./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --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/weaver/parallel-ticket-3.wvr.c -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 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:15:52,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:15:52,620 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:15:52,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:15:52,625 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:15:52,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:15:52,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:15:52,646 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:15:52,646 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:15:52,646 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:15:52,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:15:52,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:15:52,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:15:52,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:15:52,647 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:15:52,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:15:52,648 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:15:52,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:15:52,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:15:52,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:15:52,649 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:15:52,649 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:15:52,649 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:15:52,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:15:52,649 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:15:52,649 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:15:52,649 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:15:52,649 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:15:52,649 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 -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2025-02-08 01:15:52,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:15:52,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:15:52,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:15:52,872 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:15:52,872 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:15:52,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2025-02-08 01:15:53,977 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2b4e15b94/9608b13a446140c8b621d54d6b393391/FLAG9e9037174 [2025-02-08 01:15:54,235 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:15:54,236 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2025-02-08 01:15:54,243 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2b4e15b94/9608b13a446140c8b621d54d6b393391/FLAG9e9037174 [2025-02-08 01:15:54,257 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2b4e15b94/9608b13a446140c8b621d54d6b393391 [2025-02-08 01:15:54,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:15:54,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:15:54,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:15:54,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:15:54,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:15:54,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28ad0ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54, skipping insertion in model container [2025-02-08 01:15:54,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:15:54,394 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/weaver/parallel-ticket-3.wvr.c[2331,2344] [2025-02-08 01:15:54,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:15:54,408 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:15:54,419 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/weaver/parallel-ticket-3.wvr.c[2331,2344] [2025-02-08 01:15:54,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:15:54,435 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:15:54,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54 WrapperNode [2025-02-08 01:15:54,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:15:54,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:15:54,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:15:54,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:15:54,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,467 INFO L138 Inliner]: procedures = 19, calls = 14, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 140 [2025-02-08 01:15:54,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:15:54,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:15:54,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:15:54,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:15:54,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,476 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,493 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 01:15:54,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,499 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:15:54,503 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:15:54,503 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:15:54,503 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:15:54,504 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (1/1) ... [2025-02-08 01:15:54,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:15:54,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:15:54,529 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 01:15:54,532 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 01:15:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:15:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 01:15:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 01:15:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 01:15:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 01:15:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 01:15:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 01:15:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:15:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:15:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:15:54,549 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 01:15:54,618 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:15:54,619 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:15:54,836 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:15:54,836 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:15:54,948 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:15:54,948 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:15:54,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:15:54 BoogieIcfgContainer [2025-02-08 01:15:54,949 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:15:54,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:15:54,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:15:54,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:15:54,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:15:54" (1/3) ... [2025-02-08 01:15:54,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ccbff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:15:54, skipping insertion in model container [2025-02-08 01:15:54,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:15:54" (2/3) ... [2025-02-08 01:15:54,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ccbff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:15:54, skipping insertion in model container [2025-02-08 01:15:54,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:15:54" (3/3) ... [2025-02-08 01:15:54,956 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2025-02-08 01:15:54,968 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:15:54,969 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-3.wvr.c that has 4 procedures, 46 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:15:54,969 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:15:55,020 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 01:15:55,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 47 transitions, 115 flow [2025-02-08 01:15:55,080 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2025-02-08 01:15:55,082 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 01:15:55,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 2/44 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2025-02-08 01:15:55,087 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 47 transitions, 115 flow [2025-02-08 01:15:55,090 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 43 transitions, 104 flow [2025-02-08 01:15:55,101 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:15:55,111 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;@183526e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:15:55,111 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 01:15:55,124 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:15:55,124 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2025-02-08 01:15:55,124 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 01:15:55,125 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:55,125 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:55,125 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:15:55,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:55,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1144268120, now seen corresponding path program 1 times [2025-02-08 01:15:55,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:55,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818127093] [2025-02-08 01:15:55,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:15:55,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:55,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-08 01:15:55,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-08 01:15:55,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:15:55,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:55,454 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 01:15:55,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:55,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818127093] [2025-02-08 01:15:55,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818127093] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:55,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:55,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:15:55,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533202810] [2025-02-08 01:15:55,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:55,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 01:15:55,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:55,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 01:15:55,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 01:15:55,482 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-08 01:15:55,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 01:15:55,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:55,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-08 01:15:55,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:55,840 INFO L124 PetriNetUnfolderBase]: 1948/3061 cut-off events. [2025-02-08 01:15:55,840 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2025-02-08 01:15:55,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6136 conditions, 3061 events. 1948/3061 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 16403 event pairs, 858 based on Foata normal form. 1/2959 useless extension candidates. Maximal degree in co-relation 5693. Up to 1547 conditions per place. [2025-02-08 01:15:55,862 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 51 selfloop transitions, 5 changer transitions 1/65 dead transitions. [2025-02-08 01:15:55,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 65 transitions, 274 flow [2025-02-08 01:15:55,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 01:15:55,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 01:15:55,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2025-02-08 01:15:55,872 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6453900709219859 [2025-02-08 01:15:55,873 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 104 flow. Second operand 3 states and 91 transitions. [2025-02-08 01:15:55,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 65 transitions, 274 flow [2025-02-08 01:15:55,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 65 transitions, 254 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-08 01:15:55,884 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 117 flow [2025-02-08 01:15:55,886 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2025-02-08 01:15:55,889 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2025-02-08 01:15:55,889 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 117 flow [2025-02-08 01:15:55,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 01:15:55,890 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:55,890 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:55,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:15:55,891 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:15:55,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:55,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1646980611, now seen corresponding path program 1 times [2025-02-08 01:15:55,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:55,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807473114] [2025-02-08 01:15:55,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:15:55,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:55,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-08 01:15:55,923 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 01:15:55,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:15:55,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:55,980 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 01:15:55,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:55,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807473114] [2025-02-08 01:15:55,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807473114] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:55,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:55,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:15:55,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246055809] [2025-02-08 01:15:55,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:55,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 01:15:55,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:55,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 01:15:55,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 01:15:55,985 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 47 [2025-02-08 01:15:55,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2025-02-08 01:15:55,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:55,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 47 [2025-02-08 01:15:55,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:56,243 INFO L124 PetriNetUnfolderBase]: 2293/3505 cut-off events. [2025-02-08 01:15:56,244 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2025-02-08 01:15:56,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7425 conditions, 3505 events. 