07 23:47:23,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-07 23:47:23,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:23,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-11-07 23:47:23,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:23,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:23,421 INFO L229 MonitoredProcess]: Starting monitored process 47 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 23:47:23,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-07 23:47:23,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-07 23:47:23,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-07 23:47:23,483 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-07 23:47:23,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-07 23:47:23,488 INFO L204 LassoAnalysis]: Preferences: [2024-11-07 23:47:23,488 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-07 23:47:23,488 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-07 23:47:23,488 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-07 23:47:23,488 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-07 23:47:23,488 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:23,488 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-07 23:47:23,488 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-07 23:47:23,488 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration6_Loop [2024-11-07 23:47:23,488 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-07 23:47:23,488 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-07 23:47:23,489 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,499 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-07 23:47:23,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-07 23:47:23,566 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-07 23:47:23,570 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-07 23:47:23,570 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-07 23:47:23,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:23,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:23,573 INFO L229 MonitoredProcess]: Starting monitored process 48 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 23:47:23,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-07 23:47:23,575 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 23:47:23,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:23,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:23,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:23,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:23,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:23,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:23,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:23,587 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-07 23:47:23,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-11-07 23:47:23,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:23,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:23,599 INFO L229 MonitoredProcess]: Starting monitored process 49 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 23:47:23,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-07 23:47:23,600 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-07 23:47:23,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-07 23:47:23,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-07 23:47:23,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-07 23:47:23,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-07 23:47:23,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-07 23:47:23,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-07 23:47:23,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-07 23:47:23,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-07 23:47:23,616 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-07 23:47:23,616 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-07 23:47:23,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-07 23:47:23,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:47:23,619 INFO L229 MonitoredProcess]: Starting monitored process 50 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 23:47:23,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-07 23:47:23,621 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-07 23:47:23,621 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-07 23:47:23,621 INFO L474 LassoAnalysis]: Proved termination. [2024-11-07 23:47:23,621 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-07 23:47:23,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-11-07 23:47:23,634 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-07 23:47:23,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:47:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:23,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 23:47:23,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:47:23,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 23:47:23,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:47:23,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:47:23,673 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-07 23:47:23,673 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:23,690 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 32 transitions. Complement of second has 6 states. [2024-11-07 23:47:23,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-07 23:47:23,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:47:23,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-11-07 23:47:23,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-07 23:47:23,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:23,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-07 23:47:23,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:23,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2024-11-07 23:47:23,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-07 23:47:23,692 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 32 transitions. [2024-11-07 23:47:23,693 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-07 23:47:23,693 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2024-11-07 23:47:23,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-07 23:47:23,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-07 23:47:23,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-07 23:47:23,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-07 23:47:23,693 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-07 23:47:23,693 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-07 23:47:23,693 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-07 23:47:23,693 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-07 23:47:23,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-07 23:47:23,693 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-07 23:47:23,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-07 23:47:23,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 11:47:23 BoogieIcfgContainer [2024-11-07 23:47:23,704 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-07 23:47:23,705 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:47:23,705 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:47:23,705 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:47:23,706 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:47:19" (3/4) ... [2024-11-07 23:47:23,707 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 23:47:23,708 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:47:23,711 INFO L158 Benchmark]: Toolchain (without parser) took 4705.65ms. Allocated memory is still 100.7MB. Free memory was 77.8MB in the beginning and 63.1MB in the end (delta: 14.7MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2024-11-07 23:47:23,711 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:47:23,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.12ms. Allocated memory is still 100.7MB. Free memory was 77.7MB in the beginning and 67.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:47:23,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.31ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 66.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:47:23,712 INFO L158 Benchmark]: Boogie Preprocessor took 25.95ms. Allocated memory is still 100.7MB. Free memory was 66.8MB in the beginning and 65.9MB in the end (delta: 830.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:47:23,712 INFO L158 Benchmark]: RCFGBuilder took 191.82ms. Allocated memory is still 100.7MB. Free memory was 65.9MB in the beginning and 57.9MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:47:23,712 INFO L158 Benchmark]: BuchiAutomizer took 4280.89ms. Allocated memory is still 100.7MB. Free memory was 57.7MB in the beginning and 63.9MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:47:23,712 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 100.7MB. Free memory was 63.9MB in the beginning and 63.1MB in the end (delta: 792.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:47:23,713 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.12ms. Allocated memory is still 100.7MB. Free memory was 77.7MB in the beginning and 67.9MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.31ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 66.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.95ms. Allocated memory is still 100.7MB. Free memory was 66.8MB in the beginning and 65.9MB in the end (delta: 830.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 191.82ms. Allocated memory is still 100.7MB. Free memory was 65.9MB in the beginning and 57.9MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4280.89ms. Allocated memory is still 100.7MB. Free memory was 57.7MB in the beginning and 63.9MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 100.7MB. Free memory was 63.9MB in the beginning and 63.1MB in the end (delta: 792.3kB). 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 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function d and consists of 4 locations. One deterministic module has affine ranking function d and consists of 3 locations. One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function d and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 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 [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 48 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax159 hnf100 lsp31 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 14 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s 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 23:47:23,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-11-07 23:47:23,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE