./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe036.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/safe036.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 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 00:54:35,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 00:54:35,148 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-14 00:54:35,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 00:54:35,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 00:54:35,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 00:54:35,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 00:54:35,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 00:54:35,178 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-14 00:54:35,178 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-14 00:54:35,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 00:54:35,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 00:54:35,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 00:54:35,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 00:54:35,179 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 00:54:35,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 00:54:35,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 00:54:35,180 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 00:54:35,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 00:54:35,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 00:54:35,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 00:54:35,180 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 00:54:35,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 00:54:35,180 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 00:54:35,180 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 00:54:35,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 00:54:35,180 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 00:54:35,180 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 00:54:35,181 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 00:54:35,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 00:54:35,181 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-14 00:54:35,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 00:54:35,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:54:35,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 00:54:35,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 00:54:35,181 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 00:54:35,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 00:54:35,182 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 00:54:35,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 00:54:35,182 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 00:54:35,182 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 00:54:35,182 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 00:54:35,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 00:54:35,182 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 -> 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a [2025-03-14 00:54:35,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 00:54:35,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 00:54:35,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 00:54:35,429 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 00:54:35,430 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 00:54:35,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe036.i [2025-03-14 00:54:36,571 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c755651e0/395eee51e54c49798832b4f6ad442dc4/FLAG0c42d3fcb [2025-03-14 00:54:36,854 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 00:54:36,854 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe036.i [2025-03-14 00:54:36,868 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c755651e0/395eee51e54c49798832b4f6ad442dc4/FLAG0c42d3fcb [2025-03-14 00:54:37,140 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c755651e0/395eee51e54c49798832b4f6ad442dc4 [2025-03-14 00:54:37,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 00:54:37,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 00:54:37,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 00:54:37,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 00:54:37,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 00:54:37,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74879232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37, skipping insertion in model container [2025-03-14 00:54:37,148 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 00:54:37,286 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/safe036.i[941,954] [2025-03-14 00:54:37,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:54:37,408 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 00:54:37,415 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/safe036.i[941,954] [2025-03-14 00:54:37,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:54:37,473 INFO L204 MainTranslator]: Completed translation [2025-03-14 00:54:37,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37 WrapperNode [2025-03-14 00:54:37,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 00:54:37,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 00:54:37,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 00:54:37,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 00:54:37,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,502 INFO L138 Inliner]: procedures = 174, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 50 [2025-03-14 00:54:37,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 00:54:37,503 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 00:54:37,503 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 00:54:37,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 00:54:37,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,511 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,525 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 00:54:37,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,529 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 00:54:37,534 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 00:54:37,534 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 00:54:37,534 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 00:54:37,535 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (1/1) ... [2025-03-14 00:54:37,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:54:37,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 00:54:37,565 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 00:54:37,570 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 00:54:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-14 00:54:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 00:54:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-14 00:54:37,583 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-14 00:54:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-14 00:54:37,583 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-14 00:54:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-14 00:54:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-14 00:54:37,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 00:54:37,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 00:54:37,584 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 00:54:37,666 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 00:54:37,668 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 00:54:37,779 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 00:54:37,780 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 00:54:37,781 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 00:54:37,866 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 00:54:37,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:54:37 BoogieIcfgContainer [2025-03-14 00:54:37,868 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 00:54:37,870 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 00:54:37,870 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 00:54:37,873 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 00:54:37,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 12:54:37" (1/3) ... [2025-03-14 00:54:37,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6d6e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:54:37, skipping insertion in model container [2025-03-14 00:54:37,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:54:37" (2/3) ... [2025-03-14 00:54:37,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6d6e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:54:37, skipping insertion in model container [2025-03-14 00:54:37,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:54:37" (3/3) ... [2025-03-14 00:54:37,876 INFO L128 eAbstractionObserver]: Analyzing ICFG safe036.i [2025-03-14 00:54:37,890 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 00:54:37,893 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe036.i that has 3 procedures, 31 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-14 00:54:37,893 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 00:54:37,942 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 00:54:37,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 70 flow [2025-03-14 00:54:37,994 INFO L124 PetriNetUnfolderBase]: 1/29 cut-off events. [2025-03-14 00:54:37,996 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:54:37,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 29 events. 