./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/Ex07.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-restricted-15/Ex07.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 e1ac7230c5e382093d26c98e7b6016147f69412c389a30284fe416f8f9568f8d --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 19:00:50,655 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 19:00:50,730 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-06 19:00:50,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 19:00:50,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 19:00:50,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-06 19:00:50,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 19:00:50,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 19:00:50,758 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 19:00:50,758 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 19:00:50,759 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 19:00:50,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 19:00:50,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 19:00:50,759 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 19:00:50,759 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-06 19:00:50,759 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-06 19:00:50,760 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-06 19:00:50,760 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-06 19:00:50,760 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-06 19:00:50,760 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-06 19:00:50,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 19:00:50,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-06 19:00:50,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 19:00:50,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 19:00:50,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-06 19:00:50,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-06 19:00:50,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-06 19:00:50,761 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 19:00:50,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 19:00:50,761 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-06 19:00:50,761 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 19:00:50,761 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 19:00:50,761 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 19:00:50,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 19:00:50,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 19:00:50,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 19:00:50,762 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-06 19:00:50,762 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 -> e1ac7230c5e382093d26c98e7b6016147f69412c389a30284fe416f8f9568f8d [2025-02-06 19:00:51,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 19:00:51,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 19:00:51,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 19:00:51,055 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 19:00:51,055 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 19:00:51,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Ex07.c [2025-02-06 19:00:52,423 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/29b7f1591/ab2e3c12d82f4edaa4f985778531f687/FLAG128336262 [2025-02-06 19:00:52,667 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 19:00:52,673 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex07.c [2025-02-06 19:00:52,685 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/29b7f1591/ab2e3c12d82f4edaa4f985778531f687/FLAG128336262 [2025-02-06 19:00:52,744 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/29b7f1591/ab2e3c12d82f4edaa4f985778531f687 [2025-02-06 19:00:52,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 19:00:52,753 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 19:00:52,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 19:00:52,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 19:00:52,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 19:00:52,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6616ee50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52, skipping insertion in model container [2025-02-06 19:00:52,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 19:00:52,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:00:52,899 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 19:00:52,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:00:52,920 INFO L204 MainTranslator]: Completed translation [2025-02-06 19:00:52,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52 WrapperNode [2025-02-06 19:00:52,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 19:00:52,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 19:00:52,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 19:00:52,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 19:00:52,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,932 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,943 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2025-02-06 19:00:52,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 19:00:52,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 19:00:52,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 19:00:52,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 19:00:52,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,950 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,953 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-06 19:00:52,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,954 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 19:00:52,957 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 19:00:52,957 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 19:00:52,957 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 19:00:52,958 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (1/1) ... [2025-02-06 19:00:52,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:52,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:52,990 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 19:00:52,998 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 19:00:53,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 19:00:53,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 19:00:53,071 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 19:00:53,073 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 19:00:53,132 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2025-02-06 19:00:53,133 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 19:00:53,140 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 19:00:53,141 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 19:00:53,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:00:53 BoogieIcfgContainer [2025-02-06 19:00:53,141 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 19:00:53,142 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-06 19:00:53,142 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-06 19:00:53,147 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-06 19:00:53,148 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:00:53,148 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.02 07:00:52" (1/3) ... [2025-02-06 19:00:53,149 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c538e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:00:53, skipping insertion in model container [2025-02-06 19:00:53,150 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:00:53,150 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:00:52" (2/3) ... [2025-02-06 19:00:53,151 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c538e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:00:53, skipping insertion in model container [2025-02-06 19:00:53,151 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:00:53,151 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:00:53" (3/3) ... [2025-02-06 19:00:53,154 INFO L363 chiAutomizerObserver]: Analyzing ICFG Ex07.c [2025-02-06 19:00:53,205 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-06 19:00:53,205 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-06 19:00:53,205 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-06 19:00:53,205 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-06 19:00:53,206 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-06 19:00:53,206 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-06 19:00:53,206 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-06 19:00:53,206 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-06 19:00:53,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:00:53,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-06 19:00:53,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:00:53,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:00:53,229 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:00:53,229 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:00:53,230 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-06 19:00:53,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:00:53,232 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-06 19:00:53,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:00:53,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:00:53,232 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:00:53,232 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:00:53,239 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2025-02-06 19:00:53,240 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume main_~i~0#1 > 0;main_~i~0#1 := main_~i~0#1 - 1;" "assume main_~i~0#1 < 0;main_~i~0#1 := 1 + main_~i~0#1;" [2025-02-06 19:00:53,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:53,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1248, now seen corresponding path program 1 times [2025-02-06 19:00:53,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:53,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523498225] [2025-02-06 19:00:53,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:53,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:53,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:53,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:53,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:53,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:53,319 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:53,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:53,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:53,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:53,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:53,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:53,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:53,337 INFO L85 PathProgramCache]: Analyzing trace with hash 36676, now seen corresponding path program 1 times [2025-02-06 19:00:53,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:53,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42385632] [2025-02-06 19:00:53,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:53,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:53,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:53,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:53,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:53,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:53,420 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 19:00:53,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:00:53,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42385632] [2025-02-06 19:00:53,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42385632] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:00:53,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:00:53,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 19:00:53,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233592397] [2025-02-06 19:00:53,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:00:53,429 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-06 19:00:53,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:00:53,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 19:00:53,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 19:00:53,458 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 19:00:53,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:00:53,485 INFO L93 Difference]: Finished difference Result 8 states and 11 transitions. [2025-02-06 19:00:53,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. [2025-02-06 19:00:53,487 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2025-02-06 19:00:53,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 11 transitions. [2025-02-06 19:00:53,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2025-02-06 19:00:53,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2025-02-06 19:00:53,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2025-02-06 19:00:53,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:00:53,496 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-02-06 19:00:53,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2025-02-06 19:00:53,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2025-02-06 19:00:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:00:53,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2025-02-06 19:00:53,516 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-02-06 19:00:53,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 19:00:53,520 INFO L432 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-02-06 19:00:53,521 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-06 19:00:53,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2025-02-06 19:00:53,521 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2025-02-06 19:00:53,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:00:53,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:00:53,521 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-06 19:00:53,522 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:00:53,522 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_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2025-02-06 19:00:53,522 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume !(main_~i~0#1 > 0);" "assume main_~i~0#1 < 0;main_~i~0#1 := 1 + main_~i~0#1;" [2025-02-06 19:00:53,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:53,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1248, now seen corresponding path program 2 times [2025-02-06 19:00:53,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:53,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342570375] [2025-02-06 19:00:53,523 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 19:00:53,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:53,527 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:53,527 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:53,528 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 19:00:53,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:53,528 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:53,530 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:53,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:53,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:53,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:53,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:53,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:53,535 INFO L85 PathProgramCache]: Analyzing trace with hash 36707, now seen corresponding path program 1 times [2025-02-06 19:00:53,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:53,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979465552] [2025-02-06 19:00:53,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:53,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:53,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:53,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:53,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:53,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:53,545 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:53,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:53,548 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:53,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:53,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:53,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:53,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:53,551 INFO L85 PathProgramCache]: Analyzing trace with hash 37186084, now seen corresponding path program 1 times [2025-02-06 19:00:53,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:53,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062723429] [2025-02-06 19:00:53,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:53,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:53,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 19:00:53,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 19:00:53,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:53,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:53,557 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:53,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 19:00:53,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 19:00:53,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:53,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:53,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:53,603 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:00:53,604 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:00:53,604 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:00:53,604 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:00:53,604 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:00:53,604 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:53,604 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:00:53,604 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:00:53,604 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex07.c_Iteration2_Loop [2025-02-06 19:00:53,604 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:00:53,604 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:00:53,615 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:53,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:53,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:53,687 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:00:53,687 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:00:53,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:53,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:53,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:00:53,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-06 19:00:53,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:53,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:53,715 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:00:53,715 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 19:00:53,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-06 19:00:53,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:53,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:53,724 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:00:53,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-06 19:00:53,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:53,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:53,744 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:00:53,744 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 19:00:53,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-06 19:00:53,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:53,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:53,751 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 19:00:53,752 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 19:00:53,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:53,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:53,773 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 19:00:53,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:53,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:53,776 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 19:00:53,778 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 19:00:53,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:00:53,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:53,808 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:00:53,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:53,814 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:00:53,814 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:00:53,814 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:00:53,814 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:00:53,814 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:00:53,814 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:53,814 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:00:53,814 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:00:53,814 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex07.c_Iteration2_Loop [2025-02-06 19:00:53,814 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:00:53,814 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:00:53,817 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:53,821 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:53,825 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:53,875 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:00:53,878 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:00:53,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:53,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:53,882 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 19:00:53,884 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 19:00:53,885 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 19:00:53,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:53,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:53,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:53,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:53,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-06 19:00:53,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-06 19:00:53,919 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:00:53,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:53,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:53,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:53,928 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 19:00:53,929 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 19:00:53,930 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 19:00:53,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:53,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:53,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:53,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:53,944 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-06 19:00:53,944 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-06 19:00:53,949 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:00:53,956 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 19:00:53,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:53,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:53,959 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 19:00:53,961 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 19:00:53,962 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 19:00:53,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:53,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:00:53,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:53,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:53,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:53,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:00:53,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:00:53,979 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:00:53,983 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:00:53,985 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-06 19:00:53,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:53,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:53,990 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 19:00:53,991 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 19:00:53,992 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:00:53,992 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:00:53,992 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:00:53,992 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2025-02-06 19:00:54,000 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 19:00:54,003 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:00:54,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:54,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 19:00:54,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 19:00:54,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:54,032 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:00:54,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:54,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:54,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:54,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:54,042 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:00:54,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:54,049 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 19:00:54,051 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 19:00:54,052 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 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 19:00:54,081 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 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 17 states and 23 transitions. Complement of second has 5 states. [2025-02-06 19:00:54,082 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 19:00:54,083 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 19:00:54,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2025-02-06 19:00:54,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-06 19:00:54,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:54,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-06 19:00:54,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:54,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-06 19:00:54,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:54,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2025-02-06 19:00:54,097 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2025-02-06 19:00:54,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 19 transitions. [2025-02-06 19:00:54,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2025-02-06 19:00:54,098 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2025-02-06 19:00:54,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2025-02-06 19:00:54,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:00:54,099 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2025-02-06 19:00:54,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2025-02-06 19:00:54,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 9. [2025-02-06 19:00:54,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 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 19:00:54,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2025-02-06 19:00:54,102 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2025-02-06 19:00:54,102 INFO L432 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2025-02-06 19:00:54,102 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-06 19:00:54,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2025-02-06 19:00:54,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-06 19:00:54,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:00:54,103 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:00:54,103 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-06 19:00:54,103 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:00:54,103 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_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume true;" [2025-02-06 19:00:54,103 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 > 0;main_~i~0#1 := main_~i~0#1 - 1;" "assume !