./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/WhileFalse.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/WhileFalse.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 6bafde5168b708b72da7f2587edb5230d20fcc9c2ad1a62f6bbb27f7dfec2f68 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:18:48,165 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:18:48,243 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-08 14:18:48,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:18:48,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:18:48,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-08 14:18:48,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:18:48,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:18:48,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:18:48,280 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:18:48,280 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:18:48,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:18:48,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:18:48,281 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:18:48,281 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-08 14:18:48,282 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-08 14:18:48,282 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-08 14:18:48,282 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-08 14:18:48,282 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-08 14:18:48,283 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-08 14:18:48,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:18:48,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-08 14:18:48,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:18:48,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:18:48,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-08 14:18:48,283 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-08 14:18:48,283 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-08 14:18:48,283 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:18:48,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:18:48,284 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-08 14:18:48,284 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:18:48,284 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:18:48,284 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:18:48,284 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:18:48,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:18:48,284 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:18:48,285 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-08 14:18:48,285 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 -> 6bafde5168b708b72da7f2587edb5230d20fcc9c2ad1a62f6bbb27f7dfec2f68 [2025-02-08 14:18:48,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:18:48,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:18:48,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:18:48,566 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:18:48,566 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:18:48,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/WhileFalse.c [2025-02-08 14:18:49,853 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d3c33694/886ca96d455443f0960ece42185a8922/FLAG09e13166c [2025-02-08 14:18:50,063 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:18:50,064 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted/WhileFalse.c [2025-02-08 14:18:50,069 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d3c33694/886ca96d455443f0960ece42185a8922/FLAG09e13166c [2025-02-08 14:18:50,408 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d3c33694/886ca96d455443f0960ece42185a8922 [2025-02-08 14:18:50,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:18:50,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:18:50,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:18:50,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:18:50,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:18:50,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415ef614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50, skipping insertion in model container [2025-02-08 14:18:50,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,429 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:18:50,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:18:50,543 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:18:50,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:18:50,561 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:18:50,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50 WrapperNode [2025-02-08 14:18:50,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:18:50,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:18:50,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:18:50,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:18:50,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,580 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5 [2025-02-08 14:18:50,581 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:18:50,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:18:50,582 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:18:50,582 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:18:50,588 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,589 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,593 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-08 14:18:50,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,594 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:18:50,599 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:18:50,599 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:18:50,600 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:18:50,600 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (1/1) ... [2025-02-08 14:18:50,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:18:50,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:18:50,632 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) [2025-02-08 14:18:50,637 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 [2025-02-08 14:18:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:18:50,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:18:50,719 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:18:50,720 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:18:50,766 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2025-02-08 14:18:50,766 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:18:50,774 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:18:50,774 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:18:50,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:18:50 BoogieIcfgContainer [2025-02-08 14:18:50,774 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:18:50,775 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-08 14:18:50,775 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-08 14:18:50,780 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-08 14:18:50,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:18:50,781 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.02 02:18:50" (1/3) ... [2025-02-08 14:18:50,782 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@fb0dd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:18:50, skipping insertion in model container [2025-02-08 14:18:50,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:18:50,782 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:18:50" (2/3) ... [2025-02-08 14:18:50,782 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@fb0dd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:18:50, skipping insertion in model container [2025-02-08 14:18:50,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:18:50,783 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:18:50" (3/3) ... [2025-02-08 14:18:50,784 INFO L363 chiAutomizerObserver]: Analyzing ICFG WhileFalse.c [2025-02-08 14:18:50,834 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-08 14:18:50,835 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-08 14:18:50,835 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-08 14:18:50,835 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-08 14:18:50,835 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-08 14:18:50,836 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-08 14:18:50,836 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-08 14:18:50,836 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-08 14:18:50,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:18:50,853 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:18:50,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:18:50,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:18:50,858 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:18:50,858 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-08 14:18:50,859 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-08 14:18:50,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:18:50,859 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2025-02-08 14:18:50,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:18:50,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:18:50,859 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:18:50,859 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-02-08 14:18:50,866 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;" [2025-02-08 14:18:50,867 INFO L754 eck$LassoCheckResult]: Loop: "assume false;" [2025-02-08 14:18:50,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:50,872 INFO L85 PathProgramCache]: Analyzing trace with hash 33, now seen corresponding path program 1 times [2025-02-08 14:18:50,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:50,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155408058] [2025-02-08 14:18:50,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:50,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:50,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:50,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:50,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:50,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:50,946 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:18:50,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:50,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:50,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:50,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:18:50,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:18:50,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:18:50,967 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2025-02-08 14:18:50,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:18:50,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378408575] [2025-02-08 14:18:50,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:18:50,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:18:50,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:18:50,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:18:50,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:18:50,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:18:50,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:18:50,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:18:50,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378408575] [2025-02-08 14:18:50,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378408575] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:18:50,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:18:50,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2025-02-08 14:18:50,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539966923] [2025-02-08 14:18:50,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:18:51,000 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-08 14:18:51,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:18:51,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 14:18:51,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 14:18:51,031 INFO L87 Difference]: Start difference. First operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2025-02-08 14:18:51,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:18:51,037 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2025-02-08 14:18:51,038 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 3 transitions. [2025-02-08 14:18:51,039 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:18:51,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 0 states and 0 transitions. [2025-02-08 14:18:51,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-08 14:18:51,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-08 14:18:51,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-08 14:18:51,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:18:51,046 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:18:51,046 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:18:51,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 14:18:51,050 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:18:51,052 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-08 14:18:51,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-08 14:18:51,052 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:18:51,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-08 14:18:51,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.02 02:18:51 BoogieIcfgContainer [2025-02-08 14:18:51,061 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-08 14:18:51,062 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:18:51,062 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:18:51,063 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:18:51,064 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:18:50" (3/4) ... [2025-02-08 14:18:51,066 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 14:18:51,066 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:18:51,067 INFO L158 Benchmark]: Toolchain (without parser) took 656.05ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 78.9MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 14:18:51,069 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 201.3MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:18:51,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 149.25ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 103.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:18:51,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.85ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 102.2MB in the end (delta: 872.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:18:51,070 INFO L158 Benchmark]: Boogie Preprocessor took 14.49ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 101.3MB in the end (delta: 894.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:18:51,070 INFO L158 Benchmark]: IcfgBuilder took 175.43ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 92.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:18:51,071 INFO L158 Benchmark]: BuchiAutomizer took 286.10ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 78.9MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 14:18:51,071 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 142.6MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:18:51,073 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 201.3MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 149.25ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 103.0MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.85ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 102.2MB in the end (delta: 872.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.49ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 101.3MB in the end (delta: 894.1kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 175.43ms. Allocated memory is still 142.6MB. Free memory was 101.3MB in the beginning and 92.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 286.10ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 78.9MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 142.6MB. Free memory is still 78.9MB. 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 3 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-08 14:18:51,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE