./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.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_label47+token_ring.04.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 056b77142139934f04c5cd96553e37eaed588abf60608a3beeeec0aa5c00ccfe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:31:44,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:31:45,031 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:31:45,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:31:45,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:31:45,061 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:31:45,061 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:31:45,061 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:31:45,062 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:31:45,063 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:31:45,063 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:31:45,064 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:31:45,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:31:45,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:31:45,064 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:31:45,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:31:45,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:31:45,067 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:31:45,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:31:45,068 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:31:45,068 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:31:45,068 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:31:45,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:31:45,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:31:45,069 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:31:45,069 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:31:45,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:31:45,069 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:31:45,070 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:31:45,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:31:45,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:31:45,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:31:45,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:31:45,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:31:45,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:31:45,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:31:45,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:31:45,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:31:45,071 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:31:45,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:31:45,072 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:31:45,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:31:45,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 056b77142139934f04c5cd96553e37eaed588abf60608a3beeeec0aa5c00ccfe [2024-11-10 00:31:45,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:31:45,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:31:45,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:31:45,316 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:31:45,317 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:31:45,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.cil-1.c [2024-11-10 00:31:46,866 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:31:47,425 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:31:47,427 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.cil-1.c [2024-11-10 00:31:47,487 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4423a37d4/89334176370c491eaf38a4212424d13c/FLAG40a2e0097 [2024-11-10 00:31:47,502 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4423a37d4/89334176370c491eaf38a4212424d13c [2024-11-10 00:31:47,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:31:47,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:31:47,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:31:47,508 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:31:47,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:31:47,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:31:47" (1/1) ... [2024-11-10 00:31:47,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c201236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:47, skipping insertion in model container [2024-11-10 00:31:47,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:31:47" (1/1) ... [2024-11-10 00:31:47,675 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:31:48,935 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_label47+token_ring.04.cil-1.c[377612,377625] [2024-11-10 00:31:49,000 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_label47+token_ring.04.cil-1.c[383339,383352] [2024-11-10 00:31:49,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:31:49,162 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:31:50,126 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_label47+token_ring.04.cil-1.c[377612,377625] [2024-11-10 00:31:50,140 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_label47+token_ring.04.cil-1.c[383339,383352] [2024-11-10 00:31:50,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:31:50,203 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:31:50,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50 WrapperNode [2024-11-10 00:31:50,204 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:31:50,205 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:31:50,206 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:31:50,206 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:31:50,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (1/1) ... [2024-11-10 00:31:50,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (1/1) ... [2024-11-10 00:31:50,568 INFO L138 Inliner]: procedures = 52, calls = 53, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 12745 [2024-11-10 00:31:50,568 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:31:50,569 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:31:50,569 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:31:50,569 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:31:50,580 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (1/1) ... [2024-11-10 00:31:50,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (1/1) ... [2024-11-10 00:31:50,773 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (1/1) ... [2024-11-10 00:31:50,850 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 00:31:50,850 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (1/1) ... [2024-11-10 00:31:50,850 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (1/1) ... [2024-11-10 00:31:51,043 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (1/1) ... [2024-11-10 00:31:51,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (1/1) ... [2024-11-10 00:31:51,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (1/1) ... [2024-11-10 00:31:51,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (1/1) ... [2024-11-10 00:31:51,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:31:51,162 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:31:51,163 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:31:51,163 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:31:51,163 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (1/1) ... [2024-11-10 00:31:51,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:31:51,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:31:51,208 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 00:31:51,218 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 00:31:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:31:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:31:51,274 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:31:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:31:51,274 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:31:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:31:51,274 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:31:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:31:51,274 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:31:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:31:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:31:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:31:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:31:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:31:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:31:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:31:51,361 