./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.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_label43+token_ring.08.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 db9df7d135a21d792e3a2ca832f85f7c7fc22de6655b2cb0ba03be5cd467b7e3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:26:50,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:26:50,737 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:26:50,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:26:50,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:26:50,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:26:50,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:26:50,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:26:50,779 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:26:50,780 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:26:50,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:26:50,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:26:50,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:26:50,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:26:50,783 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:26:50,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:26:50,785 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:26:50,785 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:26:50,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:26:50,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:26:50,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:26:50,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:26:50,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:26:50,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:26:50,790 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:26:50,790 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:26:50,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:26:50,791 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:26:50,791 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:26:50,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:26:50,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:26:50,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:26:50,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:26:50,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:26:50,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:26:50,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:26:50,794 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:26:50,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:26:50,796 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:26:50,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:26:50,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:26:50,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:26:50,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9df7d135a21d792e3a2ca832f85f7c7fc22de6655b2cb0ba03be5cd467b7e3 [2024-11-10 00:26:51,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:26:51,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:26:51,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:26:51,094 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:26:51,094 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:26:51,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c [2024-11-10 00:26:52,558 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:26:53,217 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:26:53,218 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c [2024-11-10 00:26:53,266 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72c9d32af/149546321af645449fa1cbb60d635dde/FLAG511f36a6f [2024-11-10 00:26:53,287 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72c9d32af/149546321af645449fa1cbb60d635dde [2024-11-10 00:26:53,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:26:53,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:26:53,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:26:53,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:26:53,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:26:53,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:26:53" (1/1) ... [2024-11-10 00:26:53,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24870928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:53, skipping insertion in model container [2024-11-10 00:26:53,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:26:53" (1/1) ... [2024-11-10 00:26:53,466 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:26:55,187 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.08.cil-1.c[381679,381692] [2024-11-10 00:26:55,222 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.08.cil-1.c[383339,383352] [2024-11-10 00:26:55,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:26:55,599 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:26:56,361 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.08.cil-1.c[381679,381692] [2024-11-10 00:26:56,366 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.08.cil-1.c[383339,383352] [2024-11-10 00:26:56,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:26:56,454 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:26:56,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56 WrapperNode [2024-11-10 00:26:56,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:26:56,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:26:56,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:26:56,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:26:56,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (1/1) ... [2024-11-10 00:26:56,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (1/1) ... [2024-11-10 00:26:57,097 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12981 [2024-11-10 00:26:57,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:26:57,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:26:57,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:26:57,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:26:57,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (1/1) ... [2024-11-10 00:26:57,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (1/1) ... [2024-11-10 00:26:57,190 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (1/1) ... [2024-11-10 00:26:57,296 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 00:26:57,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (1/1) ... [2024-11-10 00:26:57,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (1/1) ... [2024-11-10 00:26:57,449 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (1/1) ... [2024-11-10 00:26:57,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (1/1) ... [2024-11-10 00:26:57,506 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (1/1) ... [2024-11-10 00:26:57,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (1/1) ... [2024-11-10 00:26:57,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:26:57,731 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:26:57,731 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:26:57,732 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:26:57,734 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (1/1) ... [2024-11-10 00:26:57,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:26:57,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:26:57,770 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 00:26:57,776 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 00:26:57,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:26:57,829 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:26:57,829 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:26:57,829 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:26:57,830 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:26:57,830 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:26:57,831 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:26:57,831 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:26:57,831 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:26:57,831 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:26:57,831 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:26:57,831 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:26:57,831 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:26:57,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:26:57,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:26:57,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:26:58,034 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:26:58,036 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:27:08,408 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:27:08,409 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:27:08,410 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:27:08,410 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:27:08,411 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:27:08,412 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:27:08,412 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:27:09,252 INFO L? ?]: Removed 4797 outVars from TransFormulas that were not future-live. [2024-11-10 00:27:09,253 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:27:09,320 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:27:09,320 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:27:09,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:27:09 BoogieIcfgContainer [2024-11-10 00:27:09,321 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:27:09,323 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:27:09,323 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:27:09,326 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:27:09,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:26:53" (1/3) ... [2024-11-10 00:27:09,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b69f64a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:27:09, skipping insertion in model container [2024-11-10 00:27:09,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:26:56" (2/3) ... [2024-11-10 00:27:09,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b69f64a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:27:09, skipping insertion in model container [2024-11-10 00:27:09,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:27:09" (3/3) ... [2024-11-10 00:27:09,329 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.08.cil-1.c [2024-11-10 00:27:09,346 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:27:09,347 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:27:09,485 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:27:09,494 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;@6afafb9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:27:09,495 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:27:09,514 INFO L276 IsEmpty]: Start isEmpty. Operand has 2519 states, 2479 states have (on average 2.45461879790238) internal successors, (6085), 2491 states have internal predecessors, (6085), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-10 00:27:09,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-10 00:27:09,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:27:09,542 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] [2024-11-10 00:27:09,543 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:27:09,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:27:09,549 INFO L85 PathProgramCache]: Analyzing trace with hash 533717818, now seen corresponding path program 1 times [2024-11-10 00:27:09,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:27:09,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601210014] [2024-11-10 00:27:09,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:27:09,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:27:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:09,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 00:27:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:10,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:27:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:10,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 00:27:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:10,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 00:27:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:10,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 00:27:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:10,213 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 00:27:10,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:27:10,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601210014] [2024-11-10 00:27:10,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601210014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:27:10,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:27:10,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 00:27:10,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617916186] [2024-11-10 00:27:10,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:27:10,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:27:10,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:27:10,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:27:10,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:27:10,264 INFO L87 Difference]: Start difference. First operand has 2519 states, 2479 states have (on average 2.45461879790238) internal successors, (6085), 2491 states have internal predecessors, (6085), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 00:27:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:27:10,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:27:10,680 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 126 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:27:10,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 439 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:27:10,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:27:10,683 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 00:27:10,688 INFO L158 Benchmark]: Toolchain (without parser) took 17393.27ms. Allocated memory was 169.9MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 123.8MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 418.6MB. Max. memory is 16.1GB. [2024-11-10 00:27:10,688 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:27:10,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3159.63ms. Allocated memory was 169.9MB in the beginning and 251.7MB in the end (delta: 81.8MB). Free memory was 122.9MB in the beginning and 107.0MB in the end (delta: 15.9MB). Peak memory consumption was 130.1MB. Max. memory is 16.1GB. [2024-11-10 00:27:10,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 641.47ms. Allocated memory was 251.7MB in the beginning and 503.3MB in the end (delta: 251.7MB). Free memory was 107.0MB in the beginning and 354.4MB in the end (delta: -247.4MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2024-11-10 00:27:10,693 INFO L158 Benchmark]: Boogie Preprocessor took 631.86ms. Allocated memory is still 503.3MB. Free memory was 354.4MB in the beginning and 339.7MB in the end (delta: 14.7MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. [2024-11-10 00:27:10,694 INFO L158 Benchmark]: IcfgBuilder took 11590.18ms. Allocated memory was 503.3MB in the beginning and 1.8GB in the end (delta: 1.3GB). Free memory was 339.7MB in the beginning and 1.5GB in the end (delta: -1.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-10 00:27:10,696 INFO L158 Benchmark]: TraceAbstraction took 1364.23ms. Allocated memory is still 1.8GB. Free memory was 1.5GB in the beginning and 1.4GB in the end (delta: 120.6MB). Peak memory consumption was 119.5MB. Max. memory is 16.1GB. [2024-11-10 00:27:10,698 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3159.63ms. Allocated memory was 169.9MB in the beginning and 251.7MB in the end (delta: 81.8MB). Free memory was 122.9MB in the beginning and 107.0MB in the end (delta: 15.9MB). Peak memory consumption was 130.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 641.47ms. Allocated memory was 251.7MB in the beginning and 503.3MB in the end (delta: 251.7MB). Free memory was 107.0MB in the beginning and 354.4MB in the end (delta: -247.4MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 631.86ms. Allocated memory is still 503.3MB. Free memory was 354.4MB in the beginning and 339.7MB in the end (delta: 14.7MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. * IcfgBuilder took 11590.18ms. Allocated memory was 503.3MB in the beginning and 1.8GB in the end (delta: 1.3GB). Free memory was 339.7MB in the beginning and 1.5GB in the end (delta: -1.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * TraceAbstraction took 1364.23ms. Allocated memory is still 1.8GB. Free memory was 1.5GB in the beginning and 1.4GB in the end (delta: 120.6MB). Peak memory consumption was 119.5MB. 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 00:27:10,729 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.08.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 db9df7d135a21d792e3a2ca832f85f7c7fc22de6655b2cb0ba03be5cd467b7e3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:27:13,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:27:13,381 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-10 00:27:13,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:27:13,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:27:13,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:27:13,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:27:13,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:27:13,425 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:27:13,427 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:27:13,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:27:13,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:27:13,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:27:13,429 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:27:13,429 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:27:13,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:27:13,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:27:13,433 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:27:13,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:27:13,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:27:13,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:27:13,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:27:13,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:27:13,435 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 00:27:13,435 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 00:27:13,435 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:27:13,435 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 00:27:13,436 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:27:13,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:27:13,436 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:27:13,436 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:27:13,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:27:13,437 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:27:13,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:27:13,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:27:13,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:27:13,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:27:13,438 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:27:13,440 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 00:27:13,441 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 00:27:13,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:27:13,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:27:13,441 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:27:13,441 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:27:13,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9df7d135a21d792e3a2ca832f85f7c7fc22de6655b2cb0ba03be5cd467b7e3 [2024-11-10 00:27:13,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:27:13,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:27:13,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:27:13,820 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:27:13,820 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:27:13,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c [2024-11-10 00:27:15,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:27:16,100 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:27:16,102 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.08.cil-1.c [2024-11-10 00:27:16,153 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/101e0b39b/15485b0bc62842298e983e318ebf559a/FLAGf92d2f58e [2024-11-10 00:27:16,539 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/101e0b39b/15485b0bc62842298e983e318ebf559a [2024-11-10 00:27:16,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:27:16,545 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:27:16,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:27:16,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:27:16,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:27:16,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:27:16" (1/1) ... [2024-11-10 00:27:16,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4165cd76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:16, skipping insertion in model container [2024-11-10 00:27:16,555 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:27:16" (1/1) ... [2024-11-10 00:27:16,739 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:27:18,353 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.08.cil-1.c[381679,381692] [2024-11-10 00:27:18,411 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.08.cil-1.c[383339,383352] [2024-11-10 00:27:18,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:27:18,774 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:27:19,698 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.08.cil-1.c[381679,381692] [2024-11-10 00:27:19,702 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.08.cil-1.c[383339,383352] [2024-11-10 00:27:19,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:27:19,793 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:27:19,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19 WrapperNode [2024-11-10 00:27:19,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:27:19,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:27:19,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:27:19,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:27:19,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (1/1) ... [2024-11-10 00:27:19,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (1/1) ... [2024-11-10 00:27:20,406 INFO L138 Inliner]: procedures = 61, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12947 [2024-11-10 00:27:20,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:27:20,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:27:20,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:27:20,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:27:20,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (1/1) ... [2024-11-10 00:27:20,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (1/1) ... [2024-11-10 00:27:20,524 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (1/1) ... [2024-11-10 00:27:20,735 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 00:27:20,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (1/1) ... [2024-11-10 00:27:20,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (1/1) ... [2024-11-10 00:27:21,054 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (1/1) ... [2024-11-10 00:27:21,073 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (1/1) ... [2024-11-10 00:27:21,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (1/1) ... [2024-11-10 00:27:21,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (1/1) ... [2024-11-10 00:27:21,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:27:21,200 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:27:21,200 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:27:21,200 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:27:21,201 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (1/1) ... [2024-11-10 00:27:21,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:27:21,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:27:21,238 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 00:27:21,246 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 00:27:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:27:21,294 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:27:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:27:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:27:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:27:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:27:21,296 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:27:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 00:27:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:27:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:27:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:27:21,297 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:27:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:27:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:27:21,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:27:21,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:27:21,432 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:27:21,436 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:27:34,231 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:27:34,232 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:27:34,232 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:27:34,233 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:27:34,234 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:27:34,234 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:27:34,234 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:27:35,212 INFO L? ?]: Removed 4797 outVars from TransFormulas that were not future-live. [2024-11-10 00:27:35,212 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:27:35,281 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:27:35,281 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:27:35,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:27:35 BoogieIcfgContainer [2024-11-10 00:27:35,282 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:27:35,284 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:27:35,284 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:27:35,289 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:27:35,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:27:16" (1/3) ... [2024-11-10 00:27:35,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bbfca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:27:35, skipping insertion in model container [2024-11-10 00:27:35,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:19" (2/3) ... [2024-11-10 00:27:35,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bbfca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:27:35, skipping insertion in model container [2024-11-10 00:27:35,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:27:35" (3/3) ... [2024-11-10 00:27:35,293 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.08.cil-1.c [2024-11-10 00:27:35,312 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:27:35,313 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:27:35,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:27:35,456 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;@6c836906, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:27:35,456 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:27:35,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 2519 states, 2479 states have (on average 2.45461879790238) internal successors, (6085), 2491 states have internal predecessors, (6085), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-10 00:27:35,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-10 00:27:35,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:27:35,490 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] [2024-11-10 00:27:35,490 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:27:35,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:27:35,495 INFO L85 PathProgramCache]: Analyzing trace with hash 533717818, now seen corresponding path program 1 times [2024-11-10 00:27:35,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 00:27:35,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158995313] [2024-11-10 00:27:35,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:27:35,512 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 00:27:35,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 00:27:35,516 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 00:27:35,518 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 00:27:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:35,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 00:27:35,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:27:35,931 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 00:27:35,932 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 00:27:35,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 00:27:35,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158995313] [2024-11-10 00:27:35,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1158995313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:27:35,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:27:35,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:27:35,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764099690] [2024-11-10 00:27:35,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:27:35,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:27:35,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 00:27:35,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:27:35,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:27:35,981 INFO L87 Difference]: Start difference. First operand has 2519 states, 2479 states have (on average 2.45461879790238) internal successors, (6085), 2491 states have internal predecessors, (6085), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 00:27:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:27:36,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:27:36,054 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 57 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:27:36,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 263 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:27:36,066 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 00:27:36,258 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 00:27:36,260 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 00:27:36,267 INFO L158 Benchmark]: Toolchain (without parser) took 19722.36ms. Allocated memory was 83.9MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 43.7MB in the beginning and 796.9MB in the end (delta: -753.3MB). Peak memory consumption was 589.7MB. Max. memory is 16.1GB. [2024-11-10 00:27:36,269 INFO L158 Benchmark]: CDTParser took 1.77ms. Allocated memory is still 69.2MB. Free memory was 45.4MB in the beginning and 45.3MB in the end (delta: 92.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:27:36,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3246.92ms. Allocated memory was 83.9MB in the beginning and 203.4MB in the end (delta: 119.5MB). Free memory was 43.3MB in the beginning and 96.7MB in the end (delta: -53.4MB). Peak memory consumption was 94.8MB. Max. memory is 16.1GB. [2024-11-10 00:27:36,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 611.54ms. Allocated memory is still 203.4MB. Free memory was 96.7MB in the beginning and 64.0MB in the end (delta: 32.7MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. [2024-11-10 00:27:36,271 INFO L158 Benchmark]: Boogie Preprocessor took 790.90ms. Allocated memory was 203.4MB in the beginning and 432.0MB in the end (delta: 228.6MB). Free memory was 64.0MB in the beginning and 254.8MB in the end (delta: -190.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-10 00:27:36,271 INFO L158 Benchmark]: IcfgBuilder took 14082.34ms. Allocated memory was 432.0MB in the beginning and 1.4GB in the end (delta: 996.1MB). Free memory was 254.8MB in the beginning and 864.0MB in the end (delta: -609.2MB). Peak memory consumption was 640.7MB. Max. memory is 16.1GB. [2024-11-10 00:27:36,272 INFO L158 Benchmark]: TraceAbstraction took 983.00ms. Allocated memory is still 1.4GB. Free memory was 863.0MB in the beginning and 796.9MB in the end (delta: 66.1MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-11-10 00:27:36,278 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.77ms. Allocated memory is still 69.2MB. Free memory was 45.4MB in the beginning and 45.3MB in the end (delta: 92.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3246.92ms. Allocated memory was 83.9MB in the beginning and 203.4MB in the end (delta: 119.5MB). Free memory was 43.3MB in the beginning and 96.7MB in the end (delta: -53.4MB). Peak memory consumption was 94.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 611.54ms. Allocated memory is still 203.4MB. Free memory was 96.7MB in the beginning and 64.0MB in the end (delta: 32.7MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 790.90ms. Allocated memory was 203.4MB in the beginning and 432.0MB in the end (delta: 228.6MB). Free memory was 64.0MB in the beginning and 254.8MB in the end (delta: -190.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * IcfgBuilder took 14082.34ms. Allocated memory was 432.0MB in the beginning and 1.4GB in the end (delta: 996.1MB). Free memory was 254.8MB in the beginning and 864.0MB in the end (delta: -609.2MB). Peak memory consumption was 640.7MB. Max. memory is 16.1GB. * TraceAbstraction took 983.00ms. Allocated memory is still 1.4GB. Free memory was 863.0MB in the beginning and 796.9MB in the end (delta: 66.1MB). Peak memory consumption was 65.0MB. 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 00:27:36,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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