./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB --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 0.3.0-dev-d790fec [2024-11-28 02:10:15,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:10:15,470 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 02:10:15,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:10:15,479 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:10:15,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:10:15,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:10:15,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:10:15,503 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:10:15,503 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:10:15,503 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:10:15,503 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:10:15,503 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:10:15,503 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 02:10:15,504 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 02:10:15,504 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 02:10:15,504 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 02:10:15,504 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 02:10:15,504 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 02:10:15,504 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:10:15,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 02:10:15,504 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:10:15,504 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:10:15,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:10:15,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:10:15,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 02:10:15,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 02:10:15,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 02:10:15,505 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:10:15,505 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:10:15,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:10:15,505 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 02:10:15,505 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:10:15,506 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:10:15,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:10:15,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:10:15,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:10:15,506 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 02:10:15,506 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 02:10:15,506 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB 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 [2024-11-28 02:10:15,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:10:15,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:10:15,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:10:15,793 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:10:15,793 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:10:15,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-regression/stateful_check.c [2024-11-28 02:10:18,873 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/data/6c35c9df9/519263818e824e29b082d5bdd23ec007/FLAG18b6cd2b8 [2024-11-28 02:10:19,125 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:10:19,126 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/sv-benchmarks/c/ldv-regression/stateful_check.c [2024-11-28 02:10:19,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/data/6c35c9df9/519263818e824e29b082d5bdd23ec007/FLAG18b6cd2b8 [2024-11-28 02:10:19,147 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/data/6c35c9df9/519263818e824e29b082d5bdd23ec007 [2024-11-28 02:10:19,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:10:19,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:10:19,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:10:19,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:10:19,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:10:19,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56be5d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19, skipping insertion in model container [2024-11-28 02:10:19,159 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,179 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:10:19,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:10:19,397 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:10:19,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:10:19,436 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:10:19,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19 WrapperNode [2024-11-28 02:10:19,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:10:19,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:10:19,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:10:19,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:10:19,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,488 INFO L138 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 124 [2024-11-28 02:10:19,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:10:19,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:10:19,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:10:19,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:10:19,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,501 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,518 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]. [2024-11-28 02:10:19,518 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,521 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:10:19,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:10:19,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:10:19,538 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:10:19,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (1/1) ... [2024-11-28 02:10:19,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:10:19,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:10:19,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:10:19,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 02:10:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:10:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:10:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:10:19,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:10:19,675 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:10:19,677 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:10:19,867 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-28 02:10:19,867 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:10:19,878 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:10:19,878 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:10:19,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:10:19 BoogieIcfgContainer [2024-11-28 02:10:19,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:10:19,880 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 02:10:19,880 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 02:10:19,886 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 02:10:19,887 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:10:19,887 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:10:19" (1/3) ... [2024-11-28 02:10:19,888 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41d20e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:10:19, skipping insertion in model container [2024-11-28 02:10:19,888 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:10:19,888 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:10:19" (2/3) ... [2024-11-28 02:10:19,889 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41d20e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:10:19, skipping insertion in model container [2024-11-28 02:10:19,889 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:10:19,889 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:10:19" (3/3) ... [2024-11-28 02:10:19,890 INFO L363 chiAutomizerObserver]: Analyzing ICFG stateful_check.c [2024-11-28 02:10:19,948 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 02:10:19,948 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 02:10:19,948 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 02:10:19,948 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 02:10:19,949 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 02:10:19,949 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 02:10:19,949 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 02:10:19,949 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 02:10:19,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 55 states have internal predecessors, (73), 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) [2024-11-28 02:10:19,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 44 [2024-11-28 02:10:19,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:10:19,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:10:19,984 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 02:10:19,985 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-28 02:10:19,985 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 02:10:19,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 55 states have internal predecessors, (73), 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) [2024-11-28 02:10:19,991 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 44 [2024-11-28 02:10:19,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:10:19,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:10:19,992 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 02:10:19,992 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-28 02:10:20,002 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~ldv_mutex~0 := 1;~open_called~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~switch8#1, main_#t~ret9#1, main_#t~post10#1, main_#t~ret11#1, main_#t~post12#1, main_#t~ret13#1, main_#t~post14#1, main_#t~ret15#1, main_~ldv_s_misc_fops_file_operations~0#1;main_~ldv_s_misc_fops_file_operations~0#1 := 0;assume { :begin_inline_my_init } true;havoc my_init_#res#1;~open_called~0 := 0;my_init_#res#1 := 0;" "main_#t~ret5#1 := my_init_#res#1;assume { :end_inline_my_init } true;havoc main_#t~ret5#1;" [2024-11-28 02:10:20,002 INFO L749 eck$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;" [2024-11-28 02:10:20,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:20,011 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2024-11-28 02:10:20,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:10:20,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207367678] [2024-11-28 02:10:20,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:20,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:20,103 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:10:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:20,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:10:20,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:20,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1127160859, now seen corresponding path program 1 times [2024-11-28 02:10:20,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:10:20,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250669536] [2024-11-28 02:10:20,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:20,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:20,148 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:10:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:20,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:10:20,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:20,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1511155525, now seen corresponding path program 1 times [2024-11-28 02:10:20,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:10:20,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503645660] [2024-11-28 02:10:20,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:20,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:20,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:10:20,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503645660] [2024-11-28 02:10:20,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503645660] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:10:20,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022052326] [2024-11-28 02:10:20,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:20,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:10:20,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:10:20,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:10:20,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:10:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:20,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:10:20,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:10:20,366 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:10:20,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022052326] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:10:20,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:10:20,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 02:10:20,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435767125] [2024-11-28 02:10:20,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:10:20,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:10:20,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:10:20,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:10:20,516 INFO L87 Difference]: Start difference. First operand has 56 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 55 states have internal predecessors, (73), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:10:20,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:20,579 INFO L93 Difference]: Finished difference Result 64 states and 81 transitions. [2024-11-28 02:10:20,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 81 transitions. [2024-11-28 02:10:20,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 45 [2024-11-28 02:10:20,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 48 states and 64 transitions. [2024-11-28 02:10:20,595 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2024-11-28 02:10:20,596 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2024-11-28 02:10:20,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 64 transitions. [2024-11-28 02:10:20,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:10:20,599 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 64 transitions. [2024-11-28 02:10:20,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 64 transitions. [2024-11-28 02:10:20,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-28 02:10:20,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 47 states have internal predecessors, (64), 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) [2024-11-28 02:10:20,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 64 transitions. [2024-11-28 02:10:20,626 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 64 transitions. [2024-11-28 02:10:20,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:10:20,631 INFO L425 stractBuchiCegarLoop]: Abstraction has 48 states and 64 transitions. [2024-11-28 02:10:20,631 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 02:10:20,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 64 transitions. [2024-11-28 02:10:20,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 45 [2024-11-28 02:10:20,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:10:20,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:10:20,633 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 02:10:20,633 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:20,633 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~ldv_mutex~0 := 1;~open_called~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~switch8#1, main_#t~ret9#1, main_#t~post10#1, main_#t~ret11#1, main_#t~post12#1, main_#t~ret13#1, main_#t~post14#1, main_#t~ret15#1, main_~ldv_s_misc_fops_file_operations~0#1;main_~ldv_s_misc_fops_file_operations~0#1 := 0;assume { :begin_inline_my_init } true;havoc my_init_#res#1;~open_called~0 := 0;my_init_#res#1 := 0;" "main_#t~ret5#1 := my_init_#res#1;assume { :end_inline_my_init } true;havoc main_#t~ret5#1;" [2024-11-28 02:10:20,633 INFO L749 eck$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;" [2024-11-28 02:10:20,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:20,634 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 2 times [2024-11-28 02:10:20,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:10:20,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492585385] [2024-11-28 02:10:20,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:20,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:20,642 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:10:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:20,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:10:20,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:20,653 INFO L85 PathProgramCache]: Analyzing trace with hash 582697845, now seen corresponding path program 1 times [2024-11-28 02:10:20,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:10:20,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071275412] [2024-11-28 02:10:20,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:20,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:20,663 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:10:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:20,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:10:20,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:20,668 INFO L85 PathProgramCache]: Analyzing trace with hash 399268565, now seen corresponding path program 1 times [2024-11-28 02:10:20,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:10:20,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934809806] [2024-11-28 02:10:20,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:20,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:20,695 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:10:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:20,704 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:10:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:21,017 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:10:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:10:21,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:10:21 BoogieIcfgContainer [2024-11-28 02:10:21,057 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 02:10:21,058 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:10:21,058 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:10:21,058 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:10:21,059 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:10:19" (3/4) ... [2024-11-28 02:10:21,062 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 02:10:21,101 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:10:21,102 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:10:21,105 INFO L158 Benchmark]: Toolchain (without parser) took 1952.12ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 73.7MB in the end (delta: 19.1MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2024-11-28 02:10:21,106 INFO L158 Benchmark]: CDTParser took 1.20ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.7MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:10:21,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.25ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 81.8MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:10:21,106 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.46ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:10:21,106 INFO L158 Benchmark]: Boogie Preprocessor took 46.11ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 78.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:10:21,107 INFO L158 Benchmark]: RCFGBuilder took 341.09ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 67.4MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:10:21,107 INFO L158 Benchmark]: BuchiAutomizer took 1177.41ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 75.3MB in the end (delta: -8.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:10:21,107 INFO L158 Benchmark]: Witness Printer took 44.10ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 73.7MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:10:21,110 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.20ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.7MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.25ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 81.8MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.46ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.11ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 78.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 341.09ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 67.4MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1177.41ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 75.3MB in the end (delta: -8.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 44.10ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 73.7MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. 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 48 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 52 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! [2024-11-28 02:10:21,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:10:21,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a95c59d5-e2a8-4fd9-9ab7-38ac968a26a0/bin/uautomizer-verify-aQ6SnzHsRB/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)