1/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2025-03-14 00:54:37,998 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 31 transitions, 70 flow [2025-03-14 00:54:38,001 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 58 flow [2025-03-14 00:54:38,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 00:54:38,020 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;@273e1af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 00:54:38,021 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-14 00:54:38,036 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 00:54:38,036 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-14 00:54:38,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:54:38,037 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:54:38,037 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:54:38,040 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 00:54:38,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:54:38,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1462082134, now seen corresponding path program 1 times [2025-03-14 00:54:38,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:54:38,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145844406] [2025-03-14 00:54:38,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:54:38,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:54:38,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-14 00:54:38,152 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-14 00:54:38,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:54:38,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:54:38,407 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 00:54:38,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:54:38,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145844406] [2025-03-14 00:54:38,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145844406] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:54:38,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:54:38,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 00:54:38,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389250788] [2025-03-14 00:54:38,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:54:38,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-14 00:54:38,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:54:38,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-14 00:54:38,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-14 00:54:38,438 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2025-03-14 00:54:38,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 00:54:38,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:54:38,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2025-03-14 00:54:38,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:54:38,618 INFO L124 PetriNetUnfolderBase]: 362/695 cut-off events. [2025-03-14 00:54:38,619 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-14 00:54:38,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1359 conditions, 695 events. 362/695 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3085 event pairs, 110 based on Foata normal form. 49/741 useless extension candidates. Maximal degree in co-relation 1349. Up to 291 conditions per place. [2025-03-14 00:54:38,626 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 43 selfloop transitions, 4 changer transitions 1/52 dead transitions. [2025-03-14 00:54:38,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 52 transitions, 209 flow [2025-03-14 00:54:38,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-14 00:54:38,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-14 00:54:38,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2025-03-14 00:54:38,638 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6290322580645161 [2025-03-14 00:54:38,639 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 58 flow. Second operand 4 states and 78 transitions. [2025-03-14 00:54:38,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 52 transitions, 209 flow [2025-03-14 00:54:38,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 52 transitions, 206 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 00:54:38,644 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 82 flow [2025-03-14 00:54:38,645 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2025-03-14 00:54:38,648 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2025-03-14 00:54:38,648 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 82 flow [2025-03-14 00:54:38,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 00:54:38,648 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:54:38,648 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:54:38,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 00:54:38,649 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 00:54:38,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:54:38,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1487606869, now seen corresponding path program 1 times [2025-03-14 00:54:38,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:54:38,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207790509] [2025-03-14 00:54:38,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:54:38,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:54:38,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-14 00:54:38,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-14 00:54:38,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:54:38,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:54:38,775 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 00:54:38,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:54:38,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207790509] [2025-03-14 00:54:38,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207790509] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:54:38,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:54:38,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-14 00:54:38,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722478619] [2025-03-14 00:54:38,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:54:38,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-14 00:54:38,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:54:38,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-14 00:54:38,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-14 00:54:38,778 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2025-03-14 00:54:38,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 00:54:38,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:54:38,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2025-03-14 00:54:38,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:54:38,911 INFO L124 PetriNetUnfolderBase]: 182/350 cut-off events. [2025-03-14 00:54:38,911 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2025-03-14 00:54:38,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 350 events. 182/350 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1179 event pairs, 74 based on Foata normal form. 24/371 useless extension candidates. Maximal degree in co-relation 811. Up to 146 conditions per place. [2025-03-14 00:54:38,916 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 34 selfloop transitions, 6 changer transitions 1/45 dead transitions. [2025-03-14 00:54:38,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 203 flow [2025-03-14 00:54:38,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-14 00:54:38,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-14 00:54:38,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2025-03-14 00:54:38,917 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5032258064516129 [2025-03-14 00:54:38,917 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 82 flow. Second operand 5 states and 78 transitions. [2025-03-14 00:54:38,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 203 flow [2025-03-14 00:54:38,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 45 transitions, 194 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-14 00:54:38,919 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 98 flow [2025-03-14 00:54:38,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=98, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2025-03-14 00:54:38,920 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2025-03-14 00:54:38,920 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 98 flow [2025-03-14 00:54:38,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 00:54:38,920 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:54:38,920 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] [2025-03-14 00:54:38,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 00:54:38,920 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 00:54:38,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:54:38,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1476347060, now seen corresponding path program 1 times [2025-03-14 00:54:38,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:54:38,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870811494] [2025-03-14 00:54:38,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:54:38,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:54:38,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-14 00:54:38,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-14 00:54:38,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:54:38,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:54:39,097 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 00:54:39,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:54:39,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870811494] [2025-03-14 00:54:39,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870811494] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:54:39,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:54:39,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 00:54:39,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863900013] [2025-03-14 00:54:39,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:54:39,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 00:54:39,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:54:39,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 00:54:39,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-14 00:54:39,106 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31 [2025-03-14 00:54:39,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 98 flow. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 00:54:39,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:54:39,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31 [2025-03-14 00:54:39,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:54:39,266 INFO L124 PetriNetUnfolderBase]: 228/440 cut-off events. [2025-03-14 00:54:39,266 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2025-03-14 00:54:39,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1087 conditions, 440 events. 228/440 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1604 event pairs, 36 based on Foata normal form. 4/441 useless extension candidates. Maximal degree in co-relation 1073. Up to 234 conditions per place. [2025-03-14 00:54:39,268 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 28 selfloop transitions, 1 changer transitions 23/55 dead transitions. [2025-03-14 00:54:39,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 55 transitions, 296 flow [2025-03-14 00:54:39,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 00:54:39,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 00:54:39,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 85 transitions. [2025-03-14 00:54:39,269 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45698924731182794 [2025-03-14 00:54:39,269 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 98 flow. Second operand 6 states and 85 transitions. [2025-03-14 00:54:39,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 55 transitions, 296 flow [2025-03-14 00:54:39,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 55 transitions, 239 flow, removed 10 selfloop flow, removed 6 redundant places. [2025-03-14 00:54:39,272 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 81 flow [2025-03-14 00:54:39,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2025-03-14 00:54:39,272 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2025-03-14 00:54:39,272 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 81 flow [2025-03-14 00:54:39,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 00:54:39,272 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:54:39,272 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] [2025-03-14 00:54:39,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 00:54:39,273 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 00:54:39,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:54:39,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1247526866, now seen corresponding path program 2 times [2025-03-14 00:54:39,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:54:39,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352549108] [2025-03-14 00:54:39,273 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 00:54:39,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:54:39,280 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-03-14 00:54:39,289 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-14 00:54:39,292 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 00:54:39,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:54:39,405 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 00:54:39,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:54:39,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352549108] [2025-03-14 00:54:39,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352549108] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:54:39,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:54:39,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 00:54:39,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634439611] [2025-03-14 00:54:39,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:54:39,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 00:54:39,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:54:39,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 00:54:39,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-14 00:54:39,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 31 [2025-03-14 00:54:39,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 81 flow. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 00:54:39,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:54:39,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 31 [2025-03-14 00:54:39,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:54:39,566 INFO L124 PetriNetUnfolderBase]: 152/303 cut-off events. [2025-03-14 00:54:39,567 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2025-03-14 00:54:39,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 303 events. 152/303 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1038 event pairs, 24 based on Foata normal form. 4/305 useless extension candidates. Maximal degree in co-relation 681. Up to 134 conditions per place. [2025-03-14 00:54:39,568 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2025-03-14 00:54:39,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 47 transitions, 218 flow [2025-03-14 00:54:39,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 00:54:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 00:54:39,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 80 transitions. [2025-03-14 00:54:39,570 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43010752688172044 [2025-03-14 00:54:39,570 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 81 flow. Second operand 6 states and 80 transitions. [2025-03-14 00:54:39,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 47 transitions, 218 flow [2025-03-14 00:54:39,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 47 transitions, 212 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-03-14 00:54:39,573 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2025-03-14 00:54:39,573 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2025-03-14 00:54:39,573 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2025-03-14 00:54:39,573 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2025-03-14 00:54:39,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 00:54:39,577 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-03-14 00:54:39,577 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-03-14 00:54:39,578 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-03-14 00:54:39,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 00:54:39,579 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-03-14 00:54:39,583 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 00:54:39,583 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 00:54:39,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 12:54:39 BasicIcfg [2025-03-14 00:54:39,586 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 00:54:39,587 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-14 00:54:39,587 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-14 00:54:39,590 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-14 00:54:39,590 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:54:37" (3/4) ... [2025-03-14 00:54:39,592 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-14 00:54:39,594 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-14 00:54:39,594 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-14 00:54:39,596 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-03-14 00:54:39,596 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-14 00:54:39,596 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-14 00:54:39,596 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-14 00:54:39,641 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-14 00:54:39,642 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-14 00:54:39,642 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-14 00:54:39,642 INFO L158 Benchmark]: Toolchain (without parser) took 2499.52ms. Allocated memory is still 201.3MB. Free memory was 156.2MB in the beginning and 129.6MB in the end (delta: 26.6MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2025-03-14 00:54:39,643 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:54:39,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.39ms. Allocated memory is still 201.3MB. Free memory was 155.8MB in the beginning and 136.0MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-14 00:54:39,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.29ms. Allocated memory is still 201.3MB. Free memory was 136.0MB in the beginning and 134.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:54:39,643 INFO L158 Benchmark]: Boogie Preprocessor took 30.39ms. Allocated memory is still 201.3MB. Free memory was 134.6MB in the beginning and 133.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:54:39,643 INFO L158 Benchmark]: IcfgBuilder took 333.77ms. Allocated memory is still 201.3MB. Free memory was 133.1MB in the beginning and 112.1MB in the end (delta: 21.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-14 00:54:39,643 INFO L158 Benchmark]: TraceAbstraction took 1716.67ms. Allocated memory is still 201.3MB. Free memory was 111.7MB in the beginning and 134.6MB in the end (delta: -22.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:54:39,644 INFO L158 Benchmark]: Witness Printer took 54.79ms. Allocated memory is still 201.3MB. Free memory was 134.6MB in the beginning and 129.6MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:54:39,645 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.39ms. Allocated memory is still 201.3MB. Free memory was 155.8MB in the beginning and 136.0MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.29ms. Allocated memory is still 201.3MB. Free memory was 136.0MB in the beginning and 134.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.39ms. Allocated memory is still 201.3MB. Free memory was 134.6MB in the beginning and 133.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 333.77ms. Allocated memory is still 201.3MB. Free memory was 133.1MB in the beginning and 112.1MB in the end (delta: 21.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1716.67ms. Allocated memory is still 201.3MB. Free memory was 111.7MB in the beginning and 134.6MB in the end (delta: -22.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 54.79ms. Allocated memory is still 201.3MB. Free memory was 134.6MB in the beginning and 129.6MB in the end (delta: 5.0MB). There was no memory consumed. 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 5 procedures, 49 locations, 3 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: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 160 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 154 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464 IncrementalHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=2, InterpolantAutomatonStates: 21, 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, 0.6s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 250 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 00:54:39,656 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