./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 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe036.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-48c9605-m [2025-02-08 01:06:25,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:06:25,865 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:06:25,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:06:25,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:06:25,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:06:25,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:06:25,909 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:06:25,910 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:06:25,910 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:06:25,910 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:06:25,910 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:06:25,910 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:06:25,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:06:25,910 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:06:25,911 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:06:25,911 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:06:25,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:06:25,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:06:25,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:06:25,912 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:06:25,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:06:25,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:06:25,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:06:25,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:06:25,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:06:25,912 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:06:25,912 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:06:25,912 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-jdk21/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 [2025-02-08 01:06:26,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:06:26,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:06:26,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:06:26,228 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:06:26,228 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:06:26,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe036.i [2025-02-08 01:06:27,485 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/05584fd83/a283d68b53524e8da3c689e541cd7a01/FLAGa9f0247c7 [2025-02-08 01:06:27,834 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:06:27,836 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe036.i [2025-02-08 01:06:27,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/05584fd83/a283d68b53524e8da3c689e541cd7a01/FLAGa9f0247c7 [2025-02-08 01:06:28,083 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/05584fd83/a283d68b53524e8da3c689e541cd7a01 [2025-02-08 01:06:28,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:06:28,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:06:28,091 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:06:28,091 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:06:28,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:06:28,099 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10fb068a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28, skipping insertion in model container [2025-02-08 01:06:28,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:06:28,256 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe036.i[941,954] [2025-02-08 01:06:28,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:06:28,381 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:06:28,389 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe036.i[941,954] [2025-02-08 01:06:28,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:06:28,436 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:06:28,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28 WrapperNode [2025-02-08 01:06:28,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:06:28,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:06:28,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:06:28,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:06:28,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,460 INFO L138 Inliner]: procedures = 174, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 50 [2025-02-08 01:06:28,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:06:28,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:06:28,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:06:28,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:06:28,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,468 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,475 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]. [2025-02-08 01:06:28,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,478 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:06:28,485 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:06:28,486 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:06:28,486 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:06:28,486 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (1/1) ... [2025-02-08 01:06:28,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:06:28,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:06:28,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:06:28,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:06:28,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 01:06:28,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:06:28,544 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 01:06:28,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 01:06:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 01:06:28,551 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 01:06:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:06:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 01:06:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:06:28,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:06:28,553 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 01:06:28,648 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:06:28,650 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:06:28,750 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:06:28,751 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:06:28,819 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:06:28,820 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:06:28,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:06:28 BoogieIcfgContainer [2025-02-08 01:06:28,821 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:06:28,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:06:28,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:06:28,826 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:06:28,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:06:28" (1/3) ... [2025-02-08 01:06:28,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1c2ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:06:28, skipping insertion in model container [2025-02-08 01:06:28,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:28" (2/3) ... [2025-02-08 01:06:28,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1c2ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:06:28, skipping insertion in model container [2025-02-08 01:06:28,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:06:28" (3/3) ... [2025-02-08 01:06:28,829 INFO L128 eAbstractionObserver]: Analyzing ICFG safe036.i [2025-02-08 01:06:28,839 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:06:28,841 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. [2025-02-08 01:06:28,841 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:06:28,872 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 01:06:28,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 70 flow [2025-02-08 01:06:28,915 INFO L124 PetriNetUnfolderBase]: 1/29 cut-off events. [2025-02-08 01:06:28,920 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:06:28,922 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. [2025-02-08 01:06:28,925 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 31 transitions, 70 flow [2025-02-08 01:06:28,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 58 flow [2025-02-08 01:06:28,934 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:06:28,944 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;@da39a11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:06:28,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-02-08 01:06:28,951 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:06:28,951 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-02-08 01:06:28,951 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:06:28,951 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:28,952 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:06:28,952 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:06:28,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:28,956 INFO L85 PathProgramCache]: Analyzing trace with hash -350873407, now seen corresponding path program 1 times [2025-02-08 01:06:28,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:28,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879911100] [2025-02-08 01:06:28,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:28,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:29,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 01:06:29,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 01:06:29,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:29,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:29,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:29,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:29,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879911100] [2025-02-08 01:06:29,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879911100] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:29,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:29,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:06:29,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629711092] [2025-02-08 01:06:29,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:29,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:06:29,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:29,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:06:29,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:06:29,380 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2025-02-08 01:06:29,381 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) [2025-02-08 01:06:29,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:29,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2025-02-08 01:06:29,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:29,566 INFO L124 PetriNetUnfolderBase]: 362/695 cut-off events. [2025-02-08 01:06:29,566 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 01:06:29,568 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 33. Compared 3089 event pairs, 110 based on Foata normal form. 49/743 useless extension candidates. Maximal degree in co-relation 1349. Up to 291 conditions per place. [2025-02-08 01:06:29,572 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 43 selfloop transitions, 4 changer transitions 1/52 dead transitions. [2025-02-08 01:06:29,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 52 transitions, 209 flow [2025-02-08 01:06:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:06:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 01:06:29,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2025-02-08 01:06:29,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6290322580645161 [2025-02-08 01:06:29,581 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 58 flow. Second operand 4 states and 78 transitions. [2025-02-08 01:06:29,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 52 transitions, 209 flow [2025-02-08 01:06:29,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 52 transitions, 206 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 01:06:29,588 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 82 flow [2025-02-08 01:06:29,589 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} [2025-02-08 01:06:29,593 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2025-02-08 01:06:29,593 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 82 flow [2025-02-08 01:06:29,593 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) [2025-02-08 01:06:29,593 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:29,593 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:06:29,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:06:29,594 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:06:29,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:29,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1886423064, now seen corresponding path program 1 times [2025-02-08 01:06:29,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:29,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252535969] [2025-02-08 01:06:29,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:29,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:29,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 01:06:29,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 01:06:29,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:29,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:29,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:29,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:29,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252535969] [2025-02-08 01:06:29,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252535969] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:29,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:29,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:06:29,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453663006] [2025-02-08 01:06:29,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:29,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:06:29,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:29,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:06:29,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:06:29,701 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2025-02-08 01:06:29,701 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) [2025-02-08 01:06:29,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:29,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2025-02-08 01:06:29,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:29,810 INFO L124 PetriNetUnfolderBase]: 182/350 cut-off events. [2025-02-08 01:06:29,810 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2025-02-08 01:06:29,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 350 events. 182/350 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1192 event pairs, 74 based on Foata normal form. 24/373 useless extension candidates. Maximal degree in co-relation 811. Up to 146 conditions per place. [2025-02-08 01:06:29,813 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 34 selfloop transitions, 6 changer transitions 1/45 dead transitions. [2025-02-08 01:06:29,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 203 flow [2025-02-08 01:06:29,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:06:29,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:06:29,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2025-02-08 01:06:29,814 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5032258064516129 [2025-02-08 01:06:29,814 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 82 flow. Second operand 5 states and 78 transitions. [2025-02-08 01:06:29,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 203 flow [2025-02-08 01:06:29,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 45 transitions, 194 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 01:06:29,816 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 98 flow [2025-02-08 01:06:29,816 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} [2025-02-08 01:06:29,816 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2025-02-08 01:06:29,817 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 98 flow [2025-02-08 01:06:29,817 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) [2025-02-08 01:06:29,817 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:29,817 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] [2025-02-08 01:06:29,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:06:29,817 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:06:29,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:29,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1803746525, now seen corresponding path program 1 times [2025-02-08 01:06:29,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:29,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214981304] [2025-02-08 01:06:29,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:29,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:29,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 01:06:29,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 01:06:29,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:29,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:29,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:29,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:29,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214981304] [2025-02-08 01:06:29,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214981304] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:29,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:29,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:06:29,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862906191] [2025-02-08 01:06:29,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:29,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:06:29,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:29,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:06:29,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:06:29,986 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 31 [2025-02-08 01:06:29,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 98 flow. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2025-02-08 01:06:29,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:29,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 31 [2025-02-08 01:06:29,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:30,173 INFO L124 PetriNetUnfolderBase]: 228/439 cut-off events. [2025-02-08 01:06:30,173 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2025-02-08 01:06:30,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 439 events. 