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:31:51,363 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:32:00,158 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:32:00,159 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:32:00,159 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:32:00,159 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:32:00,159 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:32:00,160 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:32:00,160 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:32:00,724 INFO L? ?]: Removed 4773 outVars from TransFormulas that were not future-live. [2024-11-10 00:32:00,724 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:32:00,819 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:32:00,819 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:32:00,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:32:00 BoogieIcfgContainer [2024-11-10 00:32:00,820 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:32:00,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:32:00,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:32:00,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:32:00,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:31:47" (1/3) ... [2024-11-10 00:32:00,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2218eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:32:00, skipping insertion in model container [2024-11-10 00:32:00,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:31:50" (2/3) ... [2024-11-10 00:32:00,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2218eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:32:00, skipping insertion in model container [2024-11-10 00:32:00,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:32:00" (3/3) ... [2024-11-10 00:32:00,836 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.04.cil-1.c [2024-11-10 00:32:00,867 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:32:00,867 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:32:01,063 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:32:01,069 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;@18ccb291, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:32:01,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:32:01,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 2399 states, 2367 states have (on average 2.4930291508238276) internal successors, (5901), 2375 states have internal predecessors, (5901), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-10 00:32:01,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 00:32:01,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:32:01,103 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] [2024-11-10 00:32:01,103 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:32:01,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:32:01,107 INFO L85 PathProgramCache]: Analyzing trace with hash 582852068, now seen corresponding path program 1 times [2024-11-10 00:32:01,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:32:01,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751492726] [2024-11-10 00:32:01,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:32:01,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:32:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:32:01,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 00:32:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:32:01,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 00:32:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:32:01,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 00:32:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:32:01,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 00:32:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:32:01,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 00:32:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:32:01,485 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 00:32:01,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:32:01,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751492726] [2024-11-10 00:32:01,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751492726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:32:01,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:32:01,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 00:32:01,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111319288] [2024-11-10 00:32:01,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:32:01,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:32:01,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:32:01,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:32:01,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:32:01,518 INFO L87 Difference]: Start difference. First operand has 2399 states, 2367 states have (on average 2.4930291508238276) internal successors, (5901), 2375 states have internal predecessors, (5901), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 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 00:32:01,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:32:01,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:32:01,870 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 84 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:32:01,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 323 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:32:01,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:32:01,872 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 00:32:01,876 INFO L158 Benchmark]: Toolchain (without parser) took 14370.42ms. Allocated memory was 134.2MB in the beginning and 1.1GB in the end (delta: 960.5MB). Free memory was 77.3MB in the beginning and 817.5MB in the end (delta: -740.2MB). Peak memory consumption was 219.7MB. Max. memory is 16.1GB. [2024-11-10 00:32:01,877 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:32:01,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2696.83ms. Allocated memory was 134.2MB in the beginning and 325.1MB in the end (delta: 190.8MB). Free memory was 77.3MB in the beginning and 218.1MB in the end (delta: -140.8MB). Peak memory consumption was 112.5MB. Max. memory is 16.1GB. [2024-11-10 00:32:01,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 363.12ms. Allocated memory is still 325.1MB. Free memory was 218.1MB in the beginning and 140.5MB in the end (delta: 77.6MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2024-11-10 00:32:01,878 INFO L158 Benchmark]: Boogie Preprocessor took 592.89ms. Allocated memory is still 325.1MB. Free memory was 140.5MB in the beginning and 154.1MB in the end (delta: -13.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-10 00:32:01,878 INFO L158 Benchmark]: IcfgBuilder took 9657.42ms. Allocated memory was 325.1MB in the beginning and 1.1GB in the end (delta: 769.7MB). Free memory was 154.1MB in the beginning and 897.3MB in the end (delta: -743.1MB). Peak memory consumption was 436.5MB. Max. memory is 16.1GB. [2024-11-10 00:32:01,878 INFO L158 Benchmark]: TraceAbstraction took 1049.32ms. Allocated memory is still 1.1GB. Free memory was 896.3MB in the beginning and 817.5MB in the end (delta: 78.8MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2024-11-10 00:32:01,880 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 134.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2696.83ms. Allocated memory was 134.2MB in the beginning and 325.1MB in the end (delta: 190.8MB). Free memory was 77.3MB in the beginning and 218.1MB in the end (delta: -140.8MB). Peak memory consumption was 112.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 363.12ms. Allocated memory is still 325.1MB. Free memory was 218.1MB in the beginning and 140.5MB in the end (delta: 77.6MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 592.89ms. Allocated memory is still 325.1MB. Free memory was 140.5MB in the beginning and 154.1MB in the end (delta: -13.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * IcfgBuilder took 9657.42ms. Allocated memory was 325.1MB in the beginning and 1.1GB in the end (delta: 769.7MB). Free memory was 154.1MB in the beginning and 897.3MB in the end (delta: -743.1MB). Peak memory consumption was 436.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1049.32ms. Allocated memory is still 1.1GB. Free memory was 896.3MB in the beginning and 817.5MB in the end (delta: 78.8MB). Peak memory consumption was 79.7MB. 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 00:32:01,918 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_label47+token_ring.04.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 056b77142139934f04c5cd96553e37eaed588abf60608a3beeeec0aa5c00ccfe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:32:04,159 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:32:04,223 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-10 00:32:04,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:32:04,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:32:04,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:32:04,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:32:04,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:32:04,246 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:32:04,246 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:32:04,247 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:32:04,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:32:04,247 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:32:04,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:32:04,248 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:32:04,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:32:04,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:32:04,250 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:32:04,250 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:32:04,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:32:04,250 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:32:04,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:32:04,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:32:04,252 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 00:32:04,252 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 00:32:04,252 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:32:04,252 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 00:32:04,253 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:32:04,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:32:04,253 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:32:04,253 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:32:04,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:32:04,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:32:04,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:32:04,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:32:04,254 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:32:04,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:32:04,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:32:04,255 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 00:32:04,255 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 00:32:04,255 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:32:04,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:32:04,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:32:04,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:32:04,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 056b77142139934f04c5cd96553e37eaed588abf60608a3beeeec0aa5c00ccfe [2024-11-10 00:32:04,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:32:04,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:32:04,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:32:04,582 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:32:04,582 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:32:04,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.cil-1.c [2024-11-10 00:32:06,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:32:06,550 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:32:06,551 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.04.cil-1.c [2024-11-10 00:32:06,591 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd64462fd/23b639558bde46468c576ed086a6af8b/FLAGbd442f0d0 [2024-11-10 00:32:06,608 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd64462fd/23b639558bde46468c576ed086a6af8b [2024-11-10 00:32:06,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:32:06,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:32:06,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:32:06,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:32:06,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:32:06,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:32:06" (1/1) ... [2024-11-10 00:32:06,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549ced08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:06, skipping insertion in model container [2024-11-10 00:32:06,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:32:06" (1/1) ... [2024-11-10 00:32:06,779 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:32:08,073 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_label47+token_ring.04.cil-1.c[377612,377625] [2024-11-10 00:32:08,121 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_label47+token_ring.04.cil-1.c[383339,383352] [2024-11-10 00:32:08,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:32:08,332 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:32:08,997 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_label47+token_ring.04.cil-1.c[377612,377625] [2024-11-10 00:32:09,004 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_label47+token_ring.04.cil-1.c[383339,383352] [2024-11-10 00:32:09,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:32:09,097 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:32:09,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09 WrapperNode [2024-11-10 00:32:09,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:32:09,099 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:32:09,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:32:09,099 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:32:09,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (1/1) ... [2024-11-10 00:32:09,185 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (1/1) ... [2024-11-10 00:32:09,596 INFO L138 Inliner]: procedures = 53, calls = 53, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 12719 [2024-11-10 00:32:09,596 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:32:09,597 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:32:09,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:32:09,597 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:32:09,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (1/1) ... [2024-11-10 00:32:09,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (1/1) ... [2024-11-10 00:32:09,693 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (1/1) ... [2024-11-10 00:32:09,773 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 00:32:09,773 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (1/1) ... [2024-11-10 00:32:09,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (1/1) ... [2024-11-10 00:32:09,961 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (1/1) ... [2024-11-10 00:32:09,979 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (1/1) ... [2024-11-10 00:32:10,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (1/1) ... [2024-11-10 00:32:10,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (1/1) ... [2024-11-10 00:32:10,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:32:10,145 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:32:10,145 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:32:10,145 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:32:10,146 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (1/1) ... [2024-11-10 00:32:10,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:32:10,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:32:10,177 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 00:32:10,180 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 00:32:10,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:32:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:32:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:32:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:32:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:32:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:32:10,213 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:32:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 00:32:10,213 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:32:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:32:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:32:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:32:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:32:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:32:10,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:32:10,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:32:10,295 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:32:10,298 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:32:20,788 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:32:20,789 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:32:20,792 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:32:20,792 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:32:20,793 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:32:20,793 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:32:20,793 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:32:21,619 INFO L? ?]: Removed 4773 outVars from TransFormulas that were not future-live. [2024-11-10 00:32:21,619 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:32:21,668 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:32:21,669 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:32:21,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:32:21 BoogieIcfgContainer [2024-11-10 00:32:21,670 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:32:21,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:32:21,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:32:21,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:32:21,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:32:06" (1/3) ... [2024-11-10 00:32:21,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53773935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:32:21, skipping insertion in model container [2024-11-10 00:32:21,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:32:09" (2/3) ... [2024-11-10 00:32:21,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53773935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:32:21, skipping insertion in model container [2024-11-10 00:32:21,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:32:21" (3/3) ... [2024-11-10 00:32:21,678 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.04.cil-1.c [2024-11-10 00:32:21,691 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:32:21,692 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:32:21,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:32:21,787 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;@55e9700a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:32:21,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:32:21,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 2399 states, 2367 states have (on average 2.4930291508238276) internal successors, (5901), 2375 states have internal predecessors, (5901), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-10 00:32:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 00:32:21,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:32:21,816 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] [2024-11-10 00:32:21,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:32:21,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:32:21,822 INFO L85 PathProgramCache]: Analyzing trace with hash 582852068, now seen corresponding path program 1 times [2024-11-10 00:32:21,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 00:32:21,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325212460] [2024-11-10 00:32:21,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:32:21,834 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 00:32:21,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 00:32:21,837 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 00:32:21,838 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 00:32:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:32:22,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-10 00:32:22,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:32:22,102 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 00:32:22,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 00:32:22,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 00:32:22,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325212460] [2024-11-10 00:32:22,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325212460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:32:22,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:32:22,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:32:22,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601300921] [2024-11-10 00:32:22,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:32:22,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:32:22,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 00:32:22,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:32:22,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:32:22,130 INFO L87 Difference]: Start difference. First operand has 2399 states, 2367 states have (on average 2.4930291508238276) internal successors, (5901), 2375 states have internal predecessors, (5901), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 00:32:22,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:32:22,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 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 00:32:22,167 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 35 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 189 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 00:32:22,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 189 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:32:22,174 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 00:32:22,369 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 00:32:22,371 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 00:32:22,374 INFO L158 Benchmark]: Toolchain (without parser) took 15759.68ms. Allocated memory was 132.1MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 98.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 390.8MB. Max. memory is 16.1GB. [2024-11-10 00:32:22,374 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory was 61.1MB in the beginning and 61.0MB in the end (delta: 106.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:32:22,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2483.27ms. Allocated memory was 132.1MB in the beginning and 201.3MB in the end (delta: 69.2MB). Free memory was 98.2MB in the beginning and 102.8MB in the end (delta: -4.6MB). Peak memory consumption was 121.2MB. Max. memory is 16.1GB. [2024-11-10 00:32:22,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 497.52ms. Allocated memory was 201.3MB in the beginning and 394.3MB in the end (delta: 192.9MB). Free memory was 102.8MB in the beginning and 254.3MB in the end (delta: -151.5MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. [2024-11-10 00:32:22,376 INFO L158 Benchmark]: Boogie Preprocessor took 547.76ms. Allocated memory is still 394.3MB. Free memory was 254.3MB in the beginning and 232.8MB in the end (delta: 21.5MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2024-11-10 00:32:22,377 INFO L158 Benchmark]: IcfgBuilder took 11524.73ms. Allocated memory was 394.3MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 232.8MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 745.5MB. Max. memory is 16.1GB. [2024-11-10 00:32:22,377 INFO L158 Benchmark]: TraceAbstraction took 700.75ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-10 00:32:22,379 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory was 61.1MB in the beginning and 61.0MB in the end (delta: 106.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2483.27ms. Allocated memory was 132.1MB in the beginning and 201.3MB in the end (delta: 69.2MB). Free memory was 98.2MB in the beginning and 102.8MB in the end (delta: -4.6MB). Peak memory consumption was 121.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 497.52ms. Allocated memory was 201.3MB in the beginning and 394.3MB in the end (delta: 192.9MB). Free memory was 102.8MB in the beginning and 254.3MB in the end (delta: -151.5MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 547.76ms. Allocated memory is still 394.3MB. Free memory was 254.3MB in the beginning and 232.8MB in the end (delta: 21.5MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. * IcfgBuilder took 11524.73ms. Allocated memory was 394.3MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 232.8MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 745.5MB. Max. memory is 16.1GB. * TraceAbstraction took 700.75ms. Allocated memory is still 1.7GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. 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 00:32:22,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null