(main_~i~0#1 < 0);" "assume true;" [2025-02-06 19:00:54,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:54,104 INFO L85 PathProgramCache]: Analyzing trace with hash 38695, now seen corresponding path program 1 times [2025-02-06 19:00:54,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:54,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179689142] [2025-02-06 19:00:54,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:54,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:54,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:54,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:54,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,110 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:54,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:54,115 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:54,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,116 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:54,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:54,116 INFO L85 PathProgramCache]: Analyzing trace with hash 34727, now seen corresponding path program 1 times [2025-02-06 19:00:54,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:54,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463262107] [2025-02-06 19:00:54,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:54,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:54,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:54,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:54,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,123 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:54,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:54,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:54,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:54,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:54,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1152767681, now seen corresponding path program 1 times [2025-02-06 19:00:54,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:54,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533754596] [2025-02-06 19:00:54,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:54,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:54,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 19:00:54,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:00:54,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,131 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:54,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 19:00:54,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 19:00:54,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,134 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:54,155 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:00:54,155 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:00:54,155 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:00:54,155 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:00:54,155 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-06 19:00:54,155 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:54,155 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:00:54,156 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:00:54,156 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex07.c_Iteration3_Loop [2025-02-06 19:00:54,156 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:00:54,156 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:00:54,159 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:54,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:54,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:54,215 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:00:54,215 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-06 19:00:54,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:54,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:54,219 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 19:00:54,220 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 19:00:54,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:54,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:54,241 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:00:54,242 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 19:00:54,249 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 19:00:54,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:54,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:54,252 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 19:00:54,255 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 19:00:54,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:54,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:54,278 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-06 19:00:54,278 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 19:00:54,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-02-06 19:00:54,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:54,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:54,288 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 19:00:54,290 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 19:00:54,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-06 19:00:54,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:54,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-02-06 19:00:54,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:54,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:54,310 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 19:00:54,311 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 19:00:54,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-06 19:00:54,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-06 19:00:54,335 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-06 19:00:54,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-02-06 19:00:54,339 INFO L204 LassoAnalysis]: Preferences: [2025-02-06 19:00:54,339 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-06 19:00:54,339 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-06 19:00:54,339 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-06 19:00:54,339 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-06 19:00:54,339 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:54,339 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-06 19:00:54,339 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-06 19:00:54,339 INFO L132 ssoRankerPreferences]: Filename of dumped script: Ex07.c_Iteration3_Loop [2025-02-06 19:00:54,339 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-06 19:00:54,339 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-06 19:00:54,341 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:54,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:54,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-06 19:00:54,394 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-06 19:00:54,394 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-06 19:00:54,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:54,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:54,397 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 19:00:54,400 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 19:00:54,403 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 19:00:54,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:54,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:54,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:54,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:54,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-06 19:00:54,422 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-06 19:00:54,426 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:00:54,434 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 19:00:54,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:54,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:54,438 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 19:00:54,440 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 19:00:54,441 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 19:00:54,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:54,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:54,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:54,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:54,457 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-06 19:00:54,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-06 19:00:54,467 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-06 19:00:54,474 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 19:00:54,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:54,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:54,478 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 19:00:54,480 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 19:00:54,484 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 19:00:54,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-06 19:00:54,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-06 19:00:54,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-06 19:00:54,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-06 19:00:54,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-06 19:00:54,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-06 19:00:54,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-06 19:00:54,495 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-06 19:00:54,497 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-06 19:00:54,498 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-06 19:00:54,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:00:54,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:00:54,500 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 19:00:54,501 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 19:00:54,502 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-06 19:00:54,502 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-06 19:00:54,502 INFO L474 LassoAnalysis]: Proved termination. [2025-02-06 19:00:54,502 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2025-02-06 19:00:54,507 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 19:00:54,523 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-06 19:00:54,525 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 19:00:54,530 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 19:00:54,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:54,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:54,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:54,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:54,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 19:00:54,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:54,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:54,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:54,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:00:54,567 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 19:00:54,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 19:00:54,616 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 19:00:54,616 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 19:00:54,617 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:00:54,635 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 29 transitions. Complement of second has 5 states. [2025-02-06 19:00:54,637 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 19:00:54,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 19:00:54,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2025-02-06 19:00:54,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-06 19:00:54,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:54,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-06 19:00:54,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:54,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-06 19:00:54,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-06 19:00:54,639 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2025-02-06 19:00:54,639 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2025-02-06 19:00:54,640 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 21 states and 28 transitions. [2025-02-06 19:00:54,640 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2025-02-06 19:00:54,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2025-02-06 19:00:54,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2025-02-06 19:00:54,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-06 19:00:54,640 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 28 transitions. [2025-02-06 19:00:54,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2025-02-06 19:00:54,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2025-02-06 19:00:54,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 16 states have internal predecessors, (24), 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 19:00:54,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2025-02-06 19:00:54,645 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 24 transitions. [2025-02-06 19:00:54,645 INFO L432 stractBuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2025-02-06 19:00:54,645 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-06 19:00:54,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2025-02-06 19:00:54,645 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2025-02-06 19:00:54,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:00:54,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:00:54,646 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-06 19:00:54,646 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-06 19:00:54,646 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_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume true;" "assume !(main_~i~0#1 > 0);" [2025-02-06 19:00:54,646 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~i~0#1 < 0);" "assume true;" "assume !(main_~i~0#1 > 0);" [2025-02-06 19:00:54,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:54,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1199551, now seen corresponding path program 1 times [2025-02-06 19:00:54,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:54,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640546343] [2025-02-06 19:00:54,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:54,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:54,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 19:00:54,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 19:00:54,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,651 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:54,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 19:00:54,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 19:00:54,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,656 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:54,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:54,656 INFO L85 PathProgramCache]: Analyzing trace with hash 33858, now seen corresponding path program 1 times [2025-02-06 19:00:54,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:54,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973511360] [2025-02-06 19:00:54,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:54,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:54,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:54,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:54,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,662 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:54,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 19:00:54,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 19:00:54,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:54,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:00:54,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1376089540, now seen corresponding path program 1 times [2025-02-06 19:00:54,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:00:54,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180833775] [2025-02-06 19:00:54,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:00:54,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:00:54,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:00:54,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:00:54,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,672 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:54,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:00:54,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:00:54,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,675 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:00:54,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 19:00:54,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 19:00:54,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,702 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:00:54,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 19:00:54,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 19:00:54,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:00:54,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:00:54,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.02 07:00:54 BoogieIcfgContainer [2025-02-06 19:00:54,727 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-06 19:00:54,728 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 19:00:54,728 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 19:00:54,728 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 19:00:54,730 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:00:53" (3/4) ... [2025-02-06 19:00:54,731 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-02-06 19:00:54,764 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 19:00:54,764 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 19:00:54,765 INFO L158 Benchmark]: Toolchain (without parser) took 2011.76ms. Allocated memory is still 167.8MB. Free memory was 124.3MB in the beginning and 107.0MB in the end (delta: 17.3MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2025-02-06 19:00:54,765 INFO L158 Benchmark]: CDTParser took 1.07ms. Allocated memory is still 201.3MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:00:54,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.40ms. Allocated memory is still 167.8MB. Free memory was 124.3MB in the beginning and 114.3MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:00:54,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.37ms. Allocated memory is still 167.8MB. Free memory was 114.3MB in the beginning and 113.6MB in the end (delta: 707.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:00:54,766 INFO L158 Benchmark]: Boogie Preprocessor took 12.46ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 112.9MB in the end (delta: 716.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:00:54,766 INFO L158 Benchmark]: IcfgBuilder took 184.25ms. Allocated memory is still 167.8MB. Free memory was 112.9MB in the beginning and 103.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:00:54,769 INFO L158 Benchmark]: BuchiAutomizer took 1585.08ms. Allocated memory is still 167.8MB. Free memory was 103.6MB in the beginning and 110.4MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:00:54,769 INFO L158 Benchmark]: Witness Printer took 36.15ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 107.0MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:00:54,770 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07ms. Allocated memory is still 201.3MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.40ms. Allocated memory is still 167.8MB. Free memory was 124.3MB in the beginning and 114.3MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.37ms. Allocated memory is still 167.8MB. Free memory was 114.3MB in the beginning and 113.6MB in the end (delta: 707.6kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.46ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 112.9MB in the end (delta: 716.9kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 184.25ms. Allocated memory is still 167.8MB. Free memory was 112.9MB in the beginning and 103.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1585.08ms. Allocated memory is still 167.8MB. Free memory was 103.6MB in the beginning and 110.4MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.15ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 107.0MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function ((long) -1 * i) and consists of 3 locations. One deterministic module has affine ranking function i and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 14 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax209 hnf100 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE \read(true) [L10] COND FALSE !(i > 0) VAL [i=0] Loop: [L13] COND FALSE !(i < 0) [L9] COND TRUE \read(true) [L10] COND FALSE !(i > 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE \read(true) [L10] COND FALSE !(i > 0) VAL [i=0] Loop: [L13] COND FALSE !(i < 0) [L9] COND TRUE \read(true) [L10] COND FALSE !(i > 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-02-06 19:00:54,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)