228/439 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1639 event pairs, 40 based on Foata normal form. 4/443 useless extension candidates. Maximal degree in co-relation 1072. Up to 258 conditions per place. [2025-02-08 01:06:30,178 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 28 selfloop transitions, 1 changer transitions 25/57 dead transitions. [2025-02-08 01:06:30,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 57 transitions, 306 flow [2025-02-08 01:06:30,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:06:30,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:06:30,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 81 transitions. [2025-02-08 01:06:30,179 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43548387096774194 [2025-02-08 01:06:30,179 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 98 flow. Second operand 6 states and 81 transitions. [2025-02-08 01:06:30,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 57 transitions, 306 flow [2025-02-08 01:06:30,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 57 transitions, 249 flow, removed 10 selfloop flow, removed 6 redundant places. [2025-02-08 01:06:30,183 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 81 flow [2025-02-08 01:06:30,183 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} [2025-02-08 01:06:30,184 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2025-02-08 01:06:30,184 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 81 flow [2025-02-08 01:06:30,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2025-02-08 01:06:30,184 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:30,184 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] [2025-02-08 01:06:30,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:06:30,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 01:06:30,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:30,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1901497315, now seen corresponding path program 2 times [2025-02-08 01:06:30,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:30,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094601561] [2025-02-08 01:06:30,185 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:06:30,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:30,195 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-02-08 01:06:30,199 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 01:06:30,199 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:06:30,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:30,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:30,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:30,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094601561] [2025-02-08 01:06:30,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094601561] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:30,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:30,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:06:30,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856025093] [2025-02-08 01:06:30,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:30,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:06:30,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:30,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:06:30,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:06:30,305 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 31 [2025-02-08 01:06:30,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 81 flow. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2025-02-08 01:06:30,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:30,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 31 [2025-02-08 01:06:30,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:30,435 INFO L124 PetriNetUnfolderBase]: 152/304 cut-off events. [2025-02-08 01:06:30,435 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2025-02-08 01:06:30,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 304 events. 152/304 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1031 event pairs, 36 based on Foata normal form. 4/307 useless extension candidates. Maximal degree in co-relation 682. Up to 128 conditions per place. [2025-02-08 01:06:30,436 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2025-02-08 01:06:30,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 208 flow [2025-02-08 01:06:30,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:06:30,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:06:30,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 72 transitions. [2025-02-08 01:06:30,437 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3870967741935484 [2025-02-08 01:06:30,437 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 81 flow. Second operand 6 states and 72 transitions. [2025-02-08 01:06:30,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 208 flow [2025-02-08 01:06:30,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 202 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-02-08 01:06:30,438 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2025-02-08 01:06:30,438 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} [2025-02-08 01:06:30,439 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2025-02-08 01:06:30,439 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2025-02-08 01:06:30,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2025-02-08 01:06:30,441 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-02-08 01:06:30,441 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-02-08 01:06:30,441 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-02-08 01:06:30,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:06:30,441 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2025-02-08 01:06:30,444 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:06:30,444 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:06:30,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:06:30 BasicIcfg [2025-02-08 01:06:30,449 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:06:30,450 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:06:30,450 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:06:30,450 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:06:30,451 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:06:28" (3/4) ... [2025-02-08 01:06:30,453 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:06:30,455 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 01:06:30,455 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 01:06:30,458 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-02-08 01:06:30,458 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-02-08 01:06:30,458 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-08 01:06:30,458 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 01:06:30,514 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:06:30,514 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:06:30,514 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:06:30,515 INFO L158 Benchmark]: Toolchain (without parser) took 2428.33ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 111.7MB in the beginning and 307.8MB in the end (delta: -196.1MB). Peak memory consumption was 86.7MB. Max. memory is 16.1GB. [2025-02-08 01:06:30,515 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:06:30,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.01ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 91.9MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 01:06:30,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.64ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 90.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:06:30,515 INFO L158 Benchmark]: Boogie Preprocessor took 19.57ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 88.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:06:30,515 INFO L158 Benchmark]: IcfgBuilder took 335.69ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 70.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 01:06:30,516 INFO L158 Benchmark]: TraceAbstraction took 1625.99ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 69.9MB in the beginning and 312.6MB in the end (delta: -242.7MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2025-02-08 01:06:30,516 INFO L158 Benchmark]: Witness Printer took 64.05ms. Allocated memory is still 427.8MB. Free memory was 312.6MB in the beginning and 307.8MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:06:30,517 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.01ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 91.9MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.64ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 90.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.57ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 88.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 335.69ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 70.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1625.99ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 69.9MB in the beginning and 312.6MB in the end (delta: -242.7MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. * Witness Printer took 64.05ms. Allocated memory is still 427.8MB. Free memory was 312.6MB in the beginning and 307.8MB in the end (delta: 4.8MB). 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, 150 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 145 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 449 IncrementalHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 5 mSDtfsCounter, 449 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, 0.1s 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! [2025-02-08 01:06:30,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE