./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8467ffbb1ccc6ad3e7cda0bad7b8fded9577e94940df507be3d09419f9a5a0e1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:25:45,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:25:45,796 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:25:45,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:25:45,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:25:45,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:25:45,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:25:45,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:25:45,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:25:45,835 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:25:45,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:25:45,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:25:45,837 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:25:45,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:25:45,838 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:25:45,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:25:45,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:25:45,839 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:25:45,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:25:45,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:25:45,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:25:45,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:25:45,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:25:45,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:25:45,846 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:25:45,846 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:25:45,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:25:45,847 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:25:45,847 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:25:45,847 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:25:45,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:25:45,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:25:45,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:25:45,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:25:45,849 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:25:45,849 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:25:45,850 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:25:45,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:25:45,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:25:45,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:25:45,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:25:45,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:25:45,852 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8467ffbb1ccc6ad3e7cda0bad7b8fded9577e94940df507be3d09419f9a5a0e1 [2024-11-10 00:25:46,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:25:46,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:25:46,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:25:46,166 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:25:46,166 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:25:46,168 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c [2024-11-10 00:25:47,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:25:48,386 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:25:48,388 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c [2024-11-10 00:25:48,438 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ec48ce0/9ec29fa1b8094ddc87bf6bd19de34447/FLAG87223706e [2024-11-10 00:25:48,458 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ec48ce0/9ec29fa1b8094ddc87bf6bd19de34447 [2024-11-10 00:25:48,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:25:48,465 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:25:48,466 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:25:48,466 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:25:48,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:25:48,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:25:48" (1/1) ... [2024-11-10 00:25:48,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@146fd8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:48, skipping insertion in model container [2024-11-10 00:25:48,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:25:48" (1/1) ... [2024-11-10 00:25:48,671 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:25:50,220 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c[378560,378573] [2024-11-10 00:25:50,275 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c[383339,383352] [2024-11-10 00:25:50,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:25:50,705 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:25:51,463 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c[378560,378573] [2024-11-10 00:25:51,470 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c[383339,383352] [2024-11-10 00:25:51,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:25:51,572 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:25:51,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51 WrapperNode [2024-11-10 00:25:51,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:25:51,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:25:51,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:25:51,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:25:51,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (1/1) ... [2024-11-10 00:25:51,722 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (1/1) ... [2024-11-10 00:25:52,238 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13282 [2024-11-10 00:25:52,239 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:25:52,240 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:25:52,240 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:25:52,240 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:25:52,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (1/1) ... [2024-11-10 00:25:52,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (1/1) ... [2024-11-10 00:25:52,328 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (1/1) ... [2024-11-10 00:25:52,431 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 00:25:52,432 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (1/1) ... [2024-11-10 00:25:52,432 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (1/1) ... [2024-11-10 00:25:52,603 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (1/1) ... [2024-11-10 00:25:52,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (1/1) ... [2024-11-10 00:25:52,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (1/1) ... [2024-11-10 00:25:52,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (1/1) ... [2024-11-10 00:25:52,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:25:52,762 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:25:52,762 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:25:52,762 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:25:52,764 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (1/1) ... [2024-11-10 00:25:52,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:25:52,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:25:52,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 00:25:52,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 00:25:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:25:52,866 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:25:52,866 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:25:52,866 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:25:52,866 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:25:52,866 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:25:52,866 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:25:52,866 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-10 00:25:52,866 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-10 00:25:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:25:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:25:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:25:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:25:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:25:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:25:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:25:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:25:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:25:53,035 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:25:53,037 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:26:03,777 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:26:03,778 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:26:03,778 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:26:03,780 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:26:03,780 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:26:03,780 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:26:03,780 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:26:04,621 INFO L? ?]: Removed 4831 outVars from TransFormulas that were not future-live. [2024-11-10 00:26:04,621 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:26:04,696 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:26:04,697 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:26:04,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:26:04 BoogieIcfgContainer [2024-11-10 00:26:04,697 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:26:04,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:26:04,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:26:04,704 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:26:04,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:25:48" (1/3) ... [2024-11-10 00:26:04,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a42f674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:26:04, skipping insertion in model container [2024-11-10 00:26:04,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:25:51" (2/3) ... [2024-11-10 00:26:04,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a42f674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:26:04, skipping insertion in model container [2024-11-10 00:26:04,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:26:04" (3/3) ... [2024-11-10 00:26:04,709 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.13.cil-1.c [2024-11-10 00:26:04,730 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:26:04,730 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:26:04,878 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:26:04,887 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19361e76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:26:04,887 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:26:04,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 2677 states, 2624 states have (on average 2.410442073170732) internal successors, (6325), 2643 states have internal predecessors, (6325), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-10 00:26:04,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-10 00:26:04,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:26:04,930 INFO L215 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:26:04,930 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:26:04,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:26:04,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1984911031, now seen corresponding path program 1 times [2024-11-10 00:26:04,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:26:04,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601204082] [2024-11-10 00:26:04,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:26:04,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:26:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:26:05,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 00:26:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:26:05,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-10 00:26:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:26:05,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 00:26:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:26:06,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-10 00:26:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:26:06,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-10 00:26:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:26:06,028 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 00:26:06,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:26:06,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601204082] [2024-11-10 00:26:06,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601204082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:26:06,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:26:06,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:26:06,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041136554] [2024-11-10 00:26:06,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:26:06,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 00:26:06,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:26:06,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 00:26:06,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 00:26:06,084 INFO L87 Difference]: Start difference. First operand has 2677 states, 2624 states have (on average 2.410442073170732) internal successors, (6325), 2643 states have internal predecessors, (6325), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 4 states have internal predecessors, (182), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 00:26:06,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:26:06,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:26:06,914 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 308 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 00:26:06,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 638 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 00:26:06,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:26:06,920 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction 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.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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 00:26:06,926 INFO L158 Benchmark]: Toolchain (without parser) took 18462.65ms. Allocated memory was 220.2MB in the beginning and 966.8MB in the end (delta: 746.6MB). Free memory was 176.7MB in the beginning and 479.9MB in the end (delta: -303.2MB). Peak memory consumption was 443.4MB. Max. memory is 16.1GB. [2024-11-10 00:26:06,926 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 101.5MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:26:06,927 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3107.21ms. Allocated memory is still 220.2MB. Free memory was 176.7MB in the beginning and 89.1MB in the end (delta: 87.6MB). Peak memory consumption was 179.9MB. Max. memory is 16.1GB. [2024-11-10 00:26:06,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 665.42ms. Allocated memory was 220.2MB in the beginning and 352.3MB in the end (delta: 132.1MB). Free memory was 89.1MB in the beginning and 207.6MB in the end (delta: -118.5MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2024-11-10 00:26:06,930 INFO L158 Benchmark]: Boogie Preprocessor took 520.67ms. Allocated memory is still 352.3MB. Free memory was 207.6MB in the beginning and 145.8MB in the end (delta: 61.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2024-11-10 00:26:06,931 INFO L158 Benchmark]: IcfgBuilder took 11935.94ms. Allocated memory was 352.3MB in the beginning and 966.8MB in the end (delta: 614.5MB). Free memory was 145.8MB in the beginning and 706.4MB in the end (delta: -560.6MB). Peak memory consumption was 514.9MB. Max. memory is 16.1GB. [2024-11-10 00:26:06,933 INFO L158 Benchmark]: TraceAbstraction took 2225.79ms. Allocated memory is still 966.8MB. Free memory was 705.3MB in the beginning and 479.9MB in the end (delta: 225.4MB). Peak memory consumption was 224.4MB. Max. memory is 16.1GB. [2024-11-10 00:26:06,936 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 101.5MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3107.21ms. Allocated memory is still 220.2MB. Free memory was 176.7MB in the beginning and 89.1MB in the end (delta: 87.6MB). Peak memory consumption was 179.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 665.42ms. Allocated memory was 220.2MB in the beginning and 352.3MB in the end (delta: 132.1MB). Free memory was 89.1MB in the beginning and 207.6MB in the end (delta: -118.5MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 520.67ms. Allocated memory is still 352.3MB. Free memory was 207.6MB in the beginning and 145.8MB in the end (delta: 61.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * IcfgBuilder took 11935.94ms. Allocated memory was 352.3MB in the beginning and 966.8MB in the end (delta: 614.5MB). Free memory was 145.8MB in the beginning and 706.4MB in the end (delta: -560.6MB). Peak memory consumption was 514.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2225.79ms. Allocated memory is still 966.8MB. Free memory was 705.3MB in the beginning and 479.9MB in the end (delta: 225.4MB). Peak memory consumption was 224.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 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 00:26:06,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8467ffbb1ccc6ad3e7cda0bad7b8fded9577e94940df507be3d09419f9a5a0e1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:26:09,555 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:26:09,643 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-10 00:26:09,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:26:09,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:26:09,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:26:09,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:26:09,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:26:09,686 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:26:09,686 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:26:09,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:26:09,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:26:09,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:26:09,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:26:09,694 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:26:09,695 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:26:09,695 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:26:09,695 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:26:09,696 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:26:09,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:26:09,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:26:09,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:26:09,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:26:09,699 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 00:26:09,700 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 00:26:09,702 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:26:09,702 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 00:26:09,703 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:26:09,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:26:09,703 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:26:09,704 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:26:09,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:26:09,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:26:09,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:26:09,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:26:09,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:26:09,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:26:09,707 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:26:09,708 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 00:26:09,708 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 00:26:09,708 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:26:09,709 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:26:09,709 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:26:09,709 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:26:09,709 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8467ffbb1ccc6ad3e7cda0bad7b8fded9577e94940df507be3d09419f9a5a0e1 [2024-11-10 00:26:10,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:26:10,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:26:10,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:26:10,106 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:26:10,107 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:26:10,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c [2024-11-10 00:26:11,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:26:12,371 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:26:12,371 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c [2024-11-10 00:26:12,427 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4743b52b8/c0aa7a3ec0e9458287b991282c7acba9/FLAGb3f0cfba5 [2024-11-10 00:26:12,448 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4743b52b8/c0aa7a3ec0e9458287b991282c7acba9 [2024-11-10 00:26:12,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:26:12,455 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:26:12,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:26:12,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:26:12,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:26:12,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:26:12" (1/1) ... [2024-11-10 00:26:12,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e63ab89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:12, skipping insertion in model container [2024-11-10 00:26:12,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:26:12" (1/1) ... [2024-11-10 00:26:12,636 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:26:14,560 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c[378560,378573] [2024-11-10 00:26:14,602 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c[383339,383352] [2024-11-10 00:26:15,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:26:15,085 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:26:16,008 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c[378560,378573] [2024-11-10 00:26:16,016 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.13.cil-1.c[383339,383352] [2024-11-10 00:26:16,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:26:16,123 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:26:16,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16 WrapperNode [2024-11-10 00:26:16,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:26:16,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:26:16,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:26:16,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:26:16,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (1/1) ... [2024-11-10 00:26:16,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (1/1) ... [2024-11-10 00:26:16,757 INFO L138 Inliner]: procedures = 71, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13237 [2024-11-10 00:26:16,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:26:16,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:26:16,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:26:16,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:26:16,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (1/1) ... [2024-11-10 00:26:16,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (1/1) ... [2024-11-10 00:26:17,018 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (1/1) ... [2024-11-10 00:26:17,131 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 00:26:17,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (1/1) ... [2024-11-10 00:26:17,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (1/1) ... [2024-11-10 00:26:17,423 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (1/1) ... [2024-11-10 00:26:17,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (1/1) ... [2024-11-10 00:26:17,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (1/1) ... [2024-11-10 00:26:17,495 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (1/1) ... [2024-11-10 00:26:17,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:26:17,572 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:26:17,572 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:26:17,572 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:26:17,573 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (1/1) ... [2024-11-10 00:26:17,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:26:17,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:26:17,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 00:26:17,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 00:26:17,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:26:17,660 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:26:17,660 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:26:17,660 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:26:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:26:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:26:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:26:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 00:26:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-10 00:26:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-10 00:26:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:26:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:26:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:26:17,661 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:26:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:26:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:26:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:26:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:26:17,808 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:26:17,811 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:26:31,426 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:26:31,428 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:26:31,428 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:26:31,428 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:26:31,428 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:26:31,429 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:26:31,429 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:26:32,297 INFO L? ?]: Removed 4831 outVars from TransFormulas that were not future-live. [2024-11-10 00:26:32,297 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:26:32,371 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:26:32,371 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:26:32,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:26:32 BoogieIcfgContainer [2024-11-10 00:26:32,372 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:26:32,374 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:26:32,375 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:26:32,379 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:26:32,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:26:12" (1/3) ... [2024-11-10 00:26:32,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c874bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:26:32, skipping insertion in model container [2024-11-10 00:26:32,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:16" (2/3) ... [2024-11-10 00:26:32,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c874bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:26:32, skipping insertion in model container [2024-11-10 00:26:32,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:26:32" (3/3) ... [2024-11-10 00:26:32,383 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.13.cil-1.c [2024-11-10 00:26:32,402 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:26:32,403 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:26:32,553 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:26:32,560 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5535ec88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:26:32,561 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:26:32,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 2677 states, 2624 states have (on average 2.410442073170732) internal successors, (6325), 2643 states have internal predecessors, (6325), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-10 00:26:32,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-10 00:26:32,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:26:32,615 INFO L215 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:26:32,616 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:26:32,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:26:32,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1984911031, now seen corresponding path program 1 times [2024-11-10 00:26:32,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 00:26:32,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860018089] [2024-11-10 00:26:32,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:26:32,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 00:26:32,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 00:26:32,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 00:26:32,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-10 00:26:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:26:33,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 00:26:33,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:26:33,295 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 00:26:33,299 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 00:26:33,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 00:26:33,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860018089] [2024-11-10 00:26:33,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [860018089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:26:33,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:26:33,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:26:33,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457238901] [2024-11-10 00:26:33,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:26:33,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:26:33,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 00:26:33,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:26:33,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:26:33,354 INFO L87 Difference]: Start difference. First operand has 2677 states, 2624 states have (on average 2.410442073170732) internal successors, (6325), 2643 states have internal predecessors, (6325), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 3 states have internal predecessors, (182), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 00:26:33,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 00:26:33,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 00:26:33,486 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 271 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:26:33,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 610 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:26:33,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-10 00:26:33,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 00:26:33,690 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction 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.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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 00:26:33,694 INFO L158 Benchmark]: Toolchain (without parser) took 21239.75ms. Allocated memory was 69.2MB in the beginning and 1.5GB in the end (delta: 1.5GB). Free memory was 30.3MB in the beginning and 521.1MB in the end (delta: -490.9MB). Peak memory consumption was 988.0MB. Max. memory is 16.1GB. [2024-11-10 00:26:33,694 INFO L158 Benchmark]: CDTParser took 1.15ms. Allocated memory is still 39.8MB. Free memory was 18.7MB in the beginning and 18.6MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:26:33,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3668.80ms. Allocated memory was 69.2MB in the beginning and 182.5MB in the end (delta: 113.2MB). Free memory was 30.0MB in the beginning and 71.7MB in the end (delta: -41.7MB). Peak memory consumption was 92.5MB. Max. memory is 16.1GB. [2024-11-10 00:26:33,697 INFO L158 Benchmark]: Boogie Procedure Inliner took 632.57ms. Allocated memory was 182.5MB in the beginning and 325.1MB in the end (delta: 142.6MB). Free memory was 71.7MB in the beginning and 180.4MB in the end (delta: -108.7MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2024-11-10 00:26:33,697 INFO L158 Benchmark]: Boogie Preprocessor took 812.18ms. Allocated memory is still 325.1MB. Free memory was 180.4MB in the beginning and 175.1MB in the end (delta: 5.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-10 00:26:33,699 INFO L158 Benchmark]: IcfgBuilder took 14800.30ms. Allocated memory was 325.1MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 175.1MB in the beginning and 607.1MB in the end (delta: -432.0MB). Peak memory consumption was 886.0MB. Max. memory is 16.1GB. [2024-11-10 00:26:33,701 INFO L158 Benchmark]: TraceAbstraction took 1318.72ms. Allocated memory is still 1.5GB. Free memory was 606.1MB in the beginning and 521.1MB in the end (delta: 84.9MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. [2024-11-10 00:26:33,704 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15ms. Allocated memory is still 39.8MB. Free memory was 18.7MB in the beginning and 18.6MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3668.80ms. Allocated memory was 69.2MB in the beginning and 182.5MB in the end (delta: 113.2MB). Free memory was 30.0MB in the beginning and 71.7MB in the end (delta: -41.7MB). Peak memory consumption was 92.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 632.57ms. Allocated memory was 182.5MB in the beginning and 325.1MB in the end (delta: 142.6MB). Free memory was 71.7MB in the beginning and 180.4MB in the end (delta: -108.7MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 812.18ms. Allocated memory is still 325.1MB. Free memory was 180.4MB in the beginning and 175.1MB in the end (delta: 5.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * IcfgBuilder took 14800.30ms. Allocated memory was 325.1MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 175.1MB in the beginning and 607.1MB in the end (delta: -432.0MB). Peak memory consumption was 886.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1318.72ms. Allocated memory is still 1.5GB. Free memory was 606.1MB in the beginning and 521.1MB in the end (delta: 84.9MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 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 00:26:33,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null