./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe024_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe024_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f830c559346dfed293d38cb3f451f57bf45496349320c2696ae4150a4c0c44e9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:05:38,273 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:05:38,333 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:05:38,336 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:05:38,337 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:05:38,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:05:38,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:05:38,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:05:38,357 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:05:38,358 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:05:38,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:05:38,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:05:38,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:05:38,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:05:38,359 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:05:38,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:05:38,360 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:05:38,360 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:05:38,360 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:05:38,360 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:05:38,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:05:38,360 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:05:38,360 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:05:38,360 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:05:38,360 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:05:38,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:05:38,360 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:05:38,360 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:05:38,361 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:05:38,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:05:38,361 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:05:38,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:05:38,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:05:38,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:05:38,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:05:38,362 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:05:38,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:05:38,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:05:38,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:05:38,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:05:38,362 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:05:38,362 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:05:38,362 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:05:38,362 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 -> f830c559346dfed293d38cb3f451f57bf45496349320c2696ae4150a4c0c44e9 [2025-02-08 01:05:38,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:05:38,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:05:38,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:05:38,599 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:05:38,599 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:05:38,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe024_tso.i [2025-02-08 01:05:39,714 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ead53d0be/dad6e97bc68e4cdea1550cc016bed615/FLAG9c3243bf3 [2025-02-08 01:05:40,001 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:05:40,002 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe024_tso.i [2025-02-08 01:05:40,012 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ead53d0be/dad6e97bc68e4cdea1550cc016bed615/FLAG9c3243bf3 [2025-02-08 01:05:40,022 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ead53d0be/dad6e97bc68e4cdea1550cc016bed615 [2025-02-08 01:05:40,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:05:40,025 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:05:40,026 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:05:40,026 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:05:40,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:05:40,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eed5d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40, skipping insertion in model container [2025-02-08 01:05:40,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,071 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:05:40,187 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe024_tso.i[945,958] [2025-02-08 01:05:40,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:05:40,318 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:05:40,327 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe024_tso.i[945,958] [2025-02-08 01:05:40,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:05:40,388 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:05:40,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40 WrapperNode [2025-02-08 01:05:40,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:05:40,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:05:40,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:05:40,390 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:05:40,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,405 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,420 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2025-02-08 01:05:40,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:05:40,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:05:40,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:05:40,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:05:40,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,429 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,441 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 01:05:40,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,443 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,446 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:05:40,453 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:05:40,453 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:05:40,453 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:05:40,455 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (1/1) ... [2025-02-08 01:05:40,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:05:40,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:05:40,482 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 01:05:40,492 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 01:05:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 01:05:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:05:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 01:05:40,509 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 01:05:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 01:05:40,509 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 01:05:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 01:05:40,509 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 01:05:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:05:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 01:05:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:05:40,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:05:40,510 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 01:05:40,609 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:05:40,610 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:05:40,797 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:05:40,801 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:05:40,858 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:05:40,859 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:05:40,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:05:40 BoogieIcfgContainer [2025-02-08 01:05:40,859 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:05:40,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:05:40,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:05:40,864 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:05:40,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:05:40" (1/3) ... [2025-02-08 01:05:40,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b0e274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:05:40, skipping insertion in model container [2025-02-08 01:05:40,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:05:40" (2/3) ... [2025-02-08 01:05:40,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b0e274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:05:40, skipping insertion in model container [2025-02-08 01:05:40,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:05:40" (3/3) ... [2025-02-08 01:05:40,865 INFO L128 eAbstractionObserver]: Analyzing ICFG safe024_tso.i [2025-02-08 01:05:40,876 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:05:40,877 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe024_tso.i that has 4 procedures, 39 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:05:40,877 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:05:40,913 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 01:05:40,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 39 transitions, 90 flow [2025-02-08 01:05:40,979 INFO L124 PetriNetUnfolderBase]: 1/36 cut-off events. [2025-02-08 01:05:40,982 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:05:40,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2025-02-08 01:05:40,986 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 39 transitions, 90 flow [2025-02-08 01:05:40,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 75 flow [2025-02-08 01:05:40,998 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:05:41,010 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;@41c7fe60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:05:41,011 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 01:05:41,025 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:05:41,025 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2025-02-08 01:05:41,025 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:05:41,025 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:05:41,027 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:05:41,027 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 01:05:41,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:05:41,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1235865743, now seen corresponding path program 1 times [2025-02-08 01:05:41,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:05:41,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313986107] [2025-02-08 01:05:41,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:05:41,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:05:41,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 01:05:41,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 01:05:41,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:05:41,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:05:41,400 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 01:05:41,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:05:41,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313986107] [2025-02-08 01:05:41,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313986107] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:05:41,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:05:41,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:05:41,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001449806] [2025-02-08 01:05:41,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:05:41,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:05:41,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:05:41,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:05:41,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:05:41,438 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-02-08 01:05:41,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:05:41,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:05:41,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-02-08 01:05:41,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:05:42,204 INFO L124 PetriNetUnfolderBase]: 5876/8684 cut-off events. [2025-02-08 01:05:42,204 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2025-02-08 01:05:42,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17230 conditions, 8684 events. 5876/8684 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 48231 event pairs, 1718 based on Foata normal form. 252/8933 useless extension candidates. Maximal degree in co-relation 17219. Up to 6591 conditions per place. [2025-02-08 01:05:42,247 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 43 selfloop transitions, 3 changer transitions 53/103 dead transitions. [2025-02-08 01:05:42,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 103 transitions, 419 flow [2025-02-08 01:05:42,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:05:42,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 01:05:42,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 150 transitions. [2025-02-08 01:05:42,258 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5494505494505495 [2025-02-08 01:05:42,259 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 7 states and 150 transitions. [2025-02-08 01:05:42,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 103 transitions, 419 flow [2025-02-08 01:05:42,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 103 transitions, 414 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 01:05:42,266 INFO L231 Difference]: Finished difference. Result has 51 places, 35 transitions, 107 flow [2025-02-08 01:05:42,268 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=107, PETRI_PLACES=51, PETRI_TRANSITIONS=35} [2025-02-08 01:05:42,271 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 8 predicate places. [2025-02-08 01:05:42,271 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 35 transitions, 107 flow [2025-02-08 01:05:42,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:05:42,271 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:05:42,271 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:05:42,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:05:42,271 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 01:05:42,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:05:42,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1584734928, now seen corresponding path program 1 times [2025-02-08 01:05:42,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:05:42,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561435838] [2025-02-08 01:05:42,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:05:42,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:05:42,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 01:05:42,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 01:05:42,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:05:42,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:05:42,468 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 01:05:42,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:05:42,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561435838] [2025-02-08 01:05:42,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561435838] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:05:42,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:05:42,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:05:42,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791400909] [2025-02-08 01:05:42,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:05:42,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:05:42,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:05:42,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:05:42,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:05:42,472 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-02-08 01:05:42,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 35 transitions, 107 flow. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 01:05:42,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:05:42,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-02-08 01:05:42,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:05:43,320 INFO L124 PetriNetUnfolderBase]: 6363/9267 cut-off events. [2025-02-08 01:05:43,320 INFO L125 PetriNetUnfolderBase]: For 5064/5068 co-relation queries the response was YES. [2025-02-08 01:05:43,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22034 conditions, 9267 events. 6363/9267 cut-off events. For 5064/5068 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 50916 event pairs, 753 based on Foata normal form. 238/9502 useless extension candidates. Maximal degree in co-relation 22019. Up to 4781 conditions per place. [2025-02-08 01:05:43,357 INFO L140 encePairwiseOnDemand]: 31/39 looper letters, 79 selfloop transitions, 11 changer transitions 94/188 dead transitions. [2025-02-08 01:05:43,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 188 transitions, 913 flow [2025-02-08 01:05:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 01:05:43,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 01:05:43,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 277 transitions. [2025-02-08 01:05:43,359 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5463510848126233 [2025-02-08 01:05:43,359 INFO L175 Difference]: Start difference. First operand has 51 places, 35 transitions, 107 flow. Second operand 13 states and 277 transitions. [2025-02-08 01:05:43,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 188 transitions, 913 flow [2025-02-08 01:05:43,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 188 transitions, 884 flow, removed 12 selfloop flow, removed 3 redundant places. [2025-02-08 01:05:43,401 INFO L231 Difference]: Finished difference. Result has 67 places, 43 transitions, 224 flow [2025-02-08 01:05:43,401 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=224, PETRI_PLACES=67, PETRI_TRANSITIONS=43} [2025-02-08 01:05:43,401 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 24 predicate places. [2025-02-08 01:05:43,401 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 43 transitions, 224 flow [2025-02-08 01:05:43,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 01:05:43,402 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:05:43,402 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:05:43,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:05:43,402 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 01:05:43,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:05:43,402 INFO L85 PathProgramCache]: Analyzing trace with hash -187496007, now seen corresponding path program 1 times [2025-02-08 01:05:43,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:05:43,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287975888] [2025-02-08 01:05:43,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:05:43,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:05:43,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 01:05:43,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 01:05:43,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:05:43,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:05:43,510 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 01:05:43,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:05:43,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287975888] [2025-02-08 01:05:43,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287975888] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:05:43,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:05:43,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:05:43,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259507556] [2025-02-08 01:05:43,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:05:43,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:05:43,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:05:43,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:05:43,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:05:43,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-02-08 01:05:43,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 43 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 01:05:43,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:05:43,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-02-08 01:05:43,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:05:44,261 INFO L124 PetriNetUnfolderBase]: 7381/10769 cut-off events. [2025-02-08 01:05:44,261 INFO L125 PetriNetUnfolderBase]: For 31118/31126 co-relation queries the response was YES. [2025-02-08 01:05:44,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33486 conditions, 10769 events. 7381/10769 cut-off events. For 31118/31126 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 58954 event pairs, 1705 based on Foata normal form. 322/11088 useless extension candidates. Maximal degree in co-relation 33461. Up to 3817 conditions per place. [2025-02-08 01:05:44,296 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 51 selfloop transitions, 5 changer transitions 101/161 dead transitions. [2025-02-08 01:05:44,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 161 transitions, 1086 flow [2025-02-08 01:05:44,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 01:05:44,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 01:05:44,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 215 transitions. [2025-02-08 01:05:44,298 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2025-02-08 01:05:44,298 INFO L175 Difference]: Start difference. First operand has 67 places, 43 transitions, 224 flow. Second operand 10 states and 215 transitions. [2025-02-08 01:05:44,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 161 transitions, 1086 flow [2025-02-08 01:05:44,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 161 transitions, 966 flow, removed 55 selfloop flow, removed 7 redundant places. [2025-02-08 01:05:44,367 INFO L231 Difference]: Finished difference. Result has 69 places, 37 transitions, 179 flow [2025-02-08 01:05:44,367 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=179, PETRI_PLACES=69, PETRI_TRANSITIONS=37} [2025-02-08 01:05:44,367 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 26 predicate places. [2025-02-08 01:05:44,367 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 37 transitions, 179 flow [2025-02-08 01:05:44,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 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 01:05:44,368 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:05:44,368 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:05:44,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:05:44,368 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 01:05:44,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:05:44,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1300177172, now seen corresponding path program 1 times [2025-02-08 01:05:44,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:05:44,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119157060] [2025-02-08 01:05:44,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:05:44,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:05:44,373 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 01:05:44,378 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 01:05:44,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:05:44,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:05:44,435 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 01:05:44,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:05:44,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119157060] [2025-02-08 01:05:44,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119157060] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:05:44,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:05:44,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:05:44,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421326876] [2025-02-08 01:05:44,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:05:44,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:05:44,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:05:44,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:05:44,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:05:44,437 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 39 [2025-02-08 01:05:44,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 37 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:05:44,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:05:44,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 39 [2025-02-08 01:05:44,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:05:44,700 INFO L124 PetriNetUnfolderBase]: 2563/4053 cut-off events. [2025-02-08 01:05:44,700 INFO L125 PetriNetUnfolderBase]: For 9643/9643 co-relation queries the response was YES. [2025-02-08 01:05:44,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12287 conditions, 4053 events. 2563/4053 cut-off events. For 9643/9643 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 21349 event pairs, 399 based on Foata normal form. 182/4232 useless extension candidates. Maximal degree in co-relation 12259. Up to 2031 conditions per place. [2025-02-08 01:05:44,719 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 65 selfloop transitions, 5 changer transitions 1/76 dead transitions. [2025-02-08 01:05:44,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 76 transitions, 499 flow [2025-02-08 01:05:44,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:05:44,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 01:05:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2025-02-08 01:05:44,721 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6474358974358975 [2025-02-08 01:05:44,721 INFO L175 Difference]: Start difference. First operand has 69 places, 37 transitions, 179 flow. Second operand 4 states and 101 transitions. [2025-02-08 01:05:44,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 76 transitions, 499 flow [2025-02-08 01:05:44,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 443 flow, removed 16 selfloop flow, removed 11 redundant places. [2025-02-08 01:05:44,740 INFO L231 Difference]: Finished difference. Result has 57 places, 40 transitions, 181 flow [2025-02-08 01:05:44,740 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=181, PETRI_PLACES=57, PETRI_TRANSITIONS=40} [2025-02-08 01:05:44,740 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2025-02-08 01:05:44,740 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 40 transitions, 181 flow [2025-02-08 01:05:44,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:05:44,740 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:05:44,741 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] [2025-02-08 01:05:44,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:05:44,741 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 01:05:44,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:05:44,741 INFO L85 PathProgramCache]: Analyzing trace with hash -263832637, now seen corresponding path program 1 times [2025-02-08 01:05:44,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:05:44,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754967461] [2025-02-08 01:05:44,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:05:44,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:05:44,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 01:05:44,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 01:05:44,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:05:44,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:05:44,826 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 01:05:44,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:05:44,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754967461] [2025-02-08 01:05:44,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754967461] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:05:44,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:05:44,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:05:44,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949209071] [2025-02-08 01:05:44,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:05:44,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:05:44,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:05:44,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:05:44,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:05:44,827 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 39 [2025-02-08 01:05:44,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 40 transitions, 181 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 01:05:44,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:05:44,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 39 [2025-02-08 01:05:44,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:05:45,054 INFO L124 PetriNetUnfolderBase]: 1581/2533 cut-off events. [2025-02-08 01:05:45,054 INFO L125 PetriNetUnfolderBase]: For 3714/3714 co-relation queries the response was YES. [2025-02-08 01:05:45,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7476 conditions, 2533 events. 1581/2533 cut-off events. For 3714/3714 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11942 event pairs, 253 based on Foata normal form. 132/2662 useless extension candidates. Maximal degree in co-relation 7455. Up to 804 conditions per place. [2025-02-08 01:05:45,068 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 75 selfloop transitions, 8 changer transitions 1/89 dead transitions. [2025-02-08 01:05:45,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 89 transitions, 552 flow [2025-02-08 01:05:45,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:05:45,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:05:45,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 125 transitions. [2025-02-08 01:05:45,069 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410256410256411 [2025-02-08 01:05:45,069 INFO L175 Difference]: Start difference. First operand has 57 places, 40 transitions, 181 flow. Second operand 5 states and 125 transitions. [2025-02-08 01:05:45,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 89 transitions, 552 flow [2025-02-08 01:05:45,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 89 transitions, 526 flow, removed 7 selfloop flow, removed 4 redundant places. [2025-02-08 01:05:45,075 INFO L231 Difference]: Finished difference. Result has 59 places, 43 transitions, 212 flow [2025-02-08 01:05:45,075 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=59, PETRI_TRANSITIONS=43} [2025-02-08 01:05:45,075 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 16 predicate places. [2025-02-08 01:05:45,075 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 43 transitions, 212 flow [2025-02-08 01:05:45,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 01:05:45,075 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:05:45,076 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:05:45,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 01:05:45,076 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 01:05:45,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:05:45,076 INFO L85 PathProgramCache]: Analyzing trace with hash 662625991, now seen corresponding path program 1 times [2025-02-08 01:05:45,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:05:45,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096079465] [2025-02-08 01:05:45,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:05:45,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:05:45,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 01:05:45,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 01:05:45,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:05:45,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:05:45,172 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 01:05:45,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:05:45,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096079465] [2025-02-08 01:05:45,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096079465] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:05:45,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:05:45,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:05:45,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890898209] [2025-02-08 01:05:45,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:05:45,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:05:45,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:05:45,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:05:45,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:05:45,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 39 [2025-02-08 01:05:45,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 43 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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 01:05:45,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:05:45,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 39 [2025-02-08 01:05:45,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:05:45,359 INFO L124 PetriNetUnfolderBase]: 997/1577 cut-off events. [2025-02-08 01:05:45,359 INFO L125 PetriNetUnfolderBase]: For 2428/2428 co-relation queries the response was YES. [2025-02-08 01:05:45,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4798 conditions, 1577 events. 997/1577 cut-off events. For 2428/2428 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 6644 event pairs, 223 based on Foata normal form. 52/1626 useless extension candidates. Maximal degree in co-relation 4777. Up to 572 conditions per place. [2025-02-08 01:05:45,367 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 65 selfloop transitions, 11 changer transitions 1/82 dead transitions. [2025-02-08 01:05:45,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 82 transitions, 509 flow [2025-02-08 01:05:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:05:45,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:05:45,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2025-02-08 01:05:45,368 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5427350427350427 [2025-02-08 01:05:45,368 INFO L175 Difference]: Start difference. First operand has 59 places, 43 transitions, 212 flow. Second operand 6 states and 127 transitions. [2025-02-08 01:05:45,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 82 transitions, 509 flow [2025-02-08 01:05:45,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 82 transitions, 464 flow, removed 10 selfloop flow, removed 5 redundant places. [2025-02-08 01:05:45,373 INFO L231 Difference]: Finished difference. Result has 61 places, 43 transitions, 210 flow [2025-02-08 01:05:45,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=210, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2025-02-08 01:05:45,374 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 18 predicate places. [2025-02-08 01:05:45,374 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 210 flow [2025-02-08 01:05:45,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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 01:05:45,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:05:45,374 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] [2025-02-08 01:05:45,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 01:05:45,374 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 01:05:45,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:05:45,375 INFO L85 PathProgramCache]: Analyzing trace with hash -154639766, now seen corresponding path program 1 times [2025-02-08 01:05:45,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:05:45,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057512055] [2025-02-08 01:05:45,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:05:45,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:05:45,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 01:05:45,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 01:05:45,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:05:45,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:05:45,506 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 01:05:45,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:05:45,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057512055] [2025-02-08 01:05:45,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057512055] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:05:45,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:05:45,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 01:05:45,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678006607] [2025-02-08 01:05:45,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:05:45,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:05:45,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:05:45,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:05:45,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:05:45,511 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-02-08 01:05:45,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 43 transitions, 210 flow. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:05:45,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:05:45,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-02-08 01:05:45,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:05:45,767 INFO L124 PetriNetUnfolderBase]: 1401/2206 cut-off events. [2025-02-08 01:05:45,767 INFO L125 PetriNetUnfolderBase]: For 2982/2982 co-relation queries the response was YES. [2025-02-08 01:05:45,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6595 conditions, 2206 events. 1401/2206 cut-off events. For 2982/2982 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 9785 event pairs, 202 based on Foata normal form. 8/2211 useless extension candidates. Maximal degree in co-relation 6574. Up to 1150 conditions per place. [2025-02-08 01:05:45,775 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 43 selfloop transitions, 3 changer transitions 48/98 dead transitions. [2025-02-08 01:05:45,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 98 transitions, 619 flow [2025-02-08 01:05:45,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:05:45,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:05:45,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 138 transitions. [2025-02-08 01:05:45,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4423076923076923 [2025-02-08 01:05:45,777 INFO L175 Difference]: Start difference. First operand has 61 places, 43 transitions, 210 flow. Second operand 8 states and 138 transitions. [2025-02-08 01:05:45,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 98 transitions, 619 flow [2025-02-08 01:05:45,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 98 transitions, 490 flow, removed 26 selfloop flow, removed 10 redundant places. [2025-02-08 01:05:45,784 INFO L231 Difference]: Finished difference. Result has 61 places, 39 transitions, 132 flow [2025-02-08 01:05:45,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=132, PETRI_PLACES=61, PETRI_TRANSITIONS=39} [2025-02-08 01:05:45,785 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 18 predicate places. [2025-02-08 01:05:45,785 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 39 transitions, 132 flow [2025-02-08 01:05:45,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:05:45,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:05:45,785 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] [2025-02-08 01:05:45,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 01:05:45,785 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 01:05:45,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:05:45,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1489934638, now seen corresponding path program 2 times [2025-02-08 01:05:45,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:05:45,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686043227] [2025-02-08 01:05:45,786 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:05:45,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:05:45,793 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 1 equivalence classes. [2025-02-08 01:05:45,797 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 01:05:45,797 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:05:45,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:05:45,896 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 