./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.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_label43+token_ring.09.cil-2.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 5ab060d6e8ec67586454a3fd3cad3b6749e261734a1b9e4129e037a184a704d9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:26:58,495 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:26:58,562 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:26:58,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:26:58,570 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:26:58,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:26:58,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:26:58,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:26:58,597 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:26:58,597 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:26:58,598 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:26:58,598 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:26:58,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:26:58,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:26:58,599 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:26:58,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:26:58,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:26:58,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:26:58,602 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:26:58,602 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:26:58,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:26:58,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:26:58,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:26:58,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:26:58,604 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:26:58,604 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:26:58,605 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:26:58,605 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:26:58,605 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:26:58,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:26:58,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:26:58,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:26:58,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:26:58,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:26:58,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:26:58,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:26:58,608 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:26:58,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:26:58,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:26:58,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:26:58,609 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:26:58,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:26:58,610 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ab060d6e8ec67586454a3fd3cad3b6749e261734a1b9e4129e037a184a704d9 [2024-11-10 00:26:58,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:26:58,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:26:58,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:26:58,925 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:26:58,925 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:26:58,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.c [2024-11-10 00:27:00,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:27:01,155 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:27:01,156 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.c [2024-11-10 00:27:01,216 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f386d6b6/a2d44a074fe24e03833de5fc0100faa7/FLAG4664bb05e [2024-11-10 00:27:01,235 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f386d6b6/a2d44a074fe24e03833de5fc0100faa7 [2024-11-10 00:27:01,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:27:01,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:27:01,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:27:01,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:27:01,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:27:01,250 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:27:01" (1/1) ... [2024-11-10 00:27:01,251 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40eb833a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:01, skipping insertion in model container [2024-11-10 00:27:01,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:27:01" (1/1) ... [2024-11-10 00:27:01,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:27:03,348 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_label43+token_ring.09.cil-2.c[381679,381692] [2024-11-10 00:27:03,381 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_label43+token_ring.09.cil-2.c[383339,383352] [2024-11-10 00:27:03,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:27:03,717 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:27:04,578 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_label43+token_ring.09.cil-2.c[381679,381692] [2024-11-10 00:27:04,583 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_label43+token_ring.09.cil-2.c[383339,383352] [2024-11-10 00:27:04,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:27:04,678 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:27:04,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04 WrapperNode [2024-11-10 00:27:04,679 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:27:04,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:27:04,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:27:04,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:27:04,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (1/1) ... [2024-11-10 00:27:04,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (1/1) ... [2024-11-10 00:27:05,195 INFO L138 Inliner]: procedures = 62, calls = 69, calls flagged for inlining = 39, calls inlined = 39, statements flattened = 13046 [2024-11-10 00:27:05,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:27:05,197 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:27:05,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:27:05,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:27:05,208 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (1/1) ... [2024-11-10 00:27:05,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (1/1) ... [2024-11-10 00:27:05,287 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (1/1) ... [2024-11-10 00:27:05,545 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 00:27:05,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (1/1) ... [2024-11-10 00:27:05,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (1/1) ... [2024-11-10 00:27:05,778 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (1/1) ... [2024-11-10 00:27:05,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (1/1) ... [2024-11-10 00:27:05,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (1/1) ... [2024-11-10 00:27:05,857 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (1/1) ... [2024-11-10 00:27:05,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:27:05,918 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:27:05,918 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:27:05,919 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:27:05,920 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (1/1) ... [2024-11-10 00:27:05,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:27:05,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:27:05,957 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 00:27:05,959 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 00:27:06,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:27:06,002 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:27:06,002 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:27:06,002 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:27:06,002 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:27:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:27:06,003 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:27:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-10 00:27:06,003 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-10 00:27:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:27:06,003 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:27:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:27:06,004 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:27:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:27:06,004 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:27:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:27:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:27:06,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:27:06,129 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:27:06,131 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:27:16,115 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:27:16,115 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:27:16,116 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:27:16,116 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:27:16,116 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:27:16,116 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:27:16,116 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:27:16,806 INFO L? ?]: Removed 4807 outVars from TransFormulas that were not future-live. [2024-11-10 00:27:16,807 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:27:16,888 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:27:16,889 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:27:16,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:27:16 BoogieIcfgContainer [2024-11-10 00:27:16,889 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:27:16,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:27:16,893 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:27:16,896 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:27:16,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:27:01" (1/3) ... [2024-11-10 00:27:16,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482ba143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:27:16, skipping insertion in model container [2024-11-10 00:27:16,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:04" (2/3) ... [2024-11-10 00:27:16,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482ba143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:27:16, skipping insertion in model container [2024-11-10 00:27:16,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:27:16" (3/3) ... [2024-11-10 00:27:16,901 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.09.cil-2.c [2024-11-10 00:27:16,919 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:27:16,919 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:27:17,092 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:27:17,100 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;@14bf990b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:27:17,100 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:27:17,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 2557 states, 2512 states have (on average 2.4446656050955413) internal successors, (6141), 2527 states have internal predecessors, (6141), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 00:27:17,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-10 00:27:17,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:27:17,142 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] [2024-11-10 00:27:17,143 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:27:17,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:27:17,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1885816901, now seen corresponding path program 1 times [2024-11-10 00:27:17,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:27:17,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268201228] [2024-11-10 00:27:17,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:27:17,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:27:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:17,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 00:27:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:17,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-10 00:27:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:17,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 00:27:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:17,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 00:27:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:17,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-10 00:27:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:17,990 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 00:27:17,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:27:17,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268201228] [2024-11-10 00:27:17,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268201228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:27:17,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:27:17,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:27:17,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087182706] [2024-11-10 00:27:17,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:27:18,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 00:27:18,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:27:18,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 00:27:18,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 00:27:18,041 INFO L87 Difference]: Start difference. First operand has 2557 states, 2512 states have (on average 2.4446656050955413) internal successors, (6141), 2527 states have internal predecessors, (6141), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 4 states have internal predecessors, (138), 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 00:27:18,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:27:18,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:27:18,596 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 231 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:27:18,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 506 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:27:18,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:27:18,602 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 00:27:18,607 INFO L158 Benchmark]: Toolchain (without parser) took 17365.47ms. Allocated memory was 176.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 119.1MB in the beginning and 717.2MB in the end (delta: -598.2MB). Peak memory consumption was 476.4MB. Max. memory is 16.1GB. [2024-11-10 00:27:18,608 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 176.2MB. Free memory was 143.3MB in the beginning and 143.2MB in the end (delta: 16.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:27:18,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3436.16ms. Allocated memory was 176.2MB in the beginning and 251.7MB in the end (delta: 75.5MB). Free memory was 119.1MB in the beginning and 114.3MB in the end (delta: 4.8MB). Peak memory consumption was 127.2MB. Max. memory is 16.1GB. [2024-11-10 00:27:18,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 515.98ms. Allocated memory was 251.7MB in the beginning and 396.4MB in the end (delta: 144.7MB). Free memory was 114.3MB in the beginning and 238.0MB in the end (delta: -123.7MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2024-11-10 00:27:18,611 INFO L158 Benchmark]: Boogie Preprocessor took 720.53ms. Allocated memory is still 396.4MB. Free memory was 238.0MB in the beginning and 209.9MB in the end (delta: 28.1MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2024-11-10 00:27:18,611 INFO L158 Benchmark]: IcfgBuilder took 10971.73ms. Allocated memory was 396.4MB in the beginning and 1.2GB in the end (delta: 853.5MB). Free memory was 208.9MB in the beginning and 876.6MB in the end (delta: -667.7MB). Peak memory consumption was 570.6MB. Max. memory is 16.1GB. [2024-11-10 00:27:18,612 INFO L158 Benchmark]: TraceAbstraction took 1714.32ms. Allocated memory is still 1.2GB. Free memory was 875.6MB in the beginning and 717.2MB in the end (delta: 158.3MB). Peak memory consumption was 159.4MB. Max. memory is 16.1GB. [2024-11-10 00:27:18,615 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 176.2MB. Free memory was 143.3MB in the beginning and 143.2MB in the end (delta: 16.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3436.16ms. Allocated memory was 176.2MB in the beginning and 251.7MB in the end (delta: 75.5MB). Free memory was 119.1MB in the beginning and 114.3MB in the end (delta: 4.8MB). Peak memory consumption was 127.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 515.98ms. Allocated memory was 251.7MB in the beginning and 396.4MB in the end (delta: 144.7MB). Free memory was 114.3MB in the beginning and 238.0MB in the end (delta: -123.7MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 720.53ms. Allocated memory is still 396.4MB. Free memory was 238.0MB in the beginning and 209.9MB in the end (delta: 28.1MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. * IcfgBuilder took 10971.73ms. Allocated memory was 396.4MB in the beginning and 1.2GB in the end (delta: 853.5MB). Free memory was 208.9MB in the beginning and 876.6MB in the end (delta: -667.7MB). Peak memory consumption was 570.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1714.32ms. Allocated memory is still 1.2GB. Free memory was 875.6MB in the beginning and 717.2MB in the end (delta: 158.3MB). Peak memory consumption was 159.4MB. 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 00:27:18,651 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_label43+token_ring.09.cil-2.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 5ab060d6e8ec67586454a3fd3cad3b6749e261734a1b9e4129e037a184a704d9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:27:21,137 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:27:21,218 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-10 00:27:21,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:27:21,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:27:21,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:27:21,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:27:21,246 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:27:21,246 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:27:21,247 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:27:21,247 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:27:21,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:27:21,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:27:21,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:27:21,251 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:27:21,251 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:27:21,251 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:27:21,252 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:27:21,252 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:27:21,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:27:21,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:27:21,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:27:21,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:27:21,257 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 00:27:21,257 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 00:27:21,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:27:21,258 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 00:27:21,258 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:27:21,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:27:21,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:27:21,259 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:27:21,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:27:21,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:27:21,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:27:21,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:27:21,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:27:21,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:27:21,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:27:21,264 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 00:27:21,264 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 00:27:21,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:27:21,265 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:27:21,265 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:27:21,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:27:21,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ab060d6e8ec67586454a3fd3cad3b6749e261734a1b9e4129e037a184a704d9 [2024-11-10 00:27:21,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:27:21,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:27:21,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:27:21,631 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:27:21,632 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:27:21,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.c [2024-11-10 00:27:23,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:27:24,027 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:27:24,028 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.09.cil-2.c [2024-11-10 00:27:24,092 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1248b56/78d3f93672994422bc78d8e38e6b7f2c/FLAG62a1f1e70 [2024-11-10 00:27:24,390 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a1248b56/78d3f93672994422bc78d8e38e6b7f2c [2024-11-10 00:27:24,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:27:24,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:27:24,399 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:27:24,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:27:24,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:27:24,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:27:24" (1/1) ... [2024-11-10 00:27:24,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed5d6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:24, skipping insertion in model container [2024-11-10 00:27:24,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:27:24" (1/1) ... [2024-11-10 00:27:24,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:27:26,527 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_label43+token_ring.09.cil-2.c[381679,381692] [2024-11-10 00:27:26,595 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_label43+token_ring.09.cil-2.c[383339,383352] [2024-11-10 00:27:27,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:27:27,072 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:27:27,875 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_label43+token_ring.09.cil-2.c[381679,381692] [2024-11-10 00:27:27,879 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_label43+token_ring.09.cil-2.c[383339,383352] [2024-11-10 00:27:27,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:27:27,984 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:27:27,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27 WrapperNode [2024-11-10 00:27:27,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:27:27,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:27:27,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:27:27,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:27:27,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (1/1) ... [2024-11-10 00:27:28,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (1/1) ... [2024-11-10 00:27:28,722 INFO L138 Inliner]: procedures = 63, calls = 69, calls flagged for inlining = 39, calls inlined = 39, statements flattened = 13009 [2024-11-10 00:27:28,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:27:28,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:27:28,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:27:28,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:27:28,736 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (1/1) ... [2024-11-10 00:27:28,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (1/1) ... [2024-11-10 00:27:28,801 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (1/1) ... [2024-11-10 00:27:29,001 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 00:27:29,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (1/1) ... [2024-11-10 00:27:29,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (1/1) ... [2024-11-10 00:27:29,181 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (1/1) ... [2024-11-10 00:27:29,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (1/1) ... [2024-11-10 00:27:29,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (1/1) ... [2024-11-10 00:27:29,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (1/1) ... [2024-11-10 00:27:29,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:27:29,470 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:27:29,470 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:27:29,470 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:27:29,471 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (1/1) ... [2024-11-10 00:27:29,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:27:29,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:27:29,542 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 00:27:29,545 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 00:27:29,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:27:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:27:29,595 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:27:29,595 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:27:29,596 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:27:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:27:29,596 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:27:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 00:27:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-10 00:27:29,596 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-10 00:27:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:27:29,596 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:27:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:27:29,596 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:27:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:27:29,596 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:27:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:27:29,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:27:29,860 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:27:29,867 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:27:42,598 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:27:42,599 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:27:42,599 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:27:42,599 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:27:42,600 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:27:42,600 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:27:42,600 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:27:43,880 INFO L? ?]: Removed 4807 outVars from TransFormulas that were not future-live. [2024-11-10 00:27:43,881 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:27:43,968 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:27:43,968 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:27:43,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:27:43 BoogieIcfgContainer [2024-11-10 00:27:43,969 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:27:43,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:27:43,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:27:43,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:27:43,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:27:24" (1/3) ... [2024-11-10 00:27:43,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313e9e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:27:43, skipping insertion in model container [2024-11-10 00:27:43,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:27" (2/3) ... [2024-11-10 00:27:43,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313e9e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:27:43, skipping insertion in model container [2024-11-10 00:27:43,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:27:43" (3/3) ... [2024-11-10 00:27:43,981 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.09.cil-2.c [2024-11-10 00:27:44,003 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:27:44,003 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:27:44,140 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:27:44,148 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;@34590972, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:27:44,148 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:27:44,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 2557 states, 2512 states have (on average 2.4446656050955413) internal successors, (6141), 2527 states have internal predecessors, (6141), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 00:27:44,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-10 00:27:44,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:27:44,192 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] [2024-11-10 00:27:44,193 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:27:44,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:27:44,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1885816901, now seen corresponding path program 1 times [2024-11-10 00:27:44,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 00:27:44,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1547979006] [2024-11-10 00:27:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:27:44,218 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 00:27:44,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 00:27:44,222 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 00:27:44,223 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 00:27:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:44,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 00:27:44,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:27:44,717 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 00:27:44,718 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 00:27:44,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 00:27:44,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1547979006] [2024-11-10 00:27:44,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1547979006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:27:44,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:27:44,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:27:44,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011509734] [2024-11-10 00:27:44,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:27:44,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:27:44,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 00:27:44,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:27:44,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:27:44,768 INFO L87 Difference]: Start difference. First operand has 2557 states, 2512 states have (on average 2.4446656050955413) internal successors, (6141), 2527 states have internal predecessors, (6141), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 3 states have internal predecessors, (138), 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 00:27:44,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 00:27:44,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 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 00:27:44,886 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 204 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:27:44,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 473 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:27:44,899 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 00:27:45,093 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 00:27:45,095 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 00:27:45,102 INFO L158 Benchmark]: Toolchain (without parser) took 20705.66ms. Allocated memory was 86.0MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 55.4MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 399.8MB. Max. memory is 16.1GB. [2024-11-10 00:27:45,102 INFO L158 Benchmark]: CDTParser took 2.18ms. Allocated memory is still 46.1MB. Free memory is still 25.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:27:45,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3586.54ms. Allocated memory was 86.0MB in the beginning and 251.7MB in the end (delta: 165.7MB). Free memory was 55.1MB in the beginning and 152.4MB in the end (delta: -97.3MB). Peak memory consumption was 102.9MB. Max. memory is 16.1GB. [2024-11-10 00:27:45,103 INFO L158 Benchmark]: Boogie Procedure Inliner took 737.52ms. Allocated memory is still 251.7MB. Free memory was 152.4MB in the beginning and 107.4MB in the end (delta: 45.0MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. [2024-11-10 00:27:45,103 INFO L158 Benchmark]: Boogie Preprocessor took 744.00ms. Allocated memory is still 251.7MB. Free memory was 107.4MB in the beginning and 90.9MB in the end (delta: 16.6MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2024-11-10 00:27:45,104 INFO L158 Benchmark]: IcfgBuilder took 14499.65ms. Allocated memory was 251.7MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 90.9MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 727.5MB. Max. memory is 16.1GB. [2024-11-10 00:27:45,104 INFO L158 Benchmark]: TraceAbstraction took 1128.02ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.2GB in the end (delta: 75.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2024-11-10 00:27:45,110 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.18ms. Allocated memory is still 46.1MB. Free memory is still 25.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3586.54ms. Allocated memory was 86.0MB in the beginning and 251.7MB in the end (delta: 165.7MB). Free memory was 55.1MB in the beginning and 152.4MB in the end (delta: -97.3MB). Peak memory consumption was 102.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 737.52ms. Allocated memory is still 251.7MB. Free memory was 152.4MB in the beginning and 107.4MB in the end (delta: 45.0MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 744.00ms. Allocated memory is still 251.7MB. Free memory was 107.4MB in the beginning and 90.9MB in the end (delta: 16.6MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. * IcfgBuilder took 14499.65ms. Allocated memory was 251.7MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 90.9MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 727.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1128.02ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.2GB in the end (delta: 75.5MB). Peak memory consumption was 75.5MB. 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 00:27:45,142 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