./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe032_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 735b3cc8 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/pthread-wmm/safe032_tso.i -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 ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 00:54:25,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 00:54:25,285 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-14 00:54:25,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 00:54:25,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 00:54:25,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 00:54:25,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 00:54:25,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 00:54:25,314 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-14 00:54:25,314 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-14 00:54:25,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 00:54:25,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 00:54:25,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 00:54:25,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 00:54:25,314 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 00:54:25,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 00:54:25,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 00:54:25,314 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 00:54:25,315 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:54:25,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 00:54:25,315 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 00:54:25,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 00:54:25,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 00:54:25,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 00:54:25,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 00:54:25,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 00:54:25,316 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 [2025-03-14 00:54:25,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 00:54:25,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 00:54:25,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 00:54:25,549 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 00:54:25,549 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 00:54:25,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe032_tso.i [2025-03-14 00:54:26,652 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862fde5f9/6abd3c98f9854b8da10d6ab649b50ee1/FLAGdb53a8ffb [2025-03-14 00:54:26,918 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 00:54:26,919 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i [2025-03-14 00:54:26,927 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862fde5f9/6abd3c98f9854b8da10d6ab649b50ee1/FLAGdb53a8ffb [2025-03-14 00:54:27,232 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862fde5f9/6abd3c98f9854b8da10d6ab649b50ee1 [2025-03-14 00:54:27,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 00:54:27,236 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 00:54:27,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 00:54:27,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 00:54:27,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 00:54:27,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ba84f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27, skipping insertion in model container [2025-03-14 00:54:27,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,262 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 00:54:27,375 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/pthread-wmm/safe032_tso.i[945,958] [2025-03-14 00:54:27,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:54:27,481 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 00:54:27,489 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/pthread-wmm/safe032_tso.i[945,958] [2025-03-14 00:54:27,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:54:27,534 INFO L204 MainTranslator]: Completed translation [2025-03-14 00:54:27,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27 WrapperNode [2025-03-14 00:54:27,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 00:54:27,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 00:54:27,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 00:54:27,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 00:54:27,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,568 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2025-03-14 00:54:27,568 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 00:54:27,569 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 00:54:27,569 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 00:54:27,569 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 00:54:27,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,577 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,587 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]. [2025-03-14 00:54:27,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,591 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,592 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 00:54:27,595 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 00:54:27,595 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 00:54:27,595 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 00:54:27,596 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (1/1) ... [2025-03-14 00:54:27,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:54:27,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 00:54:27,633 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) [2025-03-14 00:54:27,639 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 [2025-03-14 00:54:27,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-14 00:54:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 00:54:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-14 00:54:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-14 00:54:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-14 00:54:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-14 00:54:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-14 00:54:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-14 00:54:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-14 00:54:27,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-14 00:54:27,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 00:54:27,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 00:54:27,666 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 00:54:27,774 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 00:54:27,776 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 00:54:27,946 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 00:54:27,947 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 00:54:27,947 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 00:54:28,062 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 00:54:28,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:54:28 BoogieIcfgContainer [2025-03-14 00:54:28,063 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 00:54:28,065 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 00:54:28,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 00:54:28,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 00:54:28,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 12:54:27" (1/3) ... [2025-03-14 00:54:28,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32643ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:54:28, skipping insertion in model container [2025-03-14 00:54:28,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:27" (2/3) ... [2025-03-14 00:54:28,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32643ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:54:28, skipping insertion in model container [2025-03-14 00:54:28,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:54:28" (3/3) ... [2025-03-14 00:54:28,073 INFO L128 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2025-03-14 00:54:28,084 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 00:54:28,086 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe032_tso.i that has 4 procedures, 40 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-14 00:54:28,087 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 00:54:28,125 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 00:54:28,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 40 transitions, 92 flow [2025-03-14 00:54:28,174 INFO L124 PetriNetUnfolderBase]: 1/37 cut-off events. [2025-03-14 00:54:28,176 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:54:28,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 37 events. 1/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2025-03-14 00:54:28,182 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 40 transitions, 92 flow [2025-03-14 00:54:28,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 34 transitions, 77 flow [2025-03-14 00:54:28,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 00:54:28,199 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;@78bf1a72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 00:54:28,199 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-14 00:54:28,211 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 00:54:28,211 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2025-03-14 00:54:28,211 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:54:28,212 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:54:28,212 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:54:28,212 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 00:54:28,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:54:28,216 INFO L85 PathProgramCache]: Analyzing trace with hash -197730267, now seen corresponding path program 1 times [2025-03-14 00:54:28,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:54:28,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472261132] [2025-03-14 00:54:28,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:54:28,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:54:28,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-14 00:54:28,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-14 00:54:28,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:54:28,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:54:28,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:54:28,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:54:28,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472261132] [2025-03-14 00:54:28,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472261132] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:54:28,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:54:28,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 00:54:28,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375031136] [2025-03-14 00:54:28,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:54:28,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-14 00:54:28,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:54:28,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-14 00:54:28,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-14 00:54:28,646 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2025-03-14 00:54:28,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:54:28,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:54:28,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2025-03-14 00:54:28,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:54:29,204 INFO L124 PetriNetUnfolderBase]: 4185/6547 cut-off events. [2025-03-14 00:54:29,205 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-03-14 00:54:29,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12816 conditions, 6547 events. 4185/6547 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 37883 event pairs, 818 based on Foata normal form. 294/6829 useless extension candidates. Maximal degree in co-relation 12805. Up to 3216 conditions per place. [2025-03-14 00:54:29,243 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 60 selfloop transitions, 5 changer transitions 1/71 dead transitions. [2025-03-14 00:54:29,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 71 transitions, 289 flow [2025-03-14 00:54:29,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-14 00:54:29,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-14 00:54:29,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2025-03-14 00:54:29,256 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65 [2025-03-14 00:54:29,257 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 77 flow. Second operand 4 states and 104 transitions. [2025-03-14 00:54:29,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 71 transitions, 289 flow [2025-03-14 00:54:29,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 71 transitions, 284 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-14 00:54:29,266 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 108 flow [2025-03-14 00:54:29,268 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2025-03-14 00:54:29,271 INFO L279 CegarLoopForPetriNet]: 44 programPoint places, 2 predicate places. [2025-03-14 00:54:29,271 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 108 flow [2025-03-14 00:54:29,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:54:29,271 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:54:29,271 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:54:29,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 00:54:29,272 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 00:54:29,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:54:29,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2016357797, now seen corresponding path program 1 times [2025-03-14 00:54:29,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:54:29,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47499738] [2025-03-14 00:54:29,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:54:29,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:54:29,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-14 00:54:29,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-14 00:54:29,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:54:29,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:54:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:54:29,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:54:29,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47499738] [2025-03-14 00:54:29,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47499738] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:54:29,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:54:29,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-14 00:54:29,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391950942] [2025-03-14 00:54:29,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:54:29,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-14 00:54:29,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:54:29,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-14 00:54:29,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-14 00:54:29,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2025-03-14 00:54:29,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:54:29,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:54:29,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2025-03-14 00:54:29,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:54:29,878 INFO L124 PetriNetUnfolderBase]: 2390/3742 cut-off events. [2025-03-14 00:54:29,879 INFO L125 PetriNetUnfolderBase]: For 695/695 co-relation queries the response was YES. [2025-03-14 00:54:29,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8559 conditions, 3742 events. 2390/3742 cut-off events. For 695/695 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 18796 event pairs, 536 based on Foata normal form. 194/3924 useless extension candidates. Maximal degree in co-relation 8547. Up to 1317 conditions per place. [2025-03-14 00:54:29,893 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 77 selfloop transitions, 8 changer transitions 1/91 dead transitions. [2025-03-14 00:54:29,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 91 transitions, 409 flow [2025-03-14 00:54:29,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-14 00:54:29,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-14 00:54:29,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2025-03-14 00:54:29,894 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.665 [2025-03-14 00:54:29,894 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 108 flow. Second operand 5 states and 133 transitions. [2025-03-14 00:54:29,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 91 transitions, 409 flow [2025-03-14 00:54:29,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 91 transitions, 399 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-14 00:54:29,897 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 148 flow [2025-03-14 00:54:29,898 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=148, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2025-03-14 00:54:29,898 INFO L279 CegarLoopForPetriNet]: 44 programPoint places, 6 predicate places. [2025-03-14 00:54:29,898 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 148 flow [2025-03-14 00:54:29,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:54:29,898 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:54:29,899 INFO L206 CegarLoopForPetriNet]: 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] [2025-03-14 00:54:29,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 00:54:29,899 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 00:54:29,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:54:29,899 INFO L85 PathProgramCache]: Analyzing trace with hash -65450386, now seen corresponding path program 1 times [2025-03-14 00:54:29,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:54:29,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389442303] [2025-03-14 00:54:29,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:54:29,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:54:29,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-14 00:54:29,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-14 00:54:29,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:54:29,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:54:30,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:54:30,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:54:30,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389442303] [2025-03-14 00:54:30,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389442303] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:54:30,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:54:30,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 00:54:30,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946151137] [2025-03-14 00:54:30,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:54:30,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 00:54:30,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:54:30,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 00:54:30,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-14 00:54:30,060 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2025-03-14 00:54:30,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:54:30,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:54:30,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2025-03-14 00:54:30,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:54:30,283 INFO L124 PetriNetUnfolderBase]: 1561/2391 cut-off events. [2025-03-14 00:54:30,284 INFO L125 PetriNetUnfolderBase]: For 1332/1332 co-relation queries the response was YES. [2025-03-14 00:54:30,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5919 conditions, 2391 events. 1561/2391 cut-off events. For 1332/1332 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 10781 event pairs, 487 based on Foata normal form. 64/2443 useless extension candidates. Maximal degree in co-relation 5905. Up to 918 conditions per place. [2025-03-14 00:54:30,295 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 64 selfloop transitions, 11 changer transitions 1/81 dead transitions. [2025-03-14 00:54:30,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 81 transitions, 392 flow [2025-03-14 00:54:30,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 00:54:30,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 00:54:30,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2025-03-14 00:54:30,297 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.55 [2025-03-14 00:54:30,297 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 148 flow. Second operand 6 states and 132 transitions. [2025-03-14 00:54:30,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 81 transitions, 392 flow [2025-03-14 00:54:30,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 81 transitions, 367 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-03-14 00:54:30,310 INFO L231 Difference]: Finished difference. Result has 53 places, 40 transitions, 162 flow [2025-03-14 00:54:30,310 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=162, PETRI_PLACES=53, PETRI_TRANSITIONS=40} [2025-03-14 00:54:30,311 INFO L279 CegarLoopForPetriNet]: 44 programPoint places, 9 predicate places. [2025-03-14 00:54:30,311 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 40 transitions, 162 flow [2025-03-14 00:54:30,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:54:30,311 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:54:30,311 INFO L206 CegarLoopForPetriNet]: 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] [2025-03-14 00:54:30,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 00:54:30,312 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-14 00:54:30,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:54:30,312 INFO L85 PathProgramCache]: Analyzing trace with hash -489683441, now seen corresponding path program 1 times [2025-03-14 00:54:30,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:54:30,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486690414] [2025-03-14 00:54:30,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:54:30,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:54:30,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-14 00:54:30,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-14 00:54:30,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:54:30,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:54:30,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:54:30,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:54:30,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486690414] [2025-03-14 00:54:30,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486690414] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:54:30,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:54:30,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-14 00:54:30,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267870500] [2025-03-14 00:54:30,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:54:30,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 00:54:30,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:54:30,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 00:54:30,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-14 00:54:30,487 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 40 [2025-03-14 00:54:30,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 162 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:54:30,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:54:30,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 40 [2025-03-14 00:54:30,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:54:31,177 INFO L124 PetriNetUnfolderBase]: 4157/6303 cut-off events. [2025-03-14 00:54:31,178 INFO L125 PetriNetUnfolderBase]: For 4492/4492 co-relation queries the response was YES. [2025-03-14 00:54:31,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15858 conditions, 6303 events. 4157/6303 cut-off events. For 4492/4492 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 33063 event pairs, 972 based on Foata normal form. 32/6324 useless extension candidates. Maximal degree in co-relation 15843. Up to 1943 conditions per place. [2025-03-14 00:54:31,199 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 0 selfloop transitions, 0 changer transitions 179/179 dead transitions. [2025-03-14 00:54:31,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 179 transitions, 1072 flow [2025-03-14 00:54:31,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 00:54:31,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 00:54:31,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 271 transitions. [2025-03-14 00:54:31,202 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45166666666666666 [2025-03-14 00:54:31,203 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 162 flow. Second operand 15 states and 271 transitions. [2025-03-14 00:54:31,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 179 transitions, 1072 flow [2025-03-14 00:54:31,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 179 transitions, 817 flow, removed 40 selfloop flow, removed 8 redundant places. [2025-03-14 00:54:31,235 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2025-03-14 00:54:31,235 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2025-03-14 00:54:31,236 INFO L279 CegarLoopForPetriNet]: 44 programPoint places, 13 predicate places. [2025-03-14 00:54:31,236 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2025-03-14 00:54:31,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:54:31,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-03-14 00:54:31,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-03-14 00:54:31,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-03-14 00:54:31,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-03-14 00:54:31,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 00:54:31,239 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-14 00:54:31,242 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 00:54:31,242 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 00:54:31,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 12:54:31 BasicIcfg [2025-03-14 00:54:31,248 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 00:54:31,251 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-14 00:54:31,251 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-14 00:54:31,251 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-14 00:54:31,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:54:28" (3/4) ... [2025-03-14 00:54:31,254 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-14 00:54:31,257 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-14 00:54:31,257 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-14 00:54:31,257 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-14 00:54:31,260 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2025-03-14 00:54:31,260 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-14 00:54:31,261 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-14 00:54:31,261 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-14 00:54:31,319 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-14 00:54:31,320 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-14 00:54:31,320 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-14 00:54:31,320 INFO L158 Benchmark]: Toolchain (without parser) took 4084.42ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 121.3MB in the beginning and 89.1MB in the end (delta: 32.2MB). Peak memory consumption was 158.1MB. Max. memory is 16.1GB. [2025-03-14 00:54:31,321 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:54:31,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.91ms. Allocated memory is still 167.8MB. Free memory was 121.3MB in the beginning and 101.2MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-14 00:54:31,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.81ms. Allocated memory is still 167.8MB. Free memory was 101.2MB in the beginning and 99.7MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 00:54:31,321 INFO L158 Benchmark]: Boogie Preprocessor took 25.60ms. Allocated memory is still 167.8MB. Free memory was 99.7MB in the beginning and 97.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:54:31,321 INFO L158 Benchmark]: IcfgBuilder took 467.82ms. Allocated memory is still 167.8MB. Free memory was 97.8MB in the beginning and 76.5MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-14 00:54:31,321 INFO L158 Benchmark]: TraceAbstraction took 3182.93ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 76.1MB in the beginning and 95.0MB in the end (delta: -18.9MB). Peak memory consumption was 107.8MB. Max. memory is 16.1GB. [2025-03-14 00:54:31,322 INFO L158 Benchmark]: Witness Printer took 68.96ms. Allocated memory is still 293.6MB. Free memory was 95.0MB in the beginning and 89.1MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 00:54:31,323 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.91ms. Allocated memory is still 167.8MB. Free memory was 121.3MB in the beginning and 101.2MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.81ms. Allocated memory is still 167.8MB. Free memory was 101.2MB in the beginning and 99.7MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.60ms. Allocated memory is still 167.8MB. Free memory was 99.7MB in the beginning and 97.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 467.82ms. Allocated memory is still 167.8MB. Free memory was 97.8MB in the beginning and 76.5MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3182.93ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 76.1MB in the beginning and 95.0MB in the end (delta: -18.9MB). Peak memory consumption was 107.8MB. Max. memory is 16.1GB. * Witness Printer took 68.96ms. Allocated memory is still 293.6MB. Free memory was 95.0MB in the beginning and 89.1MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 379 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 376 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 664 IncrementalHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 0 mSDtfsCounter, 664 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=3, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 337 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-14 00:54:31,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE