./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-regression/stateful_check.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/ldv-regression/stateful_check.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 32bit --witnessprinter.graph.data.programhash 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 21:21:12,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 21:21:12,317 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-12 21:21:12,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 21:21:12,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 21:21:12,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 21:21:12,355 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 21:21:12,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 21:21:12,356 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 21:21:12,356 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 21:21:12,357 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 21:21:12,358 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 21:21:12,359 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 21:21:12,362 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 21:21:12,363 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 21:21:12,363 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 21:21:12,363 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 21:21:12,363 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 21:21:12,364 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 21:21:12,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 21:21:12,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 21:21:12,365 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 21:21:12,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 21:21:12,366 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 21:21:12,366 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 21:21:12,366 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 21:21:12,367 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 21:21:12,367 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 21:21:12,367 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 21:21:12,367 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 21:21:12,368 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 21:21:12,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 21:21:12,368 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 21:21:12,368 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 21:21:12,368 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 21:21:12,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 21:21:12,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 21:21:12,369 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 21:21:12,370 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 21:21:12,371 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e [2024-11-12 21:21:12,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 21:21:12,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 21:21:12,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 21:21:12,717 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 21:21:12,717 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 21:21:12,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/stateful_check.c [2024-11-12 21:21:14,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 21:21:14,400 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 21:21:14,401 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/stateful_check.c [2024-11-12 21:21:14,410 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c22c2639/2d8be91efadf4863af4f2a0c72d49f8c/FLAGf1a62209a [2024-11-12 21:21:14,798 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c22c2639/2d8be91efadf4863af4f2a0c72d49f8c [2024-11-12 21:21:14,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 21:21:14,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 21:21:14,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 21:21:14,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 21:21:14,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 21:21:14,812 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:21:14" (1/1) ... [2024-11-12 21:21:14,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c85711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:14, skipping insertion in model container [2024-11-12 21:21:14,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:21:14" (1/1) ... [2024-11-12 21:21:14,840 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 21:21:15,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:21:15,037 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 21:21:15,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:21:15,068 INFO L204 MainTranslator]: Completed translation [2024-11-12 21:21:15,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15 WrapperNode [2024-11-12 21:21:15,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 21:21:15,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 21:21:15,070 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 21:21:15,070 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 21:21:15,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (1/1) ... [2024-11-12 21:21:15,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (1/1) ... [2024-11-12 21:21:15,104 INFO L138 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 125 [2024-11-12 21:21:15,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 21:21:15,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 21:21:15,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 21:21:15,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 21:21:15,118 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (1/1) ... [2024-11-12 21:21:15,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (1/1) ... [2024-11-12 21:21:15,120 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (1/1) ... [2024-11-12 21:21:15,134 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 21:21:15,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (1/1) ... [2024-11-12 21:21:15,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (1/1) ... [2024-11-12 21:21:15,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (1/1) ... [2024-11-12 21:21:15,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (1/1) ... [2024-11-12 21:21:15,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (1/1) ... [2024-11-12 21:21:15,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (1/1) ... [2024-11-12 21:21:15,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 21:21:15,151 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 21:21:15,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 21:21:15,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 21:21:15,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (1/1) ... [2024-11-12 21:21:15,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:21:15,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:21:15,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-12 21:21:15,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-12 21:21:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 21:21:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 21:21:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 21:21:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 21:21:15,404 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 21:21:15,407 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 21:21:15,595 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-12 21:21:15,596 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 21:21:15,610 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 21:21:15,611 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 21:21:15,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:21:15 BoogieIcfgContainer [2024-11-12 21:21:15,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 21:21:15,612 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 21:21:15,612 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 21:21:15,616 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 21:21:15,616 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:21:15,617 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 09:21:14" (1/3) ... [2024-11-12 21:21:15,617 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5374fc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:21:15, skipping insertion in model container [2024-11-12 21:21:15,617 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:21:15,618 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:21:15" (2/3) ... [2024-11-12 21:21:15,618 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5374fc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:21:15, skipping insertion in model container [2024-11-12 21:21:15,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:21:15,619 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:21:15" (3/3) ... [2024-11-12 21:21:15,620 INFO L332 chiAutomizerObserver]: Analyzing ICFG stateful_check.c [2024-11-12 21:21:15,666 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 21:21:15,666 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 21:21:15,666 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 21:21:15,666 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 21:21:15,667 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 21:21:15,667 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 21:21:15,667 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 21:21:15,667 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 21:21:15,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 55 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 54 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:21:15,685 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-11-12 21:21:15,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:21:15,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:21:15,690 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-12 21:21:15,691 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-12 21:21:15,691 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 21:21:15,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 55 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 54 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:21:15,694 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-11-12 21:21:15,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:21:15,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:21:15,695 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-12 21:21:15,696 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-12 21:21:15,702 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~ldv_mutex~0 := 1;~open_called~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~switch8#1, main_#t~ret9#1, main_#t~post10#1, main_#t~ret11#1, main_#t~post12#1, main_#t~ret13#1, main_#t~post14#1, main_#t~ret15#1, main_~ldv_s_misc_fops_file_operations~0#1;main_~ldv_s_misc_fops_file_operations~0#1 := 0;assume { :begin_inline_my_init } true;havoc my_init_#res#1;~open_called~0 := 0;my_init_#res#1 := 0;" "main_#t~ret5#1 := my_init_#res#1;assume { :end_inline_my_init } true;havoc main_#t~ret5#1;" [2024-11-12 21:21:15,702 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet6#1;" "assume !!(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_#t~switch8#1 := 0 == main_#t~nondet7#1;" "assume main_#t~switch8#1;" "assume !(0 == main_~ldv_s_misc_fops_file_operations~0#1);" "havoc main_#t~nondet7#1;havoc main_#t~switch8#1;havoc main_#t~nondet7#1;havoc main_#t~switch8#1;" [2024-11-12 21:21:15,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:21:15,707 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2024-11-12 21:21:15,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:21:15,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113947837] [2024-11-12 21:21:15,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:15,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:21:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:15,794 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:21:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:15,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:21:15,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:21:15,827 INFO L85 PathProgramCache]: Analyzing trace with hash 37375295, now seen corresponding path program 1 times [2024-11-12 21:21:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:21:15,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062958737] [2024-11-12 21:21:15,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:15,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:21:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:15,842 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:21:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:15,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:21:15,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:21:15,852 INFO L85 PathProgramCache]: Analyzing trace with hash 90815647, now seen corresponding path program 1 times [2024-11-12 21:21:15,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:21:15,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561038177] [2024-11-12 21:21:15,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:15,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:21:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:21:15,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:21:15,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561038177] [2024-11-12 21:21:15,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561038177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:21:15,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275583117] [2024-11-12 21:21:15,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:15,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:21:15,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:21:15,948 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:21:15,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 21:21:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:21:16,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 21:21:16,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:21:16,032 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:21:16,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275583117] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:21:16,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:21:16,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-12 21:21:16,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021625516] [2024-11-12 21:21:16,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:21:16,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:21:16,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 21:21:16,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 21:21:16,164 INFO L87 Difference]: Start difference. First operand has 55 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 54 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:21:16,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:21:16,228 INFO L93 Difference]: Finished difference Result 62 states and 79 transitions. [2024-11-12 21:21:16,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 79 transitions. [2024-11-12 21:21:16,232 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-11-12 21:21:16,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 46 states and 62 transitions. [2024-11-12 21:21:16,241 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2024-11-12 21:21:16,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-12 21:21:16,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 62 transitions. [2024-11-12 21:21:16,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:21:16,243 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 62 transitions. [2024-11-12 21:21:16,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 62 transitions. [2024-11-12 21:21:16,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-12 21:21:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 45 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:21:16,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2024-11-12 21:21:16,269 INFO L240 hiAutomatonCegarLoop]: Abstraction has 46 states and 62 transitions. [2024-11-12 21:21:16,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 21:21:16,273 INFO L426 stractBuchiCegarLoop]: Abstraction has 46 states and 62 transitions. [2024-11-12 21:21:16,274 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 21:21:16,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 62 transitions. [2024-11-12 21:21:16,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-11-12 21:21:16,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:21:16,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:21:16,280 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-12 21:21:16,280 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-12 21:21:16,280 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~ldv_mutex~0 := 1;~open_called~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~switch8#1, main_#t~ret9#1, main_#t~post10#1, main_#t~ret11#1, main_#t~post12#1, main_#t~ret13#1, main_#t~post14#1, main_#t~ret15#1, main_~ldv_s_misc_fops_file_operations~0#1;main_~ldv_s_misc_fops_file_operations~0#1 := 0;assume { :begin_inline_my_init } true;havoc my_init_#res#1;~open_called~0 := 0;my_init_#res#1 := 0;" "main_#t~ret5#1 := my_init_#res#1;assume { :end_inline_my_init } true;havoc main_#t~ret5#1;" [2024-11-12 21:21:16,280 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet6#1;" "assume !!(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_#t~switch8#1 := 0 == main_#t~nondet7#1;" "assume !main_#t~switch8#1;main_#t~switch8#1 := main_#t~switch8#1 || 1 == main_#t~nondet7#1;" "assume main_#t~switch8#1;" "assume !(1 == main_~ldv_s_misc_fops_file_operations~0#1);" "havoc main_#t~nondet7#1;havoc main_#t~switch8#1;havoc main_#t~nondet7#1;havoc main_#t~switch8#1;" [2024-11-12 21:21:16,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:21:16,281 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 2 times [2024-11-12 21:21:16,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:21:16,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670533797] [2024-11-12 21:21:16,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:16,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:21:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:16,289 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:21:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:16,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:21:16,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:21:16,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1159083728, now seen corresponding path program 1 times [2024-11-12 21:21:16,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:21:16,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147563130] [2024-11-12 21:21:16,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:16,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:21:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:16,311 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:21:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:16,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:21:16,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:21:16,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1479232656, now seen corresponding path program 1 times [2024-11-12 21:21:16,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:21:16,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847157165] [2024-11-12 21:21:16,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:21:16,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:21:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:16,333 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:21:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:16,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:21:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:16,595 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:21:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:21:16,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 09:21:16 BoogieIcfgContainer [2024-11-12 21:21:16,634 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 21:21:16,635 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 21:21:16,635 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 21:21:16,635 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 21:21:16,636 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:21:15" (3/4) ... [2024-11-12 21:21:16,638 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-12 21:21:16,672 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 21:21:16,672 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 21:21:16,672 INFO L158 Benchmark]: Toolchain (without parser) took 1869.82ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 61.7MB in the end (delta: 44.7MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2024-11-12 21:21:16,673 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:21:16,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.13ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 93.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 21:21:16,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.90ms. Allocated memory is still 155.2MB. Free memory was 93.9MB in the beginning and 92.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 21:21:16,674 INFO L158 Benchmark]: Boogie Preprocessor took 41.31ms. Allocated memory is still 155.2MB. Free memory was 92.4MB in the beginning and 90.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 21:21:16,674 INFO L158 Benchmark]: RCFGBuilder took 460.20ms. Allocated memory is still 155.2MB. Free memory was 90.3MB in the beginning and 116.9MB in the end (delta: -26.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 21:21:16,675 INFO L158 Benchmark]: BuchiAutomizer took 1021.91ms. Allocated memory is still 155.2MB. Free memory was 116.9MB in the beginning and 63.8MB in the end (delta: 53.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-11-12 21:21:16,675 INFO L158 Benchmark]: Witness Printer took 37.11ms. Allocated memory is still 155.2MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 21:21:16,677 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.13ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 93.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.90ms. Allocated memory is still 155.2MB. Free memory was 93.9MB in the beginning and 92.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.31ms. Allocated memory is still 155.2MB. Free memory was 92.4MB in the beginning and 90.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.20ms. Allocated memory is still 155.2MB. Free memory was 90.3MB in the beginning and 116.9MB in the end (delta: -26.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1021.91ms. Allocated memory is still 155.2MB. Free memory was 116.9MB in the beginning and 63.8MB in the end (delta: 53.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Witness Printer took 37.11ms. Allocated memory is still 155.2MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 46 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 90 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 51 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 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: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 78]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L11] int ldv_mutex = 1; [L13] int open_called = 0; VAL [ldv_mutex=1, open_called=0] [L76] int ldv_s_misc_fops_file_operations = 0; [L77] CALL my_init() [L71] open_called = 0 [L72] return 0; VAL [ldv_mutex=1, open_called=0] [L77] RET my_init() Loop: [L78] COND TRUE __VERIFIER_nondet_int() [L82] case 0: [L90] case 1: End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 78]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] int ldv_mutex = 1; [L13] int open_called = 0; VAL [ldv_mutex=1, open_called=0] [L76] int ldv_s_misc_fops_file_operations = 0; [L77] CALL my_init() [L71] open_called = 0 [L72] return 0; VAL [ldv_mutex=1, open_called=0] [L77] RET my_init() Loop: [L78] COND TRUE __VERIFIER_nondet_int() [L82] case 0: [L90] case 1: End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-12 21:21:16,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 21:21:16,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)