/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-14 00:03:06,352 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 00:03:06,394 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-14 00:03:06,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 00:03:06,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 00:03:06,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 00:03:06,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 00:03:06,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 00:03:06,420 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-14 00:03:06,420 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-14 00:03:06,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 00:03:06,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 00:03:06,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 00:03:06,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 00:03:06,421 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 00:03:06,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 00:03:06,421 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 00:03:06,421 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 00:03:06,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 00:03:06,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 00:03:06,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 00:03:06,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 00:03:06,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 00:03:06,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 00:03:06,424 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:03:06,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:03:06,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 00:03:06,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 00:03:06,425 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 00:03:06,425 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 00:03:06,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 00:03:06,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 00:03:06,425 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-14 00:03:06,425 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-14 00:03:06,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 00:03:06,425 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> PETRI_NET Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-14 00:03:06,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 00:03:06,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 00:03:06,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 00:03:06,670 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 00:03:06,672 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 00:03:06,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i [2025-04-14 00:03:08,023 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8780cd452/88e6b05aeb554125a8fe6b1a9695b3e2/FLAGfa461b828 [2025-04-14 00:03:08,255 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 00:03:08,257 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i [2025-04-14 00:03:08,268 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8780cd452/88e6b05aeb554125a8fe6b1a9695b3e2/FLAGfa461b828 [2025-04-14 00:03:09,225 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8780cd452/88e6b05aeb554125a8fe6b1a9695b3e2 [2025-04-14 00:03:09,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 00:03:09,228 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 00:03:09,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 00:03:09,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 00:03:09,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 00:03:09,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38354d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09, skipping insertion in model container [2025-04-14 00:03:09,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 00:03:09,427 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i[966,979] [2025-04-14 00:03:09,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:03:09,607 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 00:03:09,630 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i[966,979] [2025-04-14 00:03:09,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:03:09,697 INFO L204 MainTranslator]: Completed translation [2025-04-14 00:03:09,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09 WrapperNode [2025-04-14 00:03:09,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 00:03:09,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 00:03:09,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 00:03:09,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 00:03:09,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,751 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2025-04-14 00:03:09,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 00:03:09,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 00:03:09,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 00:03:09,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 00:03:09,761 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,763 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,785 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]. [2025-04-14 00:03:09,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,792 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 00:03:09,811 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 00:03:09,811 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 00:03:09,811 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 00:03:09,812 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (1/1) ... [2025-04-14 00:03:09,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:03:09,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:03:09,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-14 00:03:09,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-14 00:03:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-14 00:03:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 00:03:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-14 00:03:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-14 00:03:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-14 00:03:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-14 00:03:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-04-14 00:03:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-04-14 00:03:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-04-14 00:03:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-04-14 00:03:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-14 00:03:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-14 00:03:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 00:03:09,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 00:03:09,868 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 00:03:09,976 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 00:03:09,978 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 00:03:10,253 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 00:03:10,256 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 00:03:10,256 INFO L318 CfgBuilder]: Performing block encoding [2025-04-14 00:03:10,519 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 00:03:10,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:03:10 BoogieIcfgContainer [2025-04-14 00:03:10,520 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 00:03:10,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 00:03:10,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 00:03:10,525 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 00:03:10,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:03:09" (1/3) ... [2025-04-14 00:03:10,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204ee5ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:03:10, skipping insertion in model container [2025-04-14 00:03:10,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:03:09" (2/3) ... [2025-04-14 00:03:10,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204ee5ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:03:10, skipping insertion in model container [2025-04-14 00:03:10,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:03:10" (3/3) ... [2025-04-14 00:03:10,530 INFO L128 eAbstractionObserver]: Analyzing ICFG mix030_power.opt_pso.opt_rmo.opt.i [2025-04-14 00:03:10,540 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 00:03:10,542 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix030_power.opt_pso.opt_rmo.opt.i that has 5 procedures, 46 locations, 41 edges, 1 initial locations, 0 loop locations, and 2 error locations. [2025-04-14 00:03:10,542 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 00:03:10,590 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-14 00:03:10,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 45 transitions, 106 flow [2025-04-14 00:03:10,647 INFO L116 PetriNetUnfolderBase]: 0/41 cut-off events. [2025-04-14 00:03:10,651 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:03:10,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 41 events. 0/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-04-14 00:03:10,653 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 45 transitions, 106 flow [2025-04-14 00:03:10,655 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 41 transitions, 94 flow [2025-04-14 00:03:10,666 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-14 00:03:10,677 INFO L340 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;@2c8d2bd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 00:03:10,677 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-14 00:03:10,684 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-14 00:03:10,684 INFO L116 PetriNetUnfolderBase]: 0/17 cut-off events. [2025-04-14 00:03:10,684 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:03:10,684 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:03:10,685 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:03:10,685 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:03:10,689 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:03:10,689 INFO L85 PathProgramCache]: Analyzing trace with hash -178925185, now seen corresponding path program 1 times [2025-04-14 00:03:10,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:03:10,696 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299468915] [2025-04-14 00:03:10,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:03:10,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:03:10,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-14 00:03:10,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-14 00:03:10,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:03:10,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:03:11,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:03:11,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:03:11,145 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299468915] [2025-04-14 00:03:11,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299468915] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:03:11,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:03:11,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-14 00:03:11,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143282400] [2025-04-14 00:03:11,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:03:11,152 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:03:11,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:03:11,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:03:11,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 00:03:11,172 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:03:11,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2025-04-14 00:03:11,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:03:11,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:03:11,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:03:14,703 INFO L116 PetriNetUnfolderBase]: 40307/52949 cut-off events. [2025-04-14 00:03:14,704 INFO L117 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2025-04-14 00:03:14,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106393 conditions, 52949 events. 40307/52949 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 1599. Compared 303034 event pairs, 5087 based on Foata normal form. 0/51418 useless extension candidates. Maximal degree in co-relation 106381. Up to 45661 conditions per place. [2025-04-14 00:03:14,961 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 57 selfloop transitions, 2 changer transitions 2/65 dead transitions. [2025-04-14 00:03:14,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 65 transitions, 267 flow [2025-04-14 00:03:14,963 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:03:14,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:03:14,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2025-04-14 00:03:14,970 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6370370370370371 [2025-04-14 00:03:14,971 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 94 flow. Second operand 3 states and 86 transitions. [2025-04-14 00:03:14,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 65 transitions, 267 flow [2025-04-14 00:03:14,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 65 transitions, 262 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-04-14 00:03:14,983 INFO L231 Difference]: Finished difference. Result has 51 places, 39 transitions, 90 flow [2025-04-14 00:03:14,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=51, PETRI_TRANSITIONS=39} [2025-04-14 00:03:14,989 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, -3 predicate places. [2025-04-14 00:03:14,989 INFO L485 AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 90 flow [2025-04-14 00:03:14,989 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2025-04-14 00:03:14,989 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:03:14,989 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:03:14,989 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 00:03:14,990 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:03:14,990 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:03:14,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1100207971, now seen corresponding path program 1 times [2025-04-14 00:03:14,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:03:14,990 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336348123] [2025-04-14 00:03:14,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:03:14,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:03:15,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-14 00:03:15,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-14 00:03:15,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:03:15,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:03:15,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:03:15,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:03:15,745 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336348123] [2025-04-14 00:03:15,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336348123] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:03:15,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:03:15,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 00:03:15,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329188904] [2025-04-14 00:03:15,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:03:15,746 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 00:03:15,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:03:15,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 00:03:15,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 00:03:15,747 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:03:15,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2025-04-14 00:03:15,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:03:15,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:03:15,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:03:20,115 INFO L116 PetriNetUnfolderBase]: 54915/72951 cut-off events. [2025-04-14 00:03:20,115 INFO L117 PetriNetUnfolderBase]: For 2904/2904 co-relation queries the response was YES. [2025-04-14 00:03:20,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149281 conditions, 72951 events. 