01:05:45,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:05:45,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686043227] [2025-02-08 01:05:45,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686043227] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:05:45,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:05:45,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:05:45,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26373695] [2025-02-08 01:05:45,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:05:45,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:05:45,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:05:45,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:05:45,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:05:45,904 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-02-08 01:05:45,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 39 transitions, 132 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 01:05:45,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:05:45,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-02-08 01:05:45,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:05:46,051 INFO L124 PetriNetUnfolderBase]: 530/856 cut-off events. [2025-02-08 01:05:46,051 INFO L125 PetriNetUnfolderBase]: For 242/242 co-relation queries the response was YES. [2025-02-08 01:05:46,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2113 conditions, 856 events. 530/856 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2893 event pairs, 108 based on Foata normal form. 8/863 useless extension candidates. Maximal degree in co-relation 2104. Up to 444 conditions per place. [2025-02-08 01:05:46,053 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2025-02-08 01:05:46,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 57 transitions, 286 flow [2025-02-08 01:05:46,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:05:46,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:05:46,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 89 transitions. [2025-02-08 01:05:46,054 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3803418803418803 [2025-02-08 01:05:46,054 INFO L175 Difference]: Start difference. First operand has 61 places, 39 transitions, 132 flow. Second operand 6 states and 89 transitions. [2025-02-08 01:05:46,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 57 transitions, 286 flow [2025-02-08 01:05:46,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 57 transitions, 266 flow, removed 5 selfloop flow, removed 8 redundant places. [2025-02-08 01:05:46,057 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2025-02-08 01:05:46,057 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2025-02-08 01:05:46,057 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 8 predicate places. [2025-02-08 01:05:46,057 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2025-02-08 01:05:46,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 01:05:46,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-02-08 01:05:46,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-02-08 01:05:46,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-08 01:05:46,060 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-02-08 01:05:46,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 01:05:46,060 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2025-02-08 01:05:46,062 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:05:46,062 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:05:46,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:05:46 BasicIcfg [2025-02-08 01:05:46,066 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:05:46,066 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:05:46,066 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:05:46,066 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:05:46,067 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:05:40" (3/4) ... [2025-02-08 01:05:46,068 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:05:46,070 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 01:05:46,070 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 01:05:46,070 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 01:05:46,073 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-02-08 01:05:46,073 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 01:05:46,073 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 01:05:46,073 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 01:05:46,123 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:05:46,123 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:05:46,123 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:05:46,124 INFO L158 Benchmark]: Toolchain (without parser) took 6099.05ms. Allocated memory was 142.6MB in the beginning and 822.1MB in the end (delta: 679.5MB). Free memory was 105.2MB in the beginning and 241.3MB in the end (delta: -136.1MB). Peak memory consumption was 546.1MB. Max. memory is 16.1GB. [2025-02-08 01:05:46,124 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:05:46,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.23ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 84.6MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 01:05:46,124 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.92ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 82.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:05:46,124 INFO L158 Benchmark]: Boogie Preprocessor took 30.94ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 81.6MB in the end (delta: 986.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:05:46,124 INFO L158 Benchmark]: IcfgBuilder took 405.82ms. Allocated memory is still 142.6MB. Free memory was 81.6MB in the beginning and 60.9MB in the end (delta: 20.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 01:05:46,125 INFO L158 Benchmark]: TraceAbstraction took 5205.13ms. Allocated memory was 142.6MB in the beginning and 822.1MB in the end (delta: 679.5MB). Free memory was 60.9MB in the beginning and 246.8MB in the end (delta: -185.9MB). Peak memory consumption was 495.8MB. Max. memory is 16.1GB. [2025-02-08 01:05:46,125 INFO L158 Benchmark]: Witness Printer took 56.98ms. Allocated memory is still 822.1MB. Free memory was 246.8MB in the beginning and 241.3MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:05:46,126 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 126.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.23ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 84.6MB in the end (delta: 19.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.92ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 82.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.94ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 81.6MB in the end (delta: 986.8kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 405.82ms. Allocated memory is still 142.6MB. Free memory was 81.6MB in the beginning and 60.9MB in the end (delta: 20.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5205.13ms. Allocated memory was 142.6MB in the beginning and 822.1MB in the end (delta: 679.5MB). Free memory was 60.9MB in the beginning and 246.8MB in the end (delta: -185.9MB). Peak memory consumption was 495.8MB. Max. memory is 16.1GB. * Witness Printer took 56.98ms. Allocated memory is still 822.1MB. Free memory was 246.8MB in the beginning and 241.3MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 64 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: 5.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 728 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 722 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1333 IncrementalHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 6 mSDtfsCounter, 1333 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224occurred in iteration=2, InterpolantAutomatonStates: 59, 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, 1.0s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 687 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 01:05:46,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE