./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c00e63dc 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/Urban-WST2013-Fig2.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 9c55a9a6f50b70c8ad02d8f9cdba1133727e3a9a73c5b8d3940178ed4735e2c1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 19:00:17,440 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 19:00:17,494 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-06 19:00:17,497 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 19:00:17,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 19:00:17,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-06 19:00:17,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 19:00:17,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 19:00:17,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 19:00:17,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 19:00:17,520 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 19:00:17,520 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 19:00:17,521 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-06 19:00:17,521 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 19:00:17,521 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 19:00:17,521 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 19:00:17,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 19:00:17,522 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 19:00:17,522 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-06 19:00:17,522 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 -> 9c55a9a6f50b70c8ad02d8f9cdba1133727e3a9a73c5b8d3940178ed4735e2c1 [2025-02-06 19:00:17,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 19:00:17,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 19:00:17,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 19:00:17,743 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 19:00:17,743 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 19:00:17,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c [2025-02-06 19:00:18,917 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f313c387e/ae49a2c0c5bf426eb1caf43ca9fe9f0c/FLAGdeb3e76d8 [2025-02-06 19:00:19,178 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 19:00:19,178 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c [2025-02-06 19:00:19,201 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f313c387e/ae49a2c0c5bf426eb1caf43ca9fe9f0c/FLAGdeb3e76d8 [2025-02-06 19:00:19,216 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f313c387e/ae49a2c0c5bf426eb1caf43ca9fe9f0c [2025-02-06 19:00:19,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 19:00:19,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 19:00:19,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 19:00:19,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 19:00:19,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 19:00:19,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44244e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19, skipping insertion in model container [2025-02-06 19:00:19,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,244 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 19:00:19,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:00:19,349 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 19:00:19,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:00:19,368 INFO L204 MainTranslator]: Completed translation [2025-02-06 19:00:19,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19 WrapperNode [2025-02-06 19:00:19,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 19:00:19,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 19:00:19,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 19:00:19,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 19:00:19,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,386 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2025-02-06 19:00:19,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 19:00:19,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 19:00:19,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 19:00:19,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 19:00:19,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,394 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,398 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-06 19:00:19,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,400 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 19:00:19,403 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 19:00:19,404 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 19:00:19,404 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 19:00:19,405 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (1/1) ... [2025-02-06 19:00:19,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:19,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:19,434 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) [2025-02-06 19:00:19,447 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 [2025-02-06 19:00:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 19:00:19,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 19:00:19,508 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 19:00:19,509 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 19:00:19,555 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2025-02-06 19:00:19,555 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 19:00:19,560 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 19:00:19,560 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 19:00:19,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:00:19 BoogieIcfgContainer [2025-02-06 19:00:19,560 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 19:00:19,561 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-06 19:00:19,561 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-06 19:00:19,565 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-06 19:00:19,566 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:00:19,566 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.02 07:00:19" (1/3) ... [2025-02-06 19:00:19,566 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78bfd052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:00:19, skipping insertion in model container [2025-02-06 19:00:19,566 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:00:19,567 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:19" (2/3) ... [2025-02-06 19:00:19,567 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78bfd052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:00:19, skipping insertion in model container [2025-02-06 19:00:19,567 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:00:19,568 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:00:19" (3/3) ... [2025-02-06 19:00:19,568 INFO L363 chiAutomizerObserver]: Analyzing ICFG Urban-WST2013-Fig2.c [2025-02-06 19:00:19,605 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-06 19:00:19,605 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-06 19:00:19,605 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-06 19:00:19,605 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-06 19:00:19,606 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-06 19:00:19,606 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-06 19:00:19,606 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-06 19:00:19,606 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-06 19:00:19,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2025-02-06 19:00:19,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-06 19:00:19,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:00:19,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:00:19,622 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:00:19,622 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-06 19:00:19,622 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-06 19:00:19,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2025-02-06 19:00:19,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-06 19:00:19,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:00:19,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:00:19,624 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:00:19,624 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-06 19:00:19,629 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x1~0#1, main_~x2~0#1;havoc main_~x1~0#1;havoc main_~x2~0#1;havoc main_#t~nondet0#1;main_~x1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~x2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2025-02-06 19:00:19,629 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x1~0#1 <= 10;main_~x2~0#1 := 10;" "assume !