./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label41+token_ring.03.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_label41+token_ring.03.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 f1e5a0d04cda68be8a659e3f7c3c8d0a5df6c0732a10757201346fc85875f569 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:23:43,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:23:43,842 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:23:43,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:23:43,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:23:43,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:23:43,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:23:43,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:23:43,863 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:23:43,864 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:23:43,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:23:43,864 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:23:43,865 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:23:43,865 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:23:43,866 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:23:43,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:23:43,866 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:23:43,867 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:23:43,867 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:23:43,867 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:23:43,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:23:43,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:23:43,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:23:43,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:23:43,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:23:43,869 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:23:43,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:23:43,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:23:43,870 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:23:43,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:23:43,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:23:43,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:23:43,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:23:43,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:23:43,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:23:43,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:23:43,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:23:43,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:23:43,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:23:43,873 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:23:43,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:23:43,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:23:43,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e5a0d04cda68be8a659e3f7c3c8d0a5df6c0732a10757201346fc85875f569 [2024-11-10 00:23:44,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:23:44,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:23:44,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:23:44,126 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:23:44,127 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:23:44,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label41+token_ring.03.cil-2.c [2024-11-10 00:23:45,462 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:23:45,987 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:23:45,989 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.03.cil-2.c [2024-11-10 00:23:46,027 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df8aa61f3/77065ecfea154c4cb9ab309e80ba0b1b/FLAG4afd05393 [2024-11-10 00:23:46,039 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df8aa61f3/77065ecfea154c4cb9ab309e80ba0b1b [2024-11-10 00:23:46,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:23:46,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:23:46,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:23:46,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:23:46,052 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:23:46,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:23:46" (1/1) ... [2024-11-10 00:23:46,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6a14ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:46, skipping insertion in model container [2024-11-10 00:23:46,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:23:46" (1/1) ... [2024-11-10 00:23:46,186 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:23:47,549 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_label41+token_ring.03.cil-2.c[376251,376264] [2024-11-10 00:23:47,588 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_label41+token_ring.03.cil-2.c[383339,383352] [2024-11-10 00:23:47,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:23:47,715 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:23:48,413 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_label41+token_ring.03.cil-2.c[376251,376264] [2024-11-10 00:23:48,420 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_label41+token_ring.03.cil-2.c[383339,383352] [2024-11-10 00:23:48,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:23:48,485 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:23:48,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48 WrapperNode [2024-11-10 00:23:48,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:23:48,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:23:48,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:23:48,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:23:48,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (1/1) ... [2024-11-10 00:23:48,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (1/1) ... [2024-11-10 00:23:48,780 INFO L138 Inliner]: procedures = 50, calls = 50, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 12686 [2024-11-10 00:23:48,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:23:48,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:23:48,781 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:23:48,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:23:48,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (1/1) ... [2024-11-10 00:23:48,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (1/1) ... [2024-11-10 00:23:49,025 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (1/1) ... [2024-11-10 00:23:49,181 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 00:23:49,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (1/1) ... [2024-11-10 00:23:49,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (1/1) ... [2024-11-10 00:23:49,346 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (1/1) ... [2024-11-10 00:23:49,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (1/1) ... [2024-11-10 00:23:49,396 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (1/1) ... [2024-11-10 00:23:49,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (1/1) ... [2024-11-10 00:23:49,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:23:49,472 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:23:49,472 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:23:49,472 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:23:49,472 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (1/1) ... [2024-11-10 00:23:49,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:23:49,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:23:49,506 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 00:23:49,513 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 00:23:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:23:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:23:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:23:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:23:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:23:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:23:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:23:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:23:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:23:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:23:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:23:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:23:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:23:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:23:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:23:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:23:49,661 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:23:49,663 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:23:58,291 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:23:58,292 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:23:58,292 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:23:58,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:23:58,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:23:58,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:23:58,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:23:58,920 INFO L? ?]: Removed 4767 outVars from TransFormulas that were not future-live. [2024-11-10 00:23:58,921 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:23:58,990 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:23:58,991 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:23:58,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:23:58 BoogieIcfgContainer [2024-11-10 00:23:58,991 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:23:58,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:23:58,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:23:58,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:23:58,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:23:46" (1/3) ... [2024-11-10 00:23:58,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c625b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:23:58, skipping insertion in model container [2024-11-10 00:23:58,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:23:48" (2/3) ... [2024-11-10 00:23:58,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c625b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:23:58, skipping insertion in model container [2024-11-10 00:23:59,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:23:58" (3/3) ... [2024-11-10 00:23:59,001 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.03.cil-2.c [2024-11-10 00:23:59,018 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:23:59,019 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:23:59,138 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:23:59,145 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;@4f6a9820, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:23:59,146 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:23:59,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 2369 states, 2339 states have (on average 2.503206498503634) internal successors, (5855), 2346 states have internal predecessors, (5855), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-10 00:23:59,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-10 00:23:59,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:23:59,179 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] [2024-11-10 00:23:59,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:23:59,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:23:59,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1897625104, now seen corresponding path program 1 times [2024-11-10 00:23:59,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:23:59,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822982848] [2024-11-10 00:23:59,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:23:59,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:23:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:23:59,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 00:23:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:23:59,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 00:23:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:23:59,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 00:23:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:23:59,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 00:23:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:23:59,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 00:23:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:23:59,593 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 00:23:59,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:23:59,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822982848] [2024-11-10 00:23:59,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822982848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:23:59,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:23:59,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:23:59,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302691801] [2024-11-10 00:23:59,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:23:59,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 00:23:59,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:23:59,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 00:23:59,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 00:23:59,636 INFO L87 Difference]: Start difference. First operand has 2369 states, 2339 states have (on average 2.503206498503634) internal successors, (5855), 2346 states have internal predecessors, (5855), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (5), 3 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 00:23:59,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:23:59,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:23:59,880 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 126 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:23:59,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 290 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:23:59,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:23:59,882 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 00:23:59,887 INFO L158 Benchmark]: Toolchain (without parser) took 13841.68ms. Allocated memory was 184.5MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 136.2MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 329.6MB. Max. memory is 16.1GB. [2024-11-10 00:23:59,887 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 184.5MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:23:59,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2438.90ms. Allocated memory was 184.5MB in the beginning and 337.6MB in the end (delta: 153.1MB). Free memory was 136.1MB in the beginning and 209.7MB in the end (delta: -73.6MB). Peak memory consumption was 163.4MB. Max. memory is 16.1GB. [2024-11-10 00:23:59,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 294.27ms. Allocated memory is still 337.6MB. Free memory was 209.7MB in the beginning and 131.1MB in the end (delta: 78.6MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2024-11-10 00:23:59,888 INFO L158 Benchmark]: Boogie Preprocessor took 689.52ms. Allocated memory is still 337.6MB. Free memory was 131.1MB in the beginning and 151.0MB in the end (delta: -19.9MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-11-10 00:23:59,889 INFO L158 Benchmark]: IcfgBuilder took 9520.01ms. Allocated memory was 337.6MB in the beginning and 2.5GB in the end (delta: 2.1GB). Free memory was 149.9MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 388.5MB. Max. memory is 16.1GB. [2024-11-10 00:23:59,889 INFO L158 Benchmark]: TraceAbstraction took 891.62ms. Allocated memory is still 2.5GB. Free memory was 2.2GB in the beginning and 2.1GB in the end (delta: 82.8MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2024-11-10 00:23:59,891 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 184.5MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2438.90ms. Allocated memory was 184.5MB in the beginning and 337.6MB in the end (delta: 153.1MB). Free memory was 136.1MB in the beginning and 209.7MB in the end (delta: -73.6MB). Peak memory consumption was 163.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 294.27ms. Allocated memory is still 337.6MB. Free memory was 209.7MB in the beginning and 131.1MB in the end (delta: 78.6MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 689.52ms. Allocated memory is still 337.6MB. Free memory was 131.1MB in the beginning and 151.0MB in the end (delta: -19.9MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * IcfgBuilder took 9520.01ms. Allocated memory was 337.6MB in the beginning and 2.5GB in the end (delta: 2.1GB). Free memory was 149.9MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 388.5MB. Max. memory is 16.1GB. * TraceAbstraction took 891.62ms. Allocated memory is still 2.5GB. Free memory was 2.2GB in the beginning and 2.1GB in the end (delta: 82.8MB). Peak memory consumption was 83.9MB. 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 00:23:59,919 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_label41+token_ring.03.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 f1e5a0d04cda68be8a659e3f7c3c8d0a5df6c0732a10757201346fc85875f569 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:24:02,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:24:02,190 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-10 00:24:02,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:24:02,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:24:02,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:24:02,224 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:24:02,224 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:24:02,227 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:24:02,228 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:24:02,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:24:02,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:24:02,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:24:02,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:24:02,230 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:24:02,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:24:02,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:24:02,232 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:24:02,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:24:02,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:24:02,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:24:02,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:24:02,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:24:02,235 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 00:24:02,236 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 00:24:02,236 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:24:02,236 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 00:24:02,236 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:24:02,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:24:02,237 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:24:02,237 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:24:02,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:24:02,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:24:02,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:24:02,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:24:02,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:24:02,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:24:02,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:24:02,238 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 00:24:02,239 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 00:24:02,239 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:24:02,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:24:02,240 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:24:02,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:24:02,240 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e5a0d04cda68be8a659e3f7c3c8d0a5df6c0732a10757201346fc85875f569 [2024-11-10 00:24:02,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:24:02,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:24:02,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:24:02,561 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:24:02,563 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:24:02,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label41+token_ring.03.cil-2.c [2024-11-10 00:24:03,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:24:04,566 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:24:04,567 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label41+token_ring.03.cil-2.c [2024-11-10 00:24:04,606 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca32dca3f/290a0c403ee24a1d85839ef2739a8581/FLAG8258b931c [2024-11-10 00:24:04,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca32dca3f/290a0c403ee24a1d85839ef2739a8581 [2024-11-10 00:24:04,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:24:04,627 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:24:04,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:24:04,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:24:04,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:24:04,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:24:04" (1/1) ... [2024-11-10 00:24:04,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226fa81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:04, skipping insertion in model container [2024-11-10 00:24:04,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:24:04" (1/1) ... [2024-11-10 00:24:04,776 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:24:06,088 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_label41+token_ring.03.cil-2.c[376251,376264] [2024-11-10 00:24:06,126 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_label41+token_ring.03.cil-2.c[383339,383352] [2024-11-10 00:24:06,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:24:06,240 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:24:06,861 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_label41+token_ring.03.cil-2.c[376251,376264] [2024-11-10 00:24:06,877 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_label41+token_ring.03.cil-2.c[383339,383352] [2024-11-10 00:24:06,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:24:06,941 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:24:06,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06 WrapperNode [2024-11-10 00:24:06,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:24:06,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:24:06,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:24:06,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:24:06,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (1/1) ... [2024-11-10 00:24:07,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (1/1) ... [2024-11-10 00:24:07,375 INFO L138 Inliner]: procedures = 51, calls = 50, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 12662 [2024-11-10 00:24:07,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:24:07,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:24:07,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:24:07,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:24:07,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (1/1) ... [2024-11-10 00:24:07,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (1/1) ... [2024-11-10 00:24:07,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (1/1) ... [2024-11-10 00:24:07,611 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 00:24:07,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (1/1) ... [2024-11-10 00:24:07,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (1/1) ... [2024-11-10 00:24:07,761 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (1/1) ... [2024-11-10 00:24:07,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (1/1) ... [2024-11-10 00:24:07,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (1/1) ... [2024-11-10 00:24:07,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (1/1) ... [2024-11-10 00:24:07,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:24:07,992 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:24:07,992 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:24:07,992 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:24:07,993 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (1/1) ... [2024-11-10 00:24:08,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:24:08,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:24:08,062 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 00:24:08,073 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 00:24:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:24:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:24:08,123 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:24:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:24:08,124 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:24:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:24:08,125 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:24:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 00:24:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:24:08,125 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:24:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:24:08,125 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:24:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:24:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:24:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:24:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:24:08,338 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:24:08,344 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:24:19,161 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:24:19,161 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:24:19,161 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:24:19,162 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:24:19,162 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:24:19,162 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:24:19,162 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:24:20,040 INFO L? ?]: Removed 4767 outVars from TransFormulas that were not future-live. [2024-11-10 00:24:20,040 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:24:20,093 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:24:20,093 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:24:20,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:24:20 BoogieIcfgContainer [2024-11-10 00:24:20,094 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:24:20,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:24:20,096 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:24:20,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:24:20,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:24:04" (1/3) ... [2024-11-10 00:24:20,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ac1b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:24:20, skipping insertion in model container [2024-11-10 00:24:20,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:06" (2/3) ... [2024-11-10 00:24:20,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ac1b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:24:20, skipping insertion in model container [2024-11-10 00:24:20,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:24:20" (3/3) ... [2024-11-10 00:24:20,103 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.03.cil-2.c [2024-11-10 00:24:20,117 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:24:20,117 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:24:20,238 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:24:20,243 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;@1e216208, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:24:20,243 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:24:20,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 2369 states, 2339 states have (on average 2.503206498503634) internal successors, (5855), 2346 states have internal predecessors, (5855), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-10 00:24:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-10 00:24:20,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:24:20,267 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] [2024-11-10 00:24:20,268 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:24:20,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:24:20,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1897625104, now seen corresponding path program 1 times [2024-11-10 00:24:20,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 00:24:20,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038930559] [2024-11-10 00:24:20,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:24:20,286 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 00:24:20,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 00:24:20,289 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 00:24:20,337 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 00:24:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:24:20,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 00:24:20,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:24:20,688 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 00:24:20,689 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 00:24:20,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 00:24:20,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038930559] [2024-11-10 00:24:20,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038930559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:24:20,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:24:20,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:24:20,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104641703] [2024-11-10 00:24:20,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:24:20,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:24:20,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 00:24:20,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:24:20,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:24:20,720 INFO L87 Difference]: Start difference. First operand has 2369 states, 2339 states have (on average 2.503206498503634) internal successors, (5855), 2346 states have internal predecessors, (5855), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 00:24:20,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 00:24:20,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 78 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 00:24:20,778 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 109 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:24:20,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 254 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:24:20,786 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 00:24:20,983 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 00:24:20,985 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 00:24:20,989 INFO L158 Benchmark]: Toolchain (without parser) took 16362.24ms. Allocated memory was 115.3MB in the beginning and 2.5GB in the end (delta: 2.4GB). Free memory was 75.7MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 364.0MB. Max. memory is 16.1GB. [2024-11-10 00:24:20,989 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 81.8MB. Free memory was 51.3MB in the beginning and 51.1MB in the end (delta: 127.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 00:24:20,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2314.12ms. Allocated memory was 115.3MB in the beginning and 285.2MB in the end (delta: 169.9MB). Free memory was 75.3MB in the beginning and 162.5MB in the end (delta: -87.2MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. [2024-11-10 00:24:20,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 433.52ms. Allocated memory is still 285.2MB. Free memory was 162.5MB in the beginning and 134.6MB in the end (delta: 27.9MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. [2024-11-10 00:24:20,990 INFO L158 Benchmark]: Boogie Preprocessor took 614.30ms. Allocated memory was 285.2MB in the beginning and 595.6MB in the end (delta: 310.4MB). Free memory was 134.6MB in the beginning and 435.5MB in the end (delta: -300.9MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2024-11-10 00:24:20,991 INFO L158 Benchmark]: IcfgBuilder took 12102.16ms. Allocated memory was 595.6MB in the beginning and 2.5GB in the end (delta: 1.9GB). Free memory was 435.5MB in the beginning and 2.1GB in the end (delta: -1.7GB). Peak memory consumption was 509.5MB. Max. memory is 16.1GB. [2024-11-10 00:24:20,991 INFO L158 Benchmark]: TraceAbstraction took 891.77ms. Allocated memory is still 2.5GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-11-10 00:24:20,993 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84ms. Allocated memory is still 81.8MB. Free memory was 51.3MB in the beginning and 51.1MB in the end (delta: 127.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2314.12ms. Allocated memory was 115.3MB in the beginning and 285.2MB in the end (delta: 169.9MB). Free memory was 75.3MB in the beginning and 162.5MB in the end (delta: -87.2MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 433.52ms. Allocated memory is still 285.2MB. Free memory was 162.5MB in the beginning and 134.6MB in the end (delta: 27.9MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 614.30ms. Allocated memory was 285.2MB in the beginning and 595.6MB in the end (delta: 310.4MB). Free memory was 134.6MB in the beginning and 435.5MB in the end (delta: -300.9MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * IcfgBuilder took 12102.16ms. Allocated memory was 595.6MB in the beginning and 2.5GB in the end (delta: 1.9GB). Free memory was 435.5MB in the beginning and 2.1GB in the end (delta: -1.7GB). Peak memory consumption was 509.5MB. Max. memory is 16.1GB. * TraceAbstraction took 891.77ms. Allocated memory is still 2.5GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. 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 00:24:21,017 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