54915/72951 cut-off events. For 2904/2904 co-relation queries the response was YES. Maximal size of possible extension queue 1993. Compared 425093 event pairs, 8987 based on Foata normal form. 2292/75218 useless extension candidates. Maximal degree in co-relation 149271. Up to 36873 conditions per place. [2025-04-14 00:03:20,440 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 67 selfloop transitions, 11 changer transitions 57/139 dead transitions. [2025-04-14 00:03:20,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 139 transitions, 570 flow [2025-04-14 00:03:20,441 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 00:03:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-14 00:03:20,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2025-04-14 00:03:20,442 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6158730158730159 [2025-04-14 00:03:20,442 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 90 flow. Second operand 7 states and 194 transitions. [2025-04-14 00:03:20,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 139 transitions, 570 flow [2025-04-14 00:03:20,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 139 transitions, 556 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-14 00:03:20,452 INFO L231 Difference]: Finished difference. Result has 60 places, 48 transitions, 192 flow [2025-04-14 00:03:20,452 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=192, PETRI_PLACES=60, PETRI_TRANSITIONS=48} [2025-04-14 00:03:20,452 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 6 predicate places. [2025-04-14 00:03:20,452 INFO L485 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 192 flow [2025-04-14 00:03:20,453 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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) [2025-04-14 00:03:20,453 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:03:20,453 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:03:20,453 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 00:03:20,453 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:03:20,454 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:03:20,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1878491187, now seen corresponding path program 1 times [2025-04-14 00:03:20,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:03:20,456 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815487132] [2025-04-14 00:03:20,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:03:20,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:03:20,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-04-14 00:03:20,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-04-14 00:03:20,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:03:20,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:03:20,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:03:20,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:03:20,674 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815487132] [2025-04-14 00:03:20,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815487132] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:03:20,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:03:20,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-14 00:03:20,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522963160] [2025-04-14 00:03:20,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:03:20,675 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 00:03:20,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:03:20,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 00:03:20,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 00:03:20,676 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:03:20,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 192 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:03:20,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:03:20,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:03:20,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:03:25,305 INFO L116 PetriNetUnfolderBase]: 51589/68807 cut-off events. [2025-04-14 00:03:25,306 INFO L117 PetriNetUnfolderBase]: For 64858/64858 co-relation queries the response was YES. [2025-04-14 00:03:25,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194939 conditions, 68807 events. 51589/68807 cut-off events. For 64858/64858 co-relation queries the response was YES. Maximal size of possible extension queue 1876. Compared 410443 event pairs, 16795 based on Foata normal form. 1852/70655 useless extension candidates. Maximal degree in co-relation 194923. Up to 61190 conditions per place. [2025-04-14 00:03:25,739 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 70 selfloop transitions, 5 changer transitions 45/124 dead transitions. [2025-04-14 00:03:25,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 124 transitions, 768 flow [2025-04-14 00:03:25,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 00:03:25,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-14 00:03:25,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2025-04-14 00:03:25,741 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5911111111111111 [2025-04-14 00:03:25,741 INFO L175 Difference]: Start difference. First operand has 60 places, 48 transitions, 192 flow. Second operand 5 states and 133 transitions. [2025-04-14 00:03:25,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 124 transitions, 768 flow [2025-04-14 00:03:26,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 124 transitions, 763 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-04-14 00:03:26,093 INFO L231 Difference]: Finished difference. Result has 62 places, 52 transitions, 249 flow [2025-04-14 00:03:26,093 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=249, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2025-04-14 00:03:26,094 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 8 predicate places. [2025-04-14 00:03:26,094 INFO L485 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 249 flow [2025-04-14 00:03:26,094 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:03:26,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:03:26,094 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:03:26,094 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-14 00:03:26,094 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:03:26,096 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:03:26,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1587436582, now seen corresponding path program 1 times [2025-04-14 00:03:26,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:03:26,096 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076634873] [2025-04-14 00:03:26,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:03:26,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:03:26,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-14 00:03:26,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-14 00:03:26,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:03:26,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:03:26,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:03:26,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:03:26,780 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076634873] [2025-04-14 00:03:26,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076634873] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:03:26,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:03:26,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 00:03:26,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159160502] [2025-04-14 00:03:26,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:03:26,781 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 00:03:26,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:03:26,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 00:03:26,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 00:03:26,781 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:03:26,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 249 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:03:26,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:03:26,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:03:26,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:03:30,906 INFO L116 PetriNetUnfolderBase]: 50923/67927 cut-off events. [2025-04