2293/3505 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 17813 event pairs, 1673 based on Foata normal form. 0/3460 useless extension candidates. Maximal degree in co-relation 4808. Up to 3012 conditions per place. [2025-02-08 01:15:56,253 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 54 selfloop transitions, 7 changer transitions 0/65 dead transitions. [2025-02-08 01:15:56,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 65 transitions, 291 flow [2025-02-08 01:15:56,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 01:15:56,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 01:15:56,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2025-02-08 01:15:56,255 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5673758865248227 [2025-02-08 01:15:56,255 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 117 flow. Second operand 3 states and 80 transitions. [2025-02-08 01:15:56,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 65 transitions, 291 flow [2025-02-08 01:15:56,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 65 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 01:15:56,257 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 156 flow [2025-02-08 01:15:56,257 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2025-02-08 01:15:56,257 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2025-02-08 01:15:56,258 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 156 flow [2025-02-08 01:15:56,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 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) [2025-02-08 01:15:56,258 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:56,258 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:56,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:15:56,258 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:15:56,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:56,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1614351197, now seen corresponding path program 1 times [2025-02-08 01:15:56,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:56,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391047753] [2025-02-08 01:15:56,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:15:56,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:56,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-08 01:15:56,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 01:15:56,282 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:15:56,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:56,446 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 01:15:56,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:56,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391047753] [2025-02-08 01:15:56,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391047753] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:56,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:56,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:15:56,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933325296] [2025-02-08 01:15:56,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:56,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:15:56,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:56,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:15:56,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:15:56,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-08 01:15:56,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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 01:15:56,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:56,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-08 01:15:56,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:56,911 INFO L124 PetriNetUnfolderBase]: 2768/4506 cut-off events. [2025-02-08 01:15:56,911 INFO L125 PetriNetUnfolderBase]: For 1505/1509 co-relation queries the response was YES. [2025-02-08 01:15:56,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10349 conditions, 4506 events. 2768/4506 cut-off events. For 1505/1509 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 26685 event pairs, 604 based on Foata normal form. 26/4464 useless extension candidates. Maximal degree in co-relation 6384. Up to 1835 conditions per place. [2025-02-08 01:15:56,937 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 80 selfloop transitions, 21 changer transitions 3/114 dead transitions. [2025-02-08 01:15:56,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 114 transitions, 555 flow [2025-02-08 01:15:56,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:15:56,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:15:56,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2025-02-08 01:15:56,939 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5709219858156028 [2025-02-08 01:15:56,939 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 156 flow. Second operand 6 states and 161 transitions. [2025-02-08 01:15:56,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 114 transitions, 555 flow [2025-02-08 01:15:56,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 114 transitions, 529 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 01:15:56,950 INFO L231 Difference]: Finished difference. Result has 55 places, 62 transitions, 221 flow [2025-02-08 01:15:56,951 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=55, PETRI_TRANSITIONS=62} [2025-02-08 01:15:56,951 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 4 predicate places. [2025-02-08 01:15:56,952 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 62 transitions, 221 flow [2025-02-08 01:15:56,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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 01:15:56,952 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:56,952 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:56,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:15:56,952 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:15:56,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:56,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1941127511, now seen corresponding path program 2 times [2025-02-08 01:15:56,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:56,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857492454] [2025-02-08 01:15:56,953 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:15:56,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:56,960 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 1 equivalence classes. [2025-02-08 01:15:56,970 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 01:15:56,970 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:15:56,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:57,094 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 01:15:57,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:57,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857492454] [2025-02-08 01:15:57,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857492454] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:57,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:57,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:15:57,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848037695] [2025-02-08 01:15:57,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:57,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:15:57,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:57,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:15:57,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:15:57,096 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-08 01:15:57,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 62 transitions, 221 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:15:57,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:57,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-08 01:15:57,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:57,499 INFO L124 PetriNetUnfolderBase]: 3433/5678 cut-off events. [2025-02-08 01:15:57,500 INFO L125 PetriNetUnfolderBase]: For 2124/2132 co-relation queries the response was YES. [2025-02-08 01:15:57,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14048 conditions, 5678 events. 3433/5678 cut-off events. For 2124/2132 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 35889 event pairs, 926 based on Foata normal form. 62/5642 useless extension candidates. Maximal degree in co-relation 9317. Up to 1972 conditions per place. [2025-02-08 01:15:57,525 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 83 selfloop transitions, 23 changer transitions 11/127 dead transitions. [2025-02-08 01:15:57,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 127 transitions, 666 flow [2025-02-08 01:15:57,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:15:57,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:15:57,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2025-02-08 01:15:57,529 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6340425531914894 [2025-02-08 01:15:57,529 INFO L175 Difference]: Start difference. First operand has 55 places, 62 transitions, 221 flow. Second operand 5 states and 149 transitions. [2025-02-08 01:15:57,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 127 transitions, 666 flow [2025-02-08 01:15:57,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 127 transitions, 660 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 01:15:57,563 INFO L231 Difference]: Finished difference. Result has 60 places, 73 transitions, 346 flow [2025-02-08 01:15:57,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=346, PETRI_PLACES=60, PETRI_TRANSITIONS=73} [2025-02-08 01:15:57,564 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places. [2025-02-08 01:15:57,564 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 73 transitions, 346 flow [2025-02-08 01:15:57,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:15:57,564 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:57,564 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:57,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:15:57,564 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:15:57,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:57,565 INFO L85 PathProgramCache]: Analyzing trace with hash 279825805, now seen corresponding path program 2 times [2025-02-08 01:15:57,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:57,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132251359] [2025-02-08 01:15:57,565 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:15:57,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:57,574 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 1 equivalence classes. [2025-02-08 01:15:57,588 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 01:15:57,589 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:15:57,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:57,681 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 01:15:57,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:57,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132251359] [2025-02-08 01:15:57,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132251359] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:57,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:57,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:15:57,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878698812] [2025-02-08 01:15:57,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:57,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:15:57,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:57,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:15:57,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:15:57,683 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-08 01:15:57,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 73 transitions, 346 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:15:57,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:57,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-08 01:15:57,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:58,085 INFO L124 PetriNetUnfolderBase]: 2839/4780 cut-off events. [2025-02-08 01:15:58,085 INFO L125 PetriNetUnfolderBase]: For 4694/4694 co-relation queries the response was YES. [2025-02-08 01:15:58,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13479 conditions, 4780 events. 2839/4780 cut-off events. For 4694/4694 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 29806 event pairs, 785 based on Foata normal form. 78/4789 useless extension candidates. Maximal degree in co-relation 8741. Up to 1604 conditions per place. [2025-02-08 01:15:58,105 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 80 selfloop transitions, 24 changer transitions 12/126 dead transitions. [2025-02-08 01:15:58,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 126 transitions, 770 flow [2025-02-08 01:15:58,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:15:58,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:15:58,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 146 transitions. [2025-02-08 01:15:58,107 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6212765957446809 [2025-02-08 01:15:58,107 INFO L175 Difference]: Start difference. First operand has 60 places, 73 transitions, 346 flow. Second operand 5 states and 146 transitions. [2025-02-08 01:15:58,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 126 transitions, 770 flow [2025-02-08 01:15:58,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 126 transitions, 757 flow, removed 4 selfloop flow, removed 1 redundant places. [2025-02-08 01:15:58,112 INFO L231 Difference]: Finished difference. Result has 64 places, 74 transitions, 402 flow [2025-02-08 01:15:58,113 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=402, PETRI_PLACES=64, PETRI_TRANSITIONS=74} [2025-02-08 01:15:58,113 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 13 predicate places. [2025-02-08 01:15:58,114 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 74 transitions, 402 flow [2025-02-08 01:15:58,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:15:58,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:58,114 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:58,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 01:15:58,116 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:15:58,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:58,117 INFO L85 PathProgramCache]: Analyzing trace with hash 226470653, now seen corresponding path program 3 times [2025-02-08 01:15:58,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:58,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539267342] [2025-02-08 01:15:58,117 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 01:15:58,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:58,124 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 1 equivalence classes. [2025-02-08 01:15:58,131 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 01:15:58,132 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 01:15:58,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:58,237 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 01:15:58,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:58,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539267342] [2025-02-08 01:15:58,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539267342] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:58,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:58,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:15:58,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297709898] [2025-02-08 01:15:58,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:58,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:15:58,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:58,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:15:58,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:15:58,240 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-08 01:15:58,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 74 transitions, 402 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:15:58,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:58,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-08 01:15:58,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:58,489 INFO L124 PetriNetUnfolderBase]: 1303/2250 cut-off events. [2025-02-08 01:15:58,489 INFO L125 PetriNetUnfolderBase]: For 2599/2599 co-relation queries the response was YES. [2025-02-08 01:15:58,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6503 conditions, 2250 events. 1303/2250 cut-off events. For 2599/2599 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 12008 event pairs, 424 based on Foata normal form. 40/2273 useless extension candidates. Maximal degree in co-relation 5179. Up to 884 conditions per place. [2025-02-08 01:15:58,497 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 59 selfloop transitions, 23 changer transitions 17/109 dead transitions. [2025-02-08 01:15:58,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 109 transitions, 709 flow [2025-02-08 01:15:58,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:15:58,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:15:58,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 140 transitions. [2025-02-08 01:15:58,498 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5957446808510638 [2025-02-08 01:15:58,498 INFO L175 Difference]: Start difference. First operand has 64 places, 74 transitions, 402 flow. Second operand 5 states and 140 transitions. [2025-02-08 01:15:58,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 109 transitions, 709 flow [2025-02-08 01:15:58,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 109 transitions, 671 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 01:15:58,502 INFO L231 Difference]: Finished difference. Result has 66 places, 66 transitions, 379 flow [2025-02-08 01:15:58,502 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=379, PETRI_PLACES=66, PETRI_TRANSITIONS=66} [2025-02-08 01:15:58,503 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 15 predicate places. [2025-02-08 01:15:58,503 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 66 transitions, 379 flow [2025-02-08 01:15:58,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 01:15:58,503 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:58,503 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:58,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 01:15:58,504 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:15:58,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:58,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1343563209, now seen corresponding path program 4 times [2025-02-08 01:15:58,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:58,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680071449] [2025-02-08 01:15:58,504 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 01:15:58,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:58,510 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 40 statements into 2 equivalence classes. [2025-02-08 01:15:58,524 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 01:15:58,526 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 01:15:58,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:58,677 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 01:15:58,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:58,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680071449] [2025-02-08 01:15:58,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680071449] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:58,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:58,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:15:58,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294096818] [2025-02-08 01:15:58,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:58,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:15:58,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:58,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:15:58,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:15:58,678 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-08 01:15:58,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 66 transitions, 379 flow. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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 01:15:58,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:58,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-08 01:15:58,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:58,921 INFO L124 PetriNetUnfolderBase]: 1136/1959 cut-off events. [2025-02-08 01:15:58,922 INFO L125 PetriNetUnfolderBase]: For 2652/2652 co-relation queries the response was YES. [2025-02-08 01:15:58,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5805 conditions, 1959 events. 1136/1959 cut-off events. For 2652/2652 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 10204 event pairs, 331 based on Foata normal form. 16/1942 useless extension candidates. Maximal degree in co-relation 2255. Up to 750 conditions per place. [2025-02-08 01:15:58,928 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 62 selfloop transitions, 26 changer transitions 11/109 dead transitions. [2025-02-08 01:15:58,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 109 transitions, 717 flow [2025-02-08 01:15:58,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:15:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:15:58,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 157 transitions. [2025-02-08 01:15:58,929 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5567375886524822 [2025-02-08 01:15:58,929 INFO L175 Difference]: Start difference. First operand has 66 places, 66 transitions, 379 flow. Second operand 6 states and 157 transitions. [2025-02-08 01:15:58,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 109 transitions, 717 flow [2025-02-08 01:15:58,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 109 transitions, 683 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 01:15:58,933 INFO L231 Difference]: Finished difference. Result has 69 places, 64 transitions, 386 flow [2025-02-08 01:15:58,933 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2025-02-08 01:15:58,934 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 18 predicate places. [2025-02-08 01:15:58,934 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 386 flow [2025-02-08 01:15:58,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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 01:15:58,934 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:58,934 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:58,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 01:15:58,934 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:15:58,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:58,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1023494973, now seen corresponding path program 5 times [2025-02-08 01:15:58,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:58,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152760615] [2025-02-08 01:15:58,935 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 01:15:58,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:58,941 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 40 statements into 1 equivalence classes. [2025-02-08 01:15:58,945 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 01:15:58,945 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:15:58,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:59,026 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 01:15:59,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:59,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152760615] [2025-02-08 01:15:59,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152760615] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:59,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:59,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 01:15:59,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315467782] [2025-02-08 01:15:59,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:59,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:15:59,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:59,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:15:59,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:15:59,028 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-08 01:15:59,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 386 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 01:15:59,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:59,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-08 01:15:59,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:59,305 INFO L124 PetriNetUnfolderBase]: 1063/1841 cut-off events. [2025-02-08 01:15:59,305 INFO L125 PetriNetUnfolderBase]: For 3285/3285 co-relation queries the response was YES. [2025-02-08 01:15:59,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5440 conditions, 1841 events. 1063/1841 cut-off events. For 3285/3285 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 9519 event pairs, 317 based on Foata normal form. 16/1828 useless extension candidates. Maximal degree in co-relation 2174. Up to 676 conditions per place. [2025-02-08 01:15:59,312 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 60 selfloop transitions, 24 changer transitions 16/110 dead transitions. [2025-02-08 01:15:59,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 110 transitions, 736 flow [2025-02-08 01:15:59,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:15:59,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:15:59,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 183 transitions. [2025-02-08 01:15:59,314 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4867021276595745 [2025-02-08 01:15:59,314 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 386 flow. Second operand 8 states and 183 transitions. [2025-02-08 01:15:59,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 110 transitions, 736 flow [2025-02-08 01:15:59,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 110 transitions, 682 flow, removed 3 selfloop flow, removed 5 redundant places. [2025-02-08 01:15:59,320 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 369 flow [2025-02-08 01:15:59,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=369, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2025-02-08 01:15:59,323 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 21 predicate places. [2025-02-08 01:15:59,323 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 369 flow [2025-02-08 01:15:59,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 01:15:59,324 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:59,324 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:59,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 01:15:59,325 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:15:59,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:59,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1306071413, now seen corresponding path program 6 times [2025-02-08 01:15:59,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:59,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495980739] [2025-02-08 01:15:59,325 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 01:15:59,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:59,332 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 40 statements into 1 equivalence classes. [2025-02-08 01:15:59,341 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 01:15:59,341 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 01:15:59,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:59,437 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 01:15:59,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:59,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495980739] [2025-02-08 01:15:59,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495980739] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:59,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:59,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 01:15:59,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543543930] [2025-02-08 01:15:59,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:59,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:15:59,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:59,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:15:59,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:15:59,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-08 01:15:59,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 369 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 01:15:59,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:59,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-08 01:15:59,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:59,659 INFO L124 PetriNetUnfolderBase]: 731/1315 cut-off events. [2025-02-08 01:15:59,660 INFO L125 PetriNetUnfolderBase]: For 2275/2275 co-relation queries the response was YES. [2025-02-08 01:15:59,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3890 conditions, 1315 events. 731/1315 cut-off events. For 2275/2275 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6339 event pairs, 216 based on Foata normal form. 32/1334 useless extension candidates. Maximal degree in co-relation 1688. Up to 440 conditions per place. [2025-02-08 01:15:59,663 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 50 selfloop transitions, 14 changer transitions 33/105 dead transitions. [2025-02-08 01:15:59,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 105 transitions, 723 flow [2025-02-08 01:15:59,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:15:59,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:15:59,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 182 transitions. [2025-02-08 01:15:59,665 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48404255319148937 [2025-02-08 01:15:59,665 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 369 flow. Second operand 8 states and 182 transitions. [2025-02-08 01:15:59,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 105 transitions, 723 flow [2025-02-08 01:15:59,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 105 transitions, 657 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-02-08 01:15:59,670 INFO L231 Difference]: Finished difference. Result has 71 places, 48 transitions, 247 flow [2025-02-08 01:15:59,670 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=247, PETRI_PLACES=71, PETRI_TRANSITIONS=48} [2025-02-08 01:15:59,671 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2025-02-08 01:15:59,671 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 48 transitions, 247 flow [2025-02-08 01:15:59,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 01:15:59,671 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:15:59,671 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:15:59,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 01:15:59,672 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:15:59,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:15:59,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1025325347, now seen corresponding path program 3 times [2025-02-08 01:15:59,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:15:59,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007378960] [2025-02-08 01:15:59,672 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 01:15:59,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:15:59,677 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 1 equivalence classes. [2025-02-08 01:15:59,680 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 01:15:59,681 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 01:15:59,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:15:59,755 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 01:15:59,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:15:59,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007378960] [2025-02-08 01:15:59,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007378960] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:15:59,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:15:59,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 01:15:59,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917380280] [2025-02-08 01:15:59,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:15:59,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:15:59,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:15:59,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:15:59,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:15:59,756 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2025-02-08 01:15:59,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 48 transitions, 247 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 01:15:59,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:15:59,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2025-02-08 01:15:59,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:15:59,888 INFO L124 PetriNetUnfolderBase]: 185/377 cut-off events. [2025-02-08 01:15:59,888 INFO L125 PetriNetUnfolderBase]: For 421/421 co-relation queries the response was YES. [2025-02-08 01:15:59,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 377 events. 185/377 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1311 event pairs, 60 based on Foata normal form. 32/407 useless extension candidates. Maximal degree in co-relation 689. Up to 125 conditions per place. [2025-02-08 01:15:59,889 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2025-02-08 01:15:59,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 68 transitions, 429 flow [2025-02-08 01:15:59,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:15:59,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:15:59,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 153 transitions. [2025-02-08 01:15:59,890 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40691489361702127 [2025-02-08 01:15:59,890 INFO L175 Difference]: Start difference. First operand has 71 places, 48 transitions, 247 flow. Second operand 8 states and 153 transitions. [2025-02-08 01:15:59,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 68 transitions, 429 flow [2025-02-08 01:15:59,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 68 transitions, 338 flow, removed 11 selfloop flow, removed 13 redundant places. [2025-02-08 01:15:59,892 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2025-02-08 01:15:59,892 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2025-02-08 01:15:59,893 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2025-02-08 01:15:59,893 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2025-02-08 01:15:59,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 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 01:15:59,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-02-08 01:15:59,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-02-08 01:15:59,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-08 01:15:59,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-02-08 01:15:59,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 01:15:59,896 INFO L422 BasicCegarLoop]: Path program histogram: [6, 3, 1] [2025-02-08 01:15:59,900 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:15:59,900 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:15:59,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:15:59 BasicIcfg [2025-02-08 01:15:59,907 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:15:59,907 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:15:59,907 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:15:59,907 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:15:59,908 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:15:54" (3/4) ... [2025-02-08 01:15:59,909 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:15:59,912 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 01:15:59,912 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 01:15:59,912 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 01:15:59,915 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-02-08 01:15:59,916 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-08 01:15:59,916 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 01:15:59,916 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 01:15:59,972 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:15:59,973 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:15:59,973 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:15:59,973 INFO L158 Benchmark]: Toolchain (without parser) took 5713.05ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 104.4MB in the beginning and 163.7MB in the end (delta: -59.3MB). Peak memory consumption was 119.4MB. Max. memory is 16.1GB. [2025-02-08 01:15:59,974 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:15:59,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.97ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 92.6MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 01:15:59,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.95ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 90.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:15:59,975 INFO L158 Benchmark]: Boogie Preprocessor took 33.91ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 89.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:15:59,975 INFO L158 Benchmark]: IcfgBuilder took 446.25ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 60.1MB in the end (delta: 29.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 01:15:59,975 INFO L158 Benchmark]: TraceAbstraction took 4956.13ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 59.0MB in the beginning and 168.7MB in the end (delta: -109.6MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2025-02-08 01:15:59,976 INFO L158 Benchmark]: Witness Printer took 65.67ms. Allocated memory is still 318.8MB. Free memory was 168.7MB in the beginning and 163.7MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:15:59,977 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 173.97ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 92.6MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.95ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 90.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.91ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 89.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 446.25ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 60.1MB in the end (delta: 29.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4956.13ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 59.0MB in the beginning and 168.7MB in the end (delta: -109.6MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. * Witness Printer took 65.67ms. Allocated memory is still 318.8MB. Free memory was 168.7MB in the beginning and 163.7MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 94]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 73 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 396 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 390 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1723 IncrementalHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 4 mSDtfsCounter, 1723 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=5, InterpolantAutomatonStates: 57, 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, 1.2s InterpolantComputationTime, 399 NumberOfCodeBlocks, 399 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 923 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 01:15:59,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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