(main_~x2~0#1 > 1);main_~x1~0#1 := 1 + main_~x1~0#1;" [2025-02-06 19:00:19,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:19,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 1 times [2025-02-06 19:00:19,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:19,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228588224] [2025-02-06 19:00:19,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:19,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:19,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:19,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:19,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:19,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:19,690 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:19,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:19,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:19,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:19,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:19,704 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:19,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:19,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1119, now seen corresponding path program 1 times [2025-02-06 19:00:19,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:19,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133207104] [2025-02-06 19:00:19,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:19,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:19,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:19,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:19,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:19,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:19,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:00:19,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:00:19,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133207104] [2025-02-06 19:00:19,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133207104] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:00:19,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:00:19,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 19:00:19,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120536290] [2025-02-06 19:00:19,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:00:19,768 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-06 19:00:19,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:00:19,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 19:00:19,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 19:00:19,787 INFO L87 Difference]: Start difference. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2025-02-06 19:00:19,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:00:19,801 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2025-02-06 19:00:19,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2025-02-06 19:00:19,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-06 19:00:19,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 5 states and 6 transitions. [2025-02-06 19:00:19,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2025-02-06 19:00:19,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2025-02-06 19:00:19,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2025-02-06 19:00:19,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:00:19,808 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2025-02-06 19:00:19,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2025-02-06 19:00:19,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2025-02-06 19:00:19,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 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) [2025-02-06 19:00:19,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2025-02-06 19:00:19,824 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2025-02-06 19:00:19,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 19:00:19,826 INFO L432 stractBuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2025-02-06 19:00:19,827 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-06 19:00:19,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2025-02-06 19:00:19,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-06 19:00:19,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:00:19,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:00:19,827 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:00:19,827 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:00:19,827 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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_~x1~0#1, main_~x2~0#1;havoc main_~x1~0#1;havoc main_~x2~0#1;havoc main_#t~nondet0#1;main_~x1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~x2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2025-02-06 19:00:19,827 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x1~0#1 <= 10;main_~x2~0#1 := 10;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume !(main_~x2~0#1 > 1);main_~x1~0#1 := 1 + main_~x1~0#1;" [2025-02-06 19:00:19,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:19,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 2 times [2025-02-06 19:00:19,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:19,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116665047] [2025-02-06 19:00:19,828 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 19:00:19,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:19,836 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:19,836 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:19,836 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 19:00:19,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:19,836 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:19,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:19,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:19,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:19,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:19,838 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:19,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:19,838 INFO L85 PathProgramCache]: Analyzing trace with hash 34723, now seen corresponding path program 1 times [2025-02-06 19:00:19,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:19,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472219181] [2025-02-06 19:00:19,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:19,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:19,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:19,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:19,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:19,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:19,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:00:19,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:00:19,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472219181] [2025-02-06 19:00:19,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472219181] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 19:00:19,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582723427] [2025-02-06 19:00:19,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:19,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 19:00:19,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:19,890 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 19:00:19,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 19:00:19,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:19,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:19,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:19,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:19,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 19:00:19,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:19,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:00:19,958 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 19:00:19,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:00:19,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582723427] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 19:00:19,976 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 19:00:19,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2025-02-06 19:00:19,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343631741] [2025-02-06 19:00:19,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 19:00:19,977 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-06 19:00:19,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:00:19,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 19:00:19,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 19:00:19,978 INFO L87 Difference]: Start difference. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2025-02-06 19:00:19,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:00:19,993 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2025-02-06 19:00:19,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2025-02-06 19:00:19,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-02-06 19:00:19,993 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 9 transitions. [2025-02-06 19:00:19,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2025-02-06 19:00:19,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2025-02-06 19:00:19,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2025-02-06 19:00:19,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:00:19,994 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2025-02-06 19:00:19,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2025-02-06 19:00:19,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2025-02-06 19:00:19,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 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) [2025-02-06 19:00:19,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2025-02-06 19:00:19,996 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2025-02-06 19:00:19,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 19:00:19,997 INFO L432 stractBuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2025-02-06 19:00:19,997 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-06 19:00:19,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2025-02-06 19:00:19,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2025-02-06 19:00:19,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:00:19,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:00:19,998 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:00:19,998 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 1, 1] [2025-02-06 19:00:19,999 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x1~0#1, main_~x2~0#1;havoc main_~x1~0#1;havoc main_~x2~0#1;havoc main_#t~nondet0#1;main_~x1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~x2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2025-02-06 19:00:19,999 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x1~0#1 <= 10;main_~x2~0#1 := 10;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume !(main_~x2~0#1 > 1);main_~x1~0#1 := 1 + main_~x1~0#1;" [2025-02-06 19:00:19,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:19,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 3 times [2025-02-06 19:00:19,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:19,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130334515] [2025-02-06 19:00:19,999 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 19:00:19,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:20,002 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:20,003 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:20,003 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 19:00:20,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:20,003 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:20,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:20,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:20,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:20,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:20,005 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:20,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:20,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1034466655, now seen corresponding path program 2 times [2025-02-06 19:00:20,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:20,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373772716] [2025-02-06 19:00:20,005 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 19:00:20,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:20,009 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 6 statements into 2 equivalence classes. [2025-02-06 19:00:20,015 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:00:20,015 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 19:00:20,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:00:20,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:00:20,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373772716] [2025-02-06 19:00:20,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373772716] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 19:00:20,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959983387] [2025-02-06 19:00:20,070 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 19:00:20,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 19:00:20,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:20,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 19:00:20,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 19:00:20,094 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 6 statements into 2 equivalence classes. [2025-02-06 19:00:20,097 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:00:20,098 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 19:00:20,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:20,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 19:00:20,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:20,113 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:00:20,113 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 19:00:20,168 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:00:20,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959983387] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 19:00:20,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 19:00:20,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-02-06 19:00:20,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756475077] [2025-02-06 19:00:20,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 19:00:20,169 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-06 19:00:20,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:00:20,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 19:00:20,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-02-06 19:00:20,169 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2025-02-06 19:00:20,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:00:20,184 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2025-02-06 19:00:20,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2025-02-06 19:00:20,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2025-02-06 19:00:20,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 14 transitions. [2025-02-06 19:00:20,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2025-02-06 19:00:20,185 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2025-02-06 19:00:20,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2025-02-06 19:00:20,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:00:20,185 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-02-06 19:00:20,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2025-02-06 19:00:20,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-02-06 19:00:20,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 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) [2025-02-06 19:00:20,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-02-06 19:00:20,186 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-02-06 19:00:20,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 19:00:20,191 INFO L432 stractBuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-02-06 19:00:20,192 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-06 19:00:20,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2025-02-06 19:00:20,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2025-02-06 19:00:20,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:00:20,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:00:20,192 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:00:20,192 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [9, 1, 1] [2025-02-06 19:00:20,192 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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_~x1~0#1, main_~x2~0#1;havoc main_~x1~0#1;havoc main_~x2~0#1;havoc main_#t~nondet0#1;main_~x1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~x2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2025-02-06 19:00:20,193 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x1~0#1 <= 10;main_~x2~0#1 := 10;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume !(main_~x2~0#1 > 1);main_~x1~0#1 := 1 + main_~x1~0#1;" [2025-02-06 19:00:20,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:20,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 4 times [2025-02-06 19:00:20,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:20,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197691625] [2025-02-06 19:00:20,193 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 19:00:20,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:20,201 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 2 statements into 2 equivalence classes. [2025-02-06 19:00:20,201 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:20,201 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 19:00:20,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:20,201 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:20,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:20,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:20,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:20,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:20,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:20,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:20,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1936988765, now seen corresponding path program 3 times [2025-02-06 19:00:20,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:20,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807044453] [2025-02-06 19:00:20,204 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 19:00:20,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:20,207 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 11 statements into 6 equivalence classes. [2025-02-06 19:00:20,212 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 19:00:20,213 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-06 19:00:20,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:20,213 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:20,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 19:00:20,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 19:00:20,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:20,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:20,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:20,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:20,221 INFO L85 PathProgramCache]: Analyzing trace with hash 444012452, now seen corresponding path program 1 times [2025-02-06 19:00:20,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:20,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476369319] [2025-02-06 19:00:20,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:20,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:20,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 19:00:20,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 19:00:20,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:20,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:20,231 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:20,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 19:00:20,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 19:00:20,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:20,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:20,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:20,336 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:00:20,337 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:00:20,337 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:00:20,337 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:00:20,337 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:00:20,337 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:20,338 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:00:20,338 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:00:20,338 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig2.c_Iteration4_Loop [2025-02-06 19:00:20,338 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:00:20,338 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:00:20,349 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:20,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:20,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:20,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:20,418 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:00:20,418 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:00:20,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:20,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:20,447 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) [2025-02-06 19:00:20,451 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 [2025-02-06 19:00:20,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:20,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:20,472 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:00:20,472 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-06 19:00:20,478 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 [2025-02-06 19:00:20,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:20,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:20,481 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) [2025-02-06 19:00:20,482 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 [2025-02-06 19:00:20,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:20,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:20,504 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:00:20,504 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-06 19:00:20,517 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 [2025-02-06 19:00:20,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:20,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:20,519 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) [2025-02-06 19:00:20,519 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 [2025-02-06 19:00:20,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:20,522 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:20,533 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:00:20,533 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x2~0#1=0} Honda state: {ULTIMATE.start_main_~x2~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-06 19:00:20,538 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 [2025-02-06 19:00:20,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:20,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:20,541 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) [2025-02-06 19:00:20,542 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 [2025-02-06 19:00:20,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:20,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:20,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:20,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:20,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:20,573 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) [2025-02-06 19:00:20,574 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 [2025-02-06 19:00:20,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:00:20,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:20,598 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:00:20,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-06 19:00:20,602 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:00:20,603 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:00:20,603 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:00:20,603 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:00:20,603 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:00:20,603 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:20,603 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:00:20,603 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:00:20,603 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig2.c_Iteration4_Loop [2025-02-06 19:00:20,603 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:00:20,603 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:00:20,604 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:20,607 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:20,609 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:20,611 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:20,648 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:00:20,651 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:00:20,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:20,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:20,656 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) [2025-02-06 19:00:20,657 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 [2025-02-06 19:00:20,662 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 [2025-02-06 19:00:20,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:20,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:20,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:20,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:20,696 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-06 19:00:20,696 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-06 19:00:20,707 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:00:20,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:20,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:20,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:20,727 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) [2025-02-06 19:00:20,728 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 [2025-02-06 19:00:20,729 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 [2025-02-06 19:00:20,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:20,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:00:20,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:20,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:20,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:20,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:00:20,741 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:00:20,749 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:00:20,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-06 19:00:20,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:20,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:20,762 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) [2025-02-06 19:00:20,765 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 [2025-02-06 19:00:20,765 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 [2025-02-06 19:00:20,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:20,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:20,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:20,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:20,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-06 19:00:20,791 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-06 19:00:20,801 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:00:20,811 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 [2025-02-06 19:00:20,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:20,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:20,818 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) [2025-02-06 19:00:20,819 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 [2025-02-06 19:00:20,822 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 [2025-02-06 19:00:20,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:20,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:00:20,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:20,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:20,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:20,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:00:20,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:00:20,853 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:00:20,855 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:00:20,857 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-06 19:00:20,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:20,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:20,863 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) [2025-02-06 19:00:20,864 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 [2025-02-06 19:00:20,869 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:00:20,870 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:00:20,870 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:00:20,870 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x1~0#1) = -2*ULTIMATE.start_main_~x1~0#1 + 21 Supporting invariants [] [2025-02-06 19:00:20,884 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 [2025-02-06 19:00:20,886 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:00:20,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:20,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:20,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:20,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:20,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:20,913 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:00:20,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:20,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 19:00:20,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 19:00:20,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:20,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:20,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:00:20,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-02-06 19:00:20,990 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 [2025-02-06 19:00:20,993 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 14 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-02-06 19:00:21,019 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 14 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 24 states and 27 transitions. Complement of second has 4 states. [2025-02-06 19:00:21,020 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 [2025-02-06 19:00:21,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-02-06 19:00:21,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2025-02-06 19:00:21,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 11 letters. [2025-02-06 19:00:21,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:21,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 13 letters. Loop has 11 letters. [2025-02-06 19:00:21,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:21,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 22 letters. [2025-02-06 19:00:21,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:21,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 27 transitions. [2025-02-06 19:00:21,025 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-06 19:00:21,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 27 transitions. [2025-02-06 19:00:21,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2025-02-06 19:00:21,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2025-02-06 19:00:21,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 27 transitions. [2025-02-06 19:00:21,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:00:21,025 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 27 transitions. [2025-02-06 19:00:21,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 27 transitions. [2025-02-06 19:00:21,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 15. [2025-02-06 19:00:21,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 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) [2025-02-06 19:00:21,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2025-02-06 19:00:21,026 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2025-02-06 19:00:21,026 INFO L432 stractBuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2025-02-06 19:00:21,026 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-06 19:00:21,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2025-02-06 19:00:21,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-06 19:00:21,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:00:21,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:00:21,027 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-06 19:00:21,027 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-06 19:00:21,027 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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_~x1~0#1, main_~x2~0#1;havoc main_~x1~0#1;havoc main_~x2~0#1;havoc main_#t~nondet0#1;main_~x1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~x2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x1~0#1 <= 10;main_~x2~0#1 := 10;" [2025-02-06 19:00:21,027 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" [2025-02-06 19:00:21,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:21,027 INFO L85 PathProgramCache]: Analyzing trace with hash 36709, now seen corresponding path program 1 times [2025-02-06 19:00:21,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:21,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403908301] [2025-02-06 19:00:21,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:21,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:21,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:21,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:21,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:21,030 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:21,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:21,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:21,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:21,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:21,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:21,032 INFO L85 PathProgramCache]: Analyzing trace with hash 35, now seen corresponding path program 1 times [2025-02-06 19:00:21,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:21,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552352769] [2025-02-06 19:00:21,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:21,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:21,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:00:21,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:00:21,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:21,034 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:21,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:00:21,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:00:21,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:21,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:21,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:21,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1137983, now seen corresponding path program 1 times [2025-02-06 19:00:21,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:21,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519507537] [2025-02-06 19:00:21,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:21,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:21,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 19:00:21,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 19:00:21,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:21,038 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:21,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 19:00:21,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 19:00:21,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:21,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:21,056 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:00:21,056 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:00:21,056 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:00:21,056 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:00:21,056 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:00:21,056 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,056 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:00:21,056 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:00:21,056 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig2.c_Iteration5_Loop [2025-02-06 19:00:21,056 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:00:21,056 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:00:21,056 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:21,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:21,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:21,089 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:00:21,089 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:00:21,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,092 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) [2025-02-06 19:00:21,096 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 [2025-02-06 19:00:21,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:21,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:21,116 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:00:21,116 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: [] [2025-02-06 19:00:21,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:21,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,126 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) [2025-02-06 19:00:21,130 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 [2025-02-06 19:00:21,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:21,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:21,149 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:00:21,149 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: [] [2025-02-06 19:00:21,154 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 [2025-02-06 19:00:21,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,159 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) [2025-02-06 19:00:21,159 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 [2025-02-06 19:00:21,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:21,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:21,176 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 [2025-02-06 19:00:21,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,179 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) [2025-02-06 19:00:21,179 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 [2025-02-06 19:00:21,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:00:21,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:21,205 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:00:21,209 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 [2025-02-06 19:00:21,210 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:00:21,210 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:00:21,210 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:00:21,210 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:00:21,210 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:00:21,210 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,210 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:00:21,210 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:00:21,210 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig2.c_Iteration5_Loop [2025-02-06 19:00:21,210 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:00:21,210 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:00:21,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:21,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:21,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:21,244 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:00:21,244 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:00:21,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,249 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) [2025-02-06 19:00:21,250 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 [2025-02-06 19:00:21,251 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 [2025-02-06 19:00:21,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:21,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:21,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:21,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:21,265 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-06 19:00:21,265 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-06 19:00:21,270 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:00:21,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:21,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,285 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) [2025-02-06 19:00:21,285 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 [2025-02-06 19:00:21,287 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 [2025-02-06 19:00:21,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:21,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:21,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:21,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:21,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-06 19:00:21,299 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-06 19:00:21,304 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:00:21,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:21,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,312 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) [2025-02-06 19:00:21,314 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 [2025-02-06 19:00:21,315 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 [2025-02-06 19:00:21,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:21,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:00:21,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:21,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:21,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:21,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:00:21,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:00:21,331 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:00:21,334 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:00:21,334 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-06 19:00:21,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,336 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) [2025-02-06 19:00:21,338 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 [2025-02-06 19:00:21,339 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:00:21,339 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:00:21,339 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:00:21,339 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x2~0#1) = 1*ULTIMATE.start_main_~x2~0#1 Supporting invariants [] [2025-02-06 19:00:21,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:21,345 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:00:21,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:21,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:21,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:21,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:21,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:00:21,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:21,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:00:21,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:00:21,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:21,363 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:00:21,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:00:21,364 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-06 19:00:21,364 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2025-02-06 19:00:21,369 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 27 states and 31 transitions. Complement of second has 3 states. [2025-02-06 19:00:21,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-02-06 19:00:21,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2025-02-06 19:00:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2025-02-06 19:00:21,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2025-02-06 19:00:21,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:21,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 4 letters. Loop has 1 letters. [2025-02-06 19:00:21,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:21,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-06 19:00:21,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:21,370 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions. [2025-02-06 19:00:21,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-06 19:00:21,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 28 transitions. [2025-02-06 19:00:21,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-02-06 19:00:21,371 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2025-02-06 19:00:21,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2025-02-06 19:00:21,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:00:21,371 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 28 transitions. [2025-02-06 19:00:21,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2025-02-06 19:00:21,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 15. [2025-02-06 19:00:21,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 14 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) [2025-02-06 19:00:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2025-02-06 19:00:21,372 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2025-02-06 19:00:21,372 INFO L432 stractBuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2025-02-06 19:00:21,372 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-06 19:00:21,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2025-02-06 19:00:21,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-06 19:00:21,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:00:21,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:00:21,372 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 2, 1, 1, 1] [2025-02-06 19:00:21,372 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-06 19:00:21,372 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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_~x1~0#1, main_~x2~0#1;havoc main_~x1~0#1;havoc main_~x2~0#1;havoc main_#t~nondet0#1;main_~x1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~x2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x1~0#1 <= 10;main_~x2~0#1 := 10;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" "assume !(main_~x2~0#1 > 1);main_~x1~0#1 := 1 + main_~x1~0#1;" "assume main_~x1~0#1 <= 10;main_~x2~0#1 := 10;" [2025-02-06 19:00:21,372 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x2~0#1 > 1;main_~x2~0#1 := main_~x2~0#1 - 1;" [2025-02-06 19:00:21,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:21,373 INFO L85 PathProgramCache]: Analyzing trace with hash 879484129, now seen corresponding path program 2 times [2025-02-06 19:00:21,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:21,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053845998] [2025-02-06 19:00:21,373 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 19:00:21,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:21,375 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 2 equivalence classes. [2025-02-06 19:00:21,379 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 19:00:21,379 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 19:00:21,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:21,380 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:21,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 19:00:21,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 19:00:21,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:21,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:21,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:21,386 INFO L85 PathProgramCache]: Analyzing trace with hash 35, now seen corresponding path program 2 times [2025-02-06 19:00:21,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:21,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7788424] [2025-02-06 19:00:21,386 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 19:00:21,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:21,387 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:00:21,388 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:00:21,388 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 19:00:21,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:21,388 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:21,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:00:21,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:00:21,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:21,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:21,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:21,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1494204227, now seen corresponding path program 3 times [2025-02-06 19:00:21,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:21,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314521146] [2025-02-06 19:00:21,389 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 19:00:21,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:21,392 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 15 statements into 7 equivalence classes. [2025-02-06 19:00:21,396 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 19:00:21,396 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-02-06 19:00:21,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:21,396 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:21,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 19:00:21,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 19:00:21,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:21,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:21,411 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:00:21,411 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:00:21,411 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:00:21,411 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:00:21,411 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:00:21,411 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,411 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:00:21,411 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:00:21,411 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig2.c_Iteration6_Loop [2025-02-06 19:00:21,411 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:00:21,411 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:00:21,412 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:21,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:21,418 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:21,441 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:00:21,441 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:00:21,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,444 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) [2025-02-06 19:00:21,445 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 [2025-02-06 19:00:21,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:21,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:21,463 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:00:21,463 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: [] [2025-02-06 19:00:21,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:21,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,472 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) [2025-02-06 19:00:21,472 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 [2025-02-06 19:00:21,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:21,474 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:21,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:21,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,493 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) [2025-02-06 19:00:21,497 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 [2025-02-06 19:00:21,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:00:21,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:21,520 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:00:21,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:21,524 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:00:21,524 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:00:21,524 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:00:21,524 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:00:21,524 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:00:21,524 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,524 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:00:21,524 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:00:21,524 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig2.c_Iteration6_Loop [2025-02-06 19:00:21,524 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:00:21,524 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:00:21,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:21,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:21,532 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:21,554 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:00:21,554 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:00:21,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,556 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) [2025-02-06 19:00:21,557 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 [2025-02-06 19:00:21,558 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 [2025-02-06 19:00:21,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:21,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:21,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:21,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:21,569 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-06 19:00:21,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-06 19:00:21,572 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:00:21,578 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 [2025-02-06 19:00:21,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,580 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) [2025-02-06 19:00:21,582 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 [2025-02-06 19:00:21,583 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 [2025-02-06 19:00:21,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:21,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:00:21,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:21,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:21,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:21,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:00:21,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:00:21,597 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:00:21,600 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:00:21,600 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-06 19:00:21,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:21,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:21,603 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) [2025-02-06 19:00:21,604 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 [2025-02-06 19:00:21,608 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:00:21,608 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:00:21,608 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:00:21,608 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x2~0#1) = 1*ULTIMATE.start_main_~x2~0#1 Supporting invariants [] [2025-02-06 19:00:21,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-02-06 19:00:21,617 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:00:21,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:21,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 19:00:21,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 19:00:21,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:21,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:00:21,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:21,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:00:21,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:00:21,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:21,716 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:00:21,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:21,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:00:21,718 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-06 19:00:21,718 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2025-02-06 19:00:21,724 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 25 states and 28 transitions. Complement of second has 3 states. [2025-02-06 19:00:21,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-02-06 19:00:21,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2025-02-06 19:00:21,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2025-02-06 19:00:21,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 14 letters. Loop has 1 letters. [2025-02-06 19:00:21,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:21,725 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-02-06 19:00:21,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:21,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 19:00:21,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 19:00:21,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:21,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:00:21,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:21,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:00:21,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:00:21,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:21,757 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:00:21,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:00:21,758 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-06 19:00:21,758 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2025-02-06 19:00:21,762 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 25 states and 28 transitions. Complement of second has 3 states. [2025-02-06 19:00:21,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-02-06 19:00:21,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2025-02-06 19:00:21,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2025-02-06 19:00:21,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 14 letters. Loop has 1 letters. [2025-02-06 19:00:21,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:21,763 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-02-06 19:00:21,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:21,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 19:00:21,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 19:00:21,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:21,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:00:21,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:21,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:21,817 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 [2025-02-06 19:00:21,822 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 [2025-02-06 19:00:21,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-06 19:00:21,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-06 19:00:21,829 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:21,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:21,829 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:00:21,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:21,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:00:21,830 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 1 loop predicates [2025-02-06 19:00:21,830 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2025-02-06 19:00:21,836 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 18 transitions. Complement of second has 2 states. [2025-02-06 19:00:21,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2025-02-06 19:00:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2025-02-06 19:00:21,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 7 transitions. [2025-02-06 19:00:21,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 14 letters. Loop has 1 letters. [2025-02-06 19:00:21,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:21,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 15 letters. Loop has 1 letters. [2025-02-06 19:00:21,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:21,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 7 transitions. Stem has 14 letters. Loop has 2 letters. [2025-02-06 19:00:21,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:21,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 18 transitions. [2025-02-06 19:00:21,838 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-06 19:00:21,838 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2025-02-06 19:00:21,838 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-06 19:00:21,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-06 19:00:21,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-06 19:00:21,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:00:21,838 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:00:21,838 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:00:21,838 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 19:00:21,839 INFO L338 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-02-06 19:00:21,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-06 19:00:21,839 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-06 19:00:21,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-06 19:00:21,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.02 07:00:21 BoogieIcfgContainer [2025-02-06 19:00:21,847 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-06 19:00:21,848 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 19:00:21,848 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 19:00:21,848 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 19:00:21,848 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:00:19" (3/4) ... [2025-02-06 19:00:21,850 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 19:00:21,850 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 19:00:21,851 INFO L158 Benchmark]: Toolchain (without parser) took 2627.96ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 107.7MB in the end (delta: 6.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2025-02-06 19:00:21,851 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 201.3MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:00:21,851 INFO L158 Benchmark]: CACSL2BoogieTranslator took 141.60ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 103.6MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:00:21,851 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.39ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 102.7MB in the end (delta: 904.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:00:21,852 INFO L158 Benchmark]: Boogie Preprocessor took 14.42ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 102.2MB in the end (delta: 474.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:00:21,852 INFO L158 Benchmark]: IcfgBuilder took 157.67ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 92.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:00:21,853 INFO L158 Benchmark]: BuchiAutomizer took 2286.53ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 107.7MB in the end (delta: -14.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:00:21,853 INFO L158 Benchmark]: Witness Printer took 2.50ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 107.7MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:00:21,853 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 201.3MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 141.60ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 103.6MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.39ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 102.7MB in the end (delta: 904.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.42ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 102.2MB in the end (delta: 474.0kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 157.67ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 92.8MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2286.53ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 107.7MB in the end (delta: -14.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.50ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 107.7MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long) -2 * x1) + 21) and consists of 3 locations. One deterministic module has affine ranking function x2 and consists of 2 locations. One nondeterministic module has affine ranking function x2 and consists of 2 locations. 3 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 7 iterations. TraceHistogramMax:9. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 45/45 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 32 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-06 19:00:21,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 19:00:22,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:22,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE