./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd --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-826ab2b [2024-11-13 16:09:59,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:09:59,901 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-13 16:09:59,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:09:59,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:09:59,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:09:59,950 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:09:59,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:09:59,951 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:09:59,952 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:09:59,954 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:09:59,954 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:09:59,954 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:09:59,954 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 16:09:59,954 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 16:09:59,955 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 16:09:59,956 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 16:09:59,956 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 16:09:59,956 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 16:09:59,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:09:59,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 16:09:59,956 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:09:59,956 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:09:59,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:09:59,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:09:59,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 16:09:59,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 16:09:59,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 16:09:59,957 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:09:59,957 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:09:59,957 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:09:59,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:09:59,958 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 16:09:59,958 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:09:59,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:09:59,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:09:59,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:09:59,959 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:09:59,959 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 16:09:59,960 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_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd 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 [2024-11-13 16:10:00,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:10:00,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:10:00,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:10:00,314 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:10:00,314 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:10:00,316 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/ldv-regression/stateful_check.c Unable to find full path for "g++" [2024-11-13 16:10:02,379 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:10:02,623 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:10:02,626 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/sv-benchmarks/c/ldv-regression/stateful_check.c [2024-11-13 16:10:02,635 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/data/bebe096c6/725456bac8a84ae284cc2aab897c2b07/FLAG0b6e4d441 [2024-11-13 16:10:02,657 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/data/bebe096c6/725456bac8a84ae284cc2aab897c2b07 [2024-11-13 16:10:02,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:10:02,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:10:02,666 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:02,666 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:10:02,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:10:02,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:02" (1/1) ... [2024-11-13 16:10:02,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c332dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:02, skipping insertion in model container [2024-11-13 16:10:02,677 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:02" (1/1) ... [2024-11-13 16:10:02,699 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:10:02,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:02,958 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:10:02,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:03,013 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:10:03,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03 WrapperNode [2024-11-13 16:10:03,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:03,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:03,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:10:03,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:10:03,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (1/1) ... [2024-11-13 16:10:03,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (1/1) ... [2024-11-13 16:10:03,066 INFO L138 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 124 [2024-11-13 16:10:03,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:03,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:10:03,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:10:03,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:10:03,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (1/1) ... [2024-11-13 16:10:03,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (1/1) ... [2024-11-13 16:10:03,083 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (1/1) ... [2024-11-13 16:10:03,103 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]. [2024-11-13 16:10:03,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (1/1) ... [2024-11-13 16:10:03,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (1/1) ... [2024-11-13 16:10:03,110 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (1/1) ... [2024-11-13 16:10:03,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (1/1) ... [2024-11-13 16:10:03,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (1/1) ... [2024-11-13 16:10:03,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (1/1) ... [2024-11-13 16:10:03,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:10:03,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:10:03,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:10:03,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:10:03,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (1/1) ... [2024-11-13 16:10:03,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 16:10:03,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:03,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 16:10:03,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 16:10:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:10:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:10:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:10:03,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:10:03,315 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:10:03,317 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:10:03,602 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-13 16:10:03,602 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:10:03,615 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:10:03,615 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:10:03,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:03 BoogieIcfgContainer [2024-11-13 16:10:03,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:10:03,617 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 16:10:03,617 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 16:10:03,625 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 16:10:03,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 16:10:03,627 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 04:10:02" (1/3) ... [2024-11-13 16:10:03,628 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d314630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 04:10:03, skipping insertion in model container [2024-11-13 16:10:03,628 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 16:10:03,629 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:03" (2/3) ... [2024-11-13 16:10:03,629 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d314630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 04:10:03, skipping insertion in model container [2024-11-13 16:10:03,629 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 16:10:03,630 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:03" (3/3) ... [2024-11-13 16:10:03,631 INFO L333 chiAutomizerObserver]: Analyzing ICFG stateful_check.c [2024-11-13 16:10:03,713 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 16:10:03,713 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 16:10:03,713 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 16:10:03,713 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 16:10:03,713 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 16:10:03,713 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 16:10:03,714 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 16:10:03,714 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 16:10:03,722 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) [2024-11-13 16:10:03,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-11-13 16:10:03,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:10:03,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:10:03,754 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 16:10:03,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-13 16:10:03,755 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 16:10:03,756 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) [2024-11-13 16:10:03,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-11-13 16:10:03,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:10:03,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:10:03,764 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 16:10:03,764 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-13 16:10:03,773 INFO L745 eck$LassoCheckResult]: Stem: 27#$Ultimate##0true 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; 33#L-1true 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; 4#my_init_returnLabel#1true main_#t~ret5#1 := my_init_#res#1;assume { :end_inline_my_init } true;havoc main_#t~ret5#1; 8#L78-3true [2024-11-13 16:10:03,774 INFO L747 eck$LassoCheckResult]: Loop: 8#L78-3true havoc main_#t~nondet6#1; 19#L78-1true 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; 20#L82true assume main_#t~switch8#1; 14#L82-1true assume !(0 == main_~ldv_s_misc_fops_file_operations~0#1); 13#L80true havoc main_#t~nondet7#1;havoc main_#t~switch8#1;havoc main_#t~nondet7#1;havoc main_#t~switch8#1; 8#L78-3true [2024-11-13 16:10:03,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:03,780 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2024-11-13 16:10:03,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:03,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431200445] [2024-11-13 16:10:03,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:03,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:03,881 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:03,921 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:03,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:03,925 INFO L85 PathProgramCache]: Analyzing trace with hash 36420990, now seen corresponding path program 1 times [2024-11-13 16:10:03,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:03,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039799293] [2024-11-13 16:10:03,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:03,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:03,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:03,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:03,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:03,951 INFO L85 PathProgramCache]: Analyzing trace with hash 89861342, now seen corresponding path program 1 times [2024-11-13 16:10:03,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:03,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119835516] [2024-11-13 16:10:03,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:03,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:04,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:10:04,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:10:04,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119835516] [2024-11-13 16:10:04,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119835516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:04,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:04,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:10:04,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839706752] [2024-11-13 16:10:04,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:04,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:10:04,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:10:04,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:10:04,258 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) [2024-11-13 16:10:04,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:10:04,339 INFO L93 Difference]: Finished difference Result 62 states and 79 transitions. [2024-11-13 16:10:04,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 79 transitions. [2024-11-13 16:10:04,346 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-11-13 16:10:04,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 46 states and 62 transitions. [2024-11-13 16:10:04,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2024-11-13 16:10:04,361 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2024-11-13 16:10:04,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 62 transitions. [2024-11-13 16:10:04,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 16:10:04,364 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 62 transitions. [2024-11-13 16:10:04,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 62 transitions. [2024-11-13 16:10:04,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-13 16:10:04,400 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) [2024-11-13 16:10:04,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2024-11-13 16:10:04,403 INFO L240 hiAutomatonCegarLoop]: Abstraction has 46 states and 62 transitions. [2024-11-13 16:10:04,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:10:04,409 INFO L424 stractBuchiCegarLoop]: Abstraction has 46 states and 62 transitions. [2024-11-13 16:10:04,410 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 16:10:04,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 62 transitions. [2024-11-13 16:10:04,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 43 [2024-11-13 16:10:04,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 16:10:04,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 16:10:04,412 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 16:10:04,413 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:10:04,413 INFO L745 eck$LassoCheckResult]: Stem: 167#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(17, 2);call #Ultimate.allocInit(12, 3);~ldv_mutex~0 := 1;~open_called~0 := 0; 144#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~switch8#1, main_#t~ret9#1, main_#t~post10#1, main_#t~ret11#1, main_#t~post12#1, main_#t~ret13#1, main_#t~post14#1, main_#t~ret15#1, main_~ldv_s_misc_fops_file_operations~0#1;main_~ldv_s_misc_fops_file_operations~0#1 := 0;assume { :begin_inline_my_init } true;havoc my_init_#res#1;~open_called~0 := 0;my_init_#res#1 := 0; 132#my_init_returnLabel#1 main_#t~ret5#1 := my_init_#res#1;assume { :end_inline_my_init } true;havoc main_#t~ret5#1; 133#L78-3 [2024-11-13 16:10:04,413 INFO L747 eck$LassoCheckResult]: Loop: 133#L78-3 havoc main_#t~nondet6#1; 141#L78-1 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; 172#L82 assume !main_#t~switch8#1;main_#t~switch8#1 := main_#t~switch8#1 || 1 == main_#t~nondet7#1; 169#L90 assume main_#t~switch8#1; 164#L90-1 assume !(1 == main_~ldv_s_misc_fops_file_operations~0#1); 147#L80 havoc main_#t~nondet7#1;havoc main_#t~switch8#1;havoc main_#t~nondet7#1;havoc main_#t~switch8#1; 133#L78-3 [2024-11-13 16:10:04,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:04,417 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 2 times [2024-11-13 16:10:04,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:04,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361913668] [2024-11-13 16:10:04,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:04,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:04,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:04,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:04,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:04,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1129500272, now seen corresponding path program 1 times [2024-11-13 16:10:04,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:04,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680149291] [2024-11-13 16:10:04,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:04,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:04,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:04,470 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:04,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:04,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1508816112, now seen corresponding path program 1 times [2024-11-13 16:10:04,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:04,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129851490] [2024-11-13 16:10:04,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:04,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:04,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:04,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:04,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:04,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 04:10:04 BoogieIcfgContainer [2024-11-13 16:10:04,857 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 16:10:04,858 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:10:04,858 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:10:04,858 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:10:04,860 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:03" (3/4) ... [2024-11-13 16:10:04,862 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 16:10:04,900 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 16:10:04,904 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:10:04,905 INFO L158 Benchmark]: Toolchain (without parser) took 2241.77ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 78.9MB in the end (delta: 14.5MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-11-13 16:10:04,906 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:04,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.63ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 82.3MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:10:04,907 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.89ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 80.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:04,908 INFO L158 Benchmark]: Boogie Preprocessor took 60.23ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:10:04,908 INFO L158 Benchmark]: RCFGBuilder took 487.36ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 67.6MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:10:04,909 INFO L158 Benchmark]: BuchiAutomizer took 1239.72ms. Allocated memory is still 117.4MB. Free memory was 67.6MB in the beginning and 80.7MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:04,909 INFO L158 Benchmark]: Witness Printer took 46.45ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 78.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:04,912 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.63ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 82.3MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.89ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 80.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 60.23ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 487.36ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 67.6MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1239.72ms. Allocated memory is still 117.4MB. Free memory was 67.6MB in the beginning and 80.7MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.45ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 78.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) 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 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, 0.1s 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! [2024-11-13 16:10:04,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f3be9d-64d1-405c-9b0b-81507db0704d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)