./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/systemc/toy2.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/systemc/toy2.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a77d6f304c19846fdc8cd5bba9216d69953659ded966cffbf7faa285e2d864a4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 23:19:49,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 23:19:49,906 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-10 23:19:49,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 23:19:49,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 23:19:49,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 23:19:49,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 23:19:49,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 23:19:49,963 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 23:19:49,964 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 23:19:49,964 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 23:19:49,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 23:19:49,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 23:19:49,966 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 23:19:49,966 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 23:19:49,966 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 23:19:49,966 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 23:19:49,967 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 23:19:49,967 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 23:19:49,967 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 23:19:49,967 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 23:19:49,968 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 23:19:49,968 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 23:19:49,968 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 23:19:49,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 23:19:49,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 23:19:49,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 23:19:49,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 23:19:49,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 23:19:49,969 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 23:19:49,970 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 23:19:49,970 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 23:19:49,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 23:19:49,970 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 23:19:49,970 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 23:19:49,971 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 23:19:49,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 23:19:49,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 23:19:49,971 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 23:19:49,972 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 23:19:49,972 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a77d6f304c19846fdc8cd5bba9216d69953659ded966cffbf7faa285e2d864a4 [2024-11-10 23:19:50,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 23:19:50,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 23:19:50,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 23:19:50,204 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 23:19:50,205 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 23:19:50,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/toy2.cil.c [2024-11-10 23:19:51,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 23:19:51,852 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 23:19:51,855 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/toy2.cil.c [2024-11-10 23:19:51,871 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ae6fdd3/9e0b2a07385243e5bda70712246cc96a/FLAG1f2400af9 [2024-11-10 23:19:51,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ae6fdd3/9e0b2a07385243e5bda70712246cc96a [2024-11-10 23:19:51,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 23:19:51,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 23:19:51,892 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 23:19:51,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 23:19:51,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 23:19:51,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:19:51" (1/1) ... [2024-11-10 23:19:51,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5288da00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:51, skipping insertion in model container [2024-11-10 23:19:51,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:19:51" (1/1) ... [2024-11-10 23:19:51,932 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 23:19:52,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:19:52,153 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 23:19:52,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:19:52,202 INFO L204 MainTranslator]: Completed translation [2024-11-10 23:19:52,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52 WrapperNode [2024-11-10 23:19:52,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 23:19:52,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 23:19:52,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 23:19:52,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 23:19:52,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (1/1) ... [2024-11-10 23:19:52,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (1/1) ... [2024-11-10 23:19:52,236 INFO L138 Inliner]: procedures = 20, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 355 [2024-11-10 23:19:52,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 23:19:52,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 23:19:52,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 23:19:52,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 23:19:52,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (1/1) ... [2024-11-10 23:19:52,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (1/1) ... [2024-11-10 23:19:52,248 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (1/1) ... [2024-11-10 23:19:52,262 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]. [2024-11-10 23:19:52,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (1/1) ... [2024-11-10 23:19:52,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (1/1) ... [2024-11-10 23:19:52,267 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (1/1) ... [2024-11-10 23:19:52,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (1/1) ... [2024-11-10 23:19:52,269 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (1/1) ... [2024-11-10 23:19:52,269 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (1/1) ... [2024-11-10 23:19:52,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 23:19:52,272 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 23:19:52,272 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 23:19:52,272 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 23:19:52,273 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (1/1) ... [2024-11-10 23:19:52,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:19:52,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:19:52,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-10 23:19:52,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-10 23:19:52,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 23:19:52,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 23:19:52,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 23:19:52,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 23:19:52,412 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 23:19:52,413 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 23:19:52,722 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-10 23:19:52,722 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 23:19:52,742 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 23:19:52,746 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 23:19:52,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:19:52 BoogieIcfgContainer [2024-11-10 23:19:52,747 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 23:19:52,747 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 23:19:52,748 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 23:19:52,751 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 23:19:52,756 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:19:52,756 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 11:19:51" (1/3) ... [2024-11-10 23:19:52,757 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bdf0701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:19:52, skipping insertion in model container [2024-11-10 23:19:52,757 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:19:52,761 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:52" (2/3) ... [2024-11-10 23:19:52,761 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bdf0701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:19:52, skipping insertion in model container [2024-11-10 23:19:52,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:19:52,761 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:19:52" (3/3) ... [2024-11-10 23:19:52,762 INFO L332 chiAutomizerObserver]: Analyzing ICFG toy2.cil.c [2024-11-10 23:19:52,811 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 23:19:52,811 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 23:19:52,812 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 23:19:52,812 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 23:19:52,812 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 23:19:52,812 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 23:19:52,812 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 23:19:52,812 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 23:19:52,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 151 states, 150 states have (on average 1.7133333333333334) internal successors, (257), 150 states have internal predecessors, (257), 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) [2024-11-10 23:19:52,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 114 [2024-11-10 23:19:52,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:19:52,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:19:52,846 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:19:52,847 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:19:52,847 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 23:19:52,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 151 states, 150 states have (on average 1.7133333333333334) internal successors, (257), 150 states have internal predecessors, (257), 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) [2024-11-10 23:19:52,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 114 [2024-11-10 23:19:52,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:19:52,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:19:52,859 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:19:52,859 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:19:52,865 INFO L745 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRYtrue 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(11, 2);call #Ultimate.allocInit(12, 3);~c~0 := 0;~c_t~0 := 0;~c_req_up~0 := 0;~p_in~0 := 0;~p_out~0 := 0;~wl_st~0 := 0;~c1_st~0 := 0;~c2_st~0 := 0;~wb_st~0 := 0;~r_st~0 := 0;~wl_i~0 := 0;~c1_i~0 := 0;~c2_i~0 := 0;~wb_i~0 := 0;~r_i~0 := 0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~e_e~0 := 0;~e_f~0 := 0;~e_g~0 := 0;~e_c~0 := 0;~e_p_in~0 := 0;~e_wl~0 := 0;~d~0 := 0;~data~0 := 0;~processed~0 := 0;~t_b~0 := 0; 31#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~0#1;havoc main_~__retres1~0#1;~e_wl~0 := 2;~e_c~0 := ~e_wl~0;~e_g~0 := ~e_c~0;~e_f~0 := ~e_g~0;~e_e~0 := ~e_f~0;~wl_pc~0 := 0;~c1_pc~0 := 0;~c2_pc~0 := 0;~wb_pc~0 := 0;~wb_i~0 := 1;~c2_i~0 := ~wb_i~0;~c1_i~0 := ~c2_i~0;~wl_i~0 := ~c1_i~0;~r_i~0 := 0;~c_req_up~0 := 0;~d~0 := 0;~c~0 := 0;assume { :begin_inline_start_simulation } true;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~kernel_st~0#1;start_simulation_~kernel_st~0#1 := 0; 135#L404true assume !(1 == ~c_req_up~0); 131#L415true assume !(1 == ~wl_i~0);~wl_st~0 := 2; 40#L420true assume !(1 == ~c1_i~0);~c1_st~0 := 2; 126#L425true assume !(1 == ~c2_i~0);~c2_st~0 := 2; 23#L430true assume !(1 == ~wb_i~0);~wb_st~0 := 2; 113#L435true assume !(1 == ~r_i~0);~r_st~0 := 2; 117#L440true assume !(0 == ~e_f~0); 42#L445true assume !(0 == ~e_g~0); 111#L450true assume !(0 == ~e_e~0); 7#L455true assume !(0 == ~e_c~0); 72#L460true assume !(0 == ~e_wl~0); 148#L465true assume 1 == ~wl_pc~0; 149#L466true assume 1 == ~e_wl~0;~wl_st~0 := 0; 124#L483true assume !(1 == ~c1_pc~0); 136#L492true assume !(1 == ~c2_pc~0); 57#L501true assume !(1 == ~wb_pc~0); 101#L510true assume !(1 == ~e_c~0); 46#L515true assume !(1 == ~e_e~0); 47#L520true assume !(1 == ~e_f~0); 2#L525true assume !(1 == ~e_g~0); 48#L530true assume !(1 == ~e_c~0); 105#L535true assume !(1 == ~e_wl~0); 98#L541true [2024-11-10 23:19:52,868 INFO L747 eck$LassoCheckResult]: Loop: 98#L541true assume true; 88#L541-1true assume !false;assume true;start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~nondet4#1, eval_#t~nondet5#1, eval_#t~nondet6#1, eval_#t~nondet7#1, eval_#t~nondet8#1, eval_~tmp~0#1, eval_~tmp___0~0#1, eval_~tmp___1~0#1, eval_~tmp___2~0#1, eval_~tmp___3~0#1;havoc eval_~tmp~0#1;havoc eval_~tmp___0~0#1;havoc eval_~tmp___1~0#1;havoc eval_~tmp___2~0#1;havoc eval_~tmp___3~0#1; 133#L294true assume !true; 60#L311true assume true; 108#L396true assume true;havoc eval_#t~nondet4#1, eval_#t~nondet5#1, eval_#t~nondet6#1, eval_#t~nondet7#1, eval_#t~nondet8#1, eval_~tmp~0#1, eval_~tmp___0~0#1, eval_~tmp___1~0#1, eval_~tmp___2~0#1, eval_~tmp___3~0#1;assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2; 73#L548true assume !(1 == ~c_req_up~0); 50#L559true start_simulation_~kernel_st~0#1 := 3; 27#L560true assume 0 == ~e_f~0;~e_f~0 := 1; 25#L565true assume 0 == ~e_g~0;~e_g~0 := 1; 44#L570true assume 0 == ~e_e~0;~e_e~0 := 1; 18#L575true assume 0 == ~e_c~0;~e_c~0 := 1; 4#L580true assume 0 == ~e_wl~0;~e_wl~0 := 1; 93#L585true assume 1 == ~wl_pc~0; 122#L586true assume 1 == ~e_wl~0;~wl_st~0 := 0; 137#L603true assume !(1 == ~c1_pc~0); 6#L612true assume !(1 == ~c2_pc~0); 71#L621true assume !(1 == ~wb_pc~0); 100#L630true assume 1 == ~e_c~0;~r_st~0 := 0; 29#L635true assume 1 == ~e_e~0;~e_e~0 := 2; 36#L640true assume 1 == ~e_f~0;~e_f~0 := 2; 152#L645true assume 1 == ~e_g~0;~e_g~0 := 2; 115#L650true assume 1 == ~e_c~0;~e_c~0 := 2; 37#L655true assume 1 == ~e_wl~0;~e_wl~0 := 2; 110#L660true assume 0 == ~wl_st~0; 98#L541true [2024-11-10 23:19:52,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:19:52,910 INFO L85 PathProgramCache]: Analyzing trace with hash -832931835, now seen corresponding path program 1 times [2024-11-10 23:19:52,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:19:52,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996987472] [2024-11-10 23:19:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:19:52,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:19:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:19:53,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:19:53,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:19:53,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996987472] [2024-11-10 23:19:53,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996987472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:19:53,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:19:53,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 23:19:53,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023116579] [2024-11-10 23:19:53,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:19:53,161 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-10 23:19:53,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:19:53,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1844548321, now seen corresponding path program 1 times [2024-11-10 23:19:53,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:19:53,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724930112] [2024-11-10 23:19:53,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:19:53,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:19:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:19:53,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:19:53,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:19:53,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724930112] [2024-11-10 23:19:53,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724930112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:19:53,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:19:53,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 23:19:53,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589356215] [2024-11-10 23:19:53,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:19:53,190 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 23:19:53,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:19:53,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 23:19:53,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 23:19:53,226 INFO L87 Difference]: Start difference. First operand has 151 states, 150 states have (on average 1.7133333333333334) internal successors, (257), 150 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:19:53,240 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor1(BasicAbstractInterpolantAutomaton.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:65) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.BuchiAutomatonCegarLoop.refineFinite(BuchiAutomatonCegarLoop.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.BuchiAutomatonCegarLoop.refineFinite(BuchiAutomatonCegarLoop.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.refineFiniteInternal(AbstractBuchiCegarLoop.java:469) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:398) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.runCegarLoops(BuchiAutomizerObserver.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:157) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:341) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-10 23:19:53,245 INFO L158 Benchmark]: Toolchain (without parser) took 1354.29ms. Allocated memory is still 251.7MB. Free memory was 179.0MB in the beginning and 197.2MB in the end (delta: -18.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:19:53,245 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:19:53,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.03ms. Allocated memory is still 251.7MB. Free memory was 179.0MB in the beginning and 161.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-10 23:19:53,247 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.58ms. Allocated memory is still 251.7MB. Free memory was 161.8MB in the beginning and 159.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:19:53,248 INFO L158 Benchmark]: Boogie Preprocessor took 33.87ms. Allocated memory is still 251.7MB. Free memory was 159.5MB in the beginning and 157.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:19:53,248 INFO L158 Benchmark]: IcfgBuilder took 475.00ms. Allocated memory is still 251.7MB. Free memory was 157.3MB in the beginning and 131.1MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-10 23:19:53,249 INFO L158 Benchmark]: BuchiAutomizer took 495.98ms. Allocated memory is still 251.7MB. Free memory was 131.1MB in the beginning and 197.2MB in the end (delta: -66.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:19:53,251 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.03ms. Allocated memory is still 251.7MB. Free memory was 179.0MB in the beginning and 161.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.58ms. Allocated memory is still 251.7MB. Free memory was 161.8MB in the beginning and 159.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.87ms. Allocated memory is still 251.7MB. Free memory was 159.5MB in the beginning and 157.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 475.00ms. Allocated memory is still 251.7MB. Free memory was 157.3MB in the beginning and 131.1MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 495.98ms. Allocated memory is still 251.7MB. Free memory was 131.1MB in the beginning and 197.2MB in the end (delta: -66.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor1(BasicAbstractInterpolantAutomaton.java:99) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-10 23:19:53,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null