./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.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 9ef62c47abda8be3b48c3c090b2cfd60af093668e4aab452f52a0b386786ccc6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:24:30,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:24:30,915 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:24:30,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:24:30,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:24:30,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:24:30,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:24:30,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:24:30,953 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:24:30,953 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:24:30,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:24:30,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:24:30,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:24:30,961 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:24:30,961 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:24:30,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:24:30,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:24:30,962 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:24:30,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:24:30,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:24:30,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:24:30,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:24:30,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:24:30,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:24:30,964 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:24:30,965 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:24:30,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:24:30,965 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:24:30,965 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:24:30,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:24:30,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:24:30,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:24:30,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:24:30,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:24:30,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:24:30,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:24:30,968 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:24:30,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:24:30,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:24:30,968 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:24:30,969 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:24:30,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:24:30,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ef62c47abda8be3b48c3c090b2cfd60af093668e4aab452f52a0b386786ccc6 [2024-11-10 00:24:31,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:24:31,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:24:31,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:24:31,261 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:24:31,262 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:24:31,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-1.c [2024-11-10 00:24:32,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:24:33,508 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:24:33,509 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-1.c [2024-11-10 00:24:33,555 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0a093cd/a6e6a4ad9d8e46ad90db1a5b428eded8/FLAGb7a69ea7c [2024-11-10 00:24:33,915 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb0a093cd/a6e6a4ad9d8e46ad90db1a5b428eded8 [2024-11-10 00:24:33,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:24:33,920 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:24:33,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:24:33,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:24:33,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:24:33,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:24:33" (1/1) ... [2024-11-10 00:24:33,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf003d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:33, skipping insertion in model container [2024-11-10 00:24:33,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:24:33" (1/1) ... [2024-11-10 00:24:34,109 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:24:35,891 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-1.c[378560,378573] [2024-11-10 00:24:35,958 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-1.c[383339,383352] [2024-11-10 00:24:36,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:24:36,199 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:24:36,993 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-1.c[378560,378573] [2024-11-10 00:24:37,000 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_label42+token_ring.03.cil-1.c[383339,383352] [2024-11-10 00:24:37,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:24:37,083 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:24:37,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37 WrapperNode [2024-11-10 00:24:37,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:24:37,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:24:37,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:24:37,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:24:37,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (1/1) ... [2024-11-10 00:24:37,199 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (1/1) ... [2024-11-10 00:24:37,785 INFO L138 Inliner]: procedures = 50, calls = 51, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 12692 [2024-11-10 00:24:37,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:24:37,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:24:37,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:24:37,787 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:24:37,798 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (1/1) ... [2024-11-10 00:24:37,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (1/1) ... [2024-11-10 00:24:37,854 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (1/1) ... [2024-11-10 00:24:37,935 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 00:24:37,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (1/1) ... [2024-11-10 00:24:37,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (1/1) ... [2024-11-10 00:24:38,121 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (1/1) ... [2024-11-10 00:24:38,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (1/1) ... [2024-11-10 00:24:38,167 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (1/1) ... [2024-11-10 00:24:38,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (1/1) ... [2024-11-10 00:24:38,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:24:38,257 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:24:38,258 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:24:38,258 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:24:38,259 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (1/1) ... [2024-11-10 00:24:38,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:24:38,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:24:38,298 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 00:24:38,302 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 00:24:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:24:38,349 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:24:38,350 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:24:38,350 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:24:38,351 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:24:38,351 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:24:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:24:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-10 00:24:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-10 00:24:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:24:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:24:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:24:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:24:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:24:38,352 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:24:38,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:24:38,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:24:38,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:24:38,478 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:24:38,481 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:24:48,527 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:24:48,528 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:24:48,529 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:24:48,530 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:24:48,530 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:24:48,530 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:24:48,530 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:24:49,255 INFO L? ?]: Removed 4771 outVars from TransFormulas that were not future-live. [2024-11-10 00:24:49,256 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:24:49,330 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:24:49,331 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:24:49,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:24:49 BoogieIcfgContainer [2024-11-10 00:24:49,332 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:24:49,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:24:49,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:24:49,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:24:49,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:24:33" (1/3) ... [2024-11-10 00:24:49,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4bfa73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:24:49, skipping insertion in model container [2024-11-10 00:24:49,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:37" (2/3) ... [2024-11-10 00:24:49,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4bfa73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:24:49, skipping insertion in model container [2024-11-10 00:24:49,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:24:49" (3/3) ... [2024-11-10 00:24:49,342 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.03.cil-1.c [2024-11-10 00:24:49,365 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:24:49,365 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:24:49,516 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:24:49,525 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;@6d44c893, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:24:49,525 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:24:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 2377 states, 2344 states have (on average 2.5021331058020477) internal successors, (5865), 2353 states have internal predecessors, (5865), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-10 00:24:49,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 00:24:49,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:24:49,562 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] [2024-11-10 00:24:49,563 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:24:49,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:24:49,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1272064553, now seen corresponding path program 1 times [2024-11-10 00:24:49,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:24:49,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840538790] [2024-11-10 00:24:49,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:24:49,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:24:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:24:50,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 00:24:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:24:50,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 00:24:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:24:50,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 00:24:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:24:50,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 00:24:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:24:50,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 00:24:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:24:50,222 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 00:24:50,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:24:50,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840538790] [2024-11-10 00:24:50,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840538790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:24:50,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:24:50,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:24:50,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102870553] [2024-11-10 00:24:50,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:24:50,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 00:24:50,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:24:50,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 00:24:50,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 00:24:50,271 INFO L87 Difference]: Start difference. First operand has 2377 states, 2344 states have (on average 2.5021331058020477) internal successors, (5865), 2353 states have internal predecessors, (5865), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 00:24:50,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:24:50,482 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 00:24:50,488 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 00:24:50,490 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 00:24:50,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:24:50,492 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 00:24:50,497 INFO L158 Benchmark]: Toolchain (without parser) took 16577.14ms. Allocated memory was 230.7MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 184.4MB in the beginning and 590.3MB in the end (delta: -405.9MB). Peak memory consumption was 665.8MB. Max. memory is 16.1GB. [2024-11-10 00:24:50,497 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:24:50,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3164.49ms. Allocated memory is still 230.7MB. Free memory was 183.4MB in the beginning and 123.7MB in the end (delta: 59.6MB). Peak memory consumption was 182.3MB. Max. memory is 16.1GB. [2024-11-10 00:24:50,499 INFO L158 Benchmark]: Boogie Procedure Inliner took 700.11ms. Allocated memory was 230.7MB in the beginning and 400.6MB in the end (delta: 169.9MB). Free memory was 123.7MB in the beginning and 264.2MB in the end (delta: -140.5MB). Peak memory consumption was 112.2MB. Max. memory is 16.1GB. [2024-11-10 00:24:50,500 INFO L158 Benchmark]: Boogie Preprocessor took 469.15ms. Allocated memory is still 400.6MB. Free memory was 264.2MB in the beginning and 201.3MB in the end (delta: 62.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-11-10 00:24:50,501 INFO L158 Benchmark]: IcfgBuilder took 11074.77ms. Allocated memory was 400.6MB in the beginning and 1.3GB in the end (delta: 901.8MB). Free memory was 201.3MB in the beginning and 674.2MB in the end (delta: -472.8MB). Peak memory consumption was 432.1MB. Max. memory is 16.1GB. [2024-11-10 00:24:50,502 INFO L158 Benchmark]: TraceAbstraction took 1161.62ms. Allocated memory is still 1.3GB. Free memory was 673.1MB in the beginning and 590.3MB in the end (delta: 82.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2024-11-10 00:24:50,504 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3164.49ms. Allocated memory is still 230.7MB. Free memory was 183.4MB in the beginning and 123.7MB in the end (delta: 59.6MB). Peak memory consumption was 182.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 700.11ms. Allocated memory was 230.7MB in the beginning and 400.6MB in the end (delta: 169.9MB). Free memory was 123.7MB in the beginning and 264.2MB in the end (delta: -140.5MB). Peak memory consumption was 112.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 469.15ms. Allocated memory is still 400.6MB. Free memory was 264.2MB in the beginning and 201.3MB in the end (delta: 62.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * IcfgBuilder took 11074.77ms. Allocated memory was 400.6MB in the beginning and 1.3GB in the end (delta: 901.8MB). Free memory was 201.3MB in the beginning and 674.2MB in the end (delta: -472.8MB). Peak memory consumption was 432.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1161.62ms. Allocated memory is still 1.3GB. Free memory was 673.1MB in the beginning and 590.3MB in the end (delta: 82.8MB). Peak memory consumption was 81.8MB. 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 00:24:50,543 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.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 9ef62c47abda8be3b48c3c090b2cfd60af093668e4aab452f52a0b386786ccc6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:24:53,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:24:53,220 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-10 00:24:53,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:24:53,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:24:53,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:24:53,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:24:53,258 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:24:53,259 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:24:53,261 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:24:53,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:24:53,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:24:53,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:24:53,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:24:53,266 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:24:53,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:24:53,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:24:53,267 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:24:53,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:24:53,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:24:53,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:24:53,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:24:53,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:24:53,269 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 00:24:53,270 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 00:24:53,270 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:24:53,271 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 00:24:53,271 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:24:53,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:24:53,272 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:24:53,272 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:24:53,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:24:53,273 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:24:53,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:24:53,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:24:53,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:24:53,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:24:53,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:24:53,276 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 00:24:53,276 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 00:24:53,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:24:53,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:24:53,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:24:53,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:24:53,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ef62c47abda8be3b48c3c090b2cfd60af093668e4aab452f52a0b386786ccc6 [2024-11-10 00:24:53,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:24:53,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:24:53,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:24:53,662 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:24:53,662 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:24:53,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-1.c [2024-11-10 00:24:55,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:24:55,892 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:24:55,893 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-1.c [2024-11-10 00:24:55,945 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af65ce2ab/70df374ca5a043469f3fb6f1aaa18ad2/FLAGef522618b [2024-11-10 00:24:55,959 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af65ce2ab/70df374ca5a043469f3fb6f1aaa18ad2 [2024-11-10 00:24:55,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:24:55,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:24:55,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:24:55,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:24:55,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:24:55,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:24:55" (1/1) ... [2024-11-10 00:24:55,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61204b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:55, skipping insertion in model container [2024-11-10 00:24:55,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:24:55" (1/1) ... [2024-11-10 00:24:56,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:24:58,006 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-1.c[378560,378573] [2024-11-10 00:24:58,087 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-1.c[383339,383352] [2024-11-10 00:24:58,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:24:58,289 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:24:59,264 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-1.c[378560,378573] [2024-11-10 00:24:59,272 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label42+token_ring.03.cil-1.c[383339,383352] [2024-11-10 00:24:59,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:24:59,349 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:24:59,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59 WrapperNode [2024-11-10 00:24:59,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:24:59,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:24:59,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:24:59,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:24:59,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (1/1) ... [2024-11-10 00:24:59,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (1/1) ... [2024-11-10 00:24:59,988 INFO L138 Inliner]: procedures = 51, calls = 51, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 12667 [2024-11-10 00:24:59,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:24:59,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:24:59,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:24:59,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:25:00,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (1/1) ... [2024-11-10 00:25:00,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (1/1) ... [2024-11-10 00:25:00,083 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (1/1) ... [2024-11-10 00:25:00,257 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 00:25:00,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (1/1) ... [2024-11-10 00:25:00,258 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (1/1) ... [2024-11-10 00:25:00,618 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (1/1) ... [2024-11-10 00:25:00,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (1/1) ... [2024-11-10 00:25:00,706 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (1/1) ... [2024-11-10 00:25:00,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (1/1) ... [2024-11-10 00:25:00,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:25:00,912 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:25:00,913 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:25:00,913 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:25:00,914 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (1/1) ... [2024-11-10 00:25:00,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:25:00,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:25:00,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 00:25:01,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 00:25:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:25:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:25:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:25:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:25:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:25:01,078 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:25:01,078 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:25:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 00:25:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-10 00:25:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-10 00:25:01,079 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:25:01,079 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:25:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:25:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:25:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:25:01,081 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:25:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:25:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:25:01,228 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:25:01,231 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:25:13,893 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:25:13,895 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:25:13,895 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:25:13,895 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:25:13,896 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:25:13,897 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:25:13,897 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:25:14,719 INFO L? ?]: Removed 4771 outVars from TransFormulas that were not future-live. [2024-11-10 00:25:14,720 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:25:14,793 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:25:14,793 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:25:14,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:25:14 BoogieIcfgContainer [2024-11-10 00:25:14,794 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:25:14,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:25:14,797 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:25:14,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:25:14,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:24:55" (1/3) ... [2024-11-10 00:25:14,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145c7283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:25:14, skipping insertion in model container [2024-11-10 00:25:14,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:24:59" (2/3) ... [2024-11-10 00:25:14,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145c7283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:25:14, skipping insertion in model container [2024-11-10 00:25:14,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:25:14" (3/3) ... [2024-11-10 00:25:14,805 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.03.cil-1.c [2024-11-10 00:25:14,821 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:25:14,822 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:25:14,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:25:14,969 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;@135ae955, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:25:14,970 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:25:14,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 2377 states, 2344 states have (on average 2.5021331058020477) internal successors, (5865), 2353 states have internal predecessors, (5865), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-10 00:25:15,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 00:25:15,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:25:15,176 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] [2024-11-10 00:25:15,176 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:25:15,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:25:15,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1272064553, now seen corresponding path program 1 times [2024-11-10 00:25:15,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 00:25:15,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496416799] [2024-11-10 00:25:15,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:25:15,212 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 00:25:15,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 00:25:15,216 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 00:25:15,217 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 00:25:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:25:15,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 00:25:15,456 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:25:15,584 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 00:25:15,584 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 00:25:15,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 00:25:15,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496416799] [2024-11-10 00:25:15,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496416799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:25:15,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:25:15,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:25:15,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694472121] [2024-11-10 00:25:15,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:25:15,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:25:15,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 00:25:15,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:25:15,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:25:15,630 INFO L87 Difference]: Start difference. First operand has 2377 states, 2344 states have (on average 2.5021331058020477) internal successors, (5865), 2353 states have internal predecessors, (5865), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 00:25:15,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 00:25:15,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 79 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 00:25:15,732 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 00:25:15,733 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 00:25:15,741 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 00:25:15,936 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 00:25:15,937 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 00:25:15,941 INFO L158 Benchmark]: Toolchain (without parser) took 19978.64ms. Allocated memory was 67.1MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 25.9MB in the beginning and 1.7GB in the end (delta: -1.7GB). Peak memory consumption was 194.4MB. Max. memory is 16.1GB. [2024-11-10 00:25:15,942 INFO L158 Benchmark]: CDTParser took 1.22ms. Allocated memory is still 50.3MB. Free memory is still 26.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:25:15,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3386.77ms. Allocated memory was 67.1MB in the beginning and 224.4MB in the end (delta: 157.3MB). Free memory was 25.9MB in the beginning and 104.7MB in the end (delta: -78.8MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. [2024-11-10 00:25:15,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 637.92ms. Allocated memory is still 224.4MB. Free memory was 104.7MB in the beginning and 83.8MB in the end (delta: 21.0MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. [2024-11-10 00:25:15,946 INFO L158 Benchmark]: Boogie Preprocessor took 919.68ms. Allocated memory was 224.4MB in the beginning and 549.5MB in the end (delta: 325.1MB). Free memory was 83.8MB in the beginning and 395.3MB in the end (delta: -311.6MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2024-11-10 00:25:15,947 INFO L158 Benchmark]: IcfgBuilder took 13882.12ms. Allocated memory was 549.5MB in the beginning and 1.9GB in the end (delta: 1.4GB). Free memory was 395.3MB in the beginning and 946.2MB in the end (delta: -550.9MB). Peak memory consumption was 810.2MB. Max. memory is 16.1GB. [2024-11-10 00:25:15,947 INFO L158 Benchmark]: TraceAbstraction took 1143.67ms. Allocated memory is still 1.9GB. Free memory was 946.2MB in the beginning and 1.7GB in the end (delta: -730.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:25:15,952 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22ms. Allocated memory is still 50.3MB. Free memory is still 26.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3386.77ms. Allocated memory was 67.1MB in the beginning and 224.4MB in the end (delta: 157.3MB). Free memory was 25.9MB in the beginning and 104.7MB in the end (delta: -78.8MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 637.92ms. Allocated memory is still 224.4MB. Free memory was 104.7MB in the beginning and 83.8MB in the end (delta: 21.0MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 919.68ms. Allocated memory was 224.4MB in the beginning and 549.5MB in the end (delta: 325.1MB). Free memory was 83.8MB in the beginning and 395.3MB in the end (delta: -311.6MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * IcfgBuilder took 13882.12ms. Allocated memory was 549.5MB in the beginning and 1.9GB in the end (delta: 1.4GB). Free memory was 395.3MB in the beginning and 946.2MB in the end (delta: -550.9MB). Peak memory consumption was 810.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1143.67ms. Allocated memory is still 1.9GB. Free memory was 946.2MB in the beginning and 1.7GB in the end (delta: -730.9MB). There was no memory consumed. 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 00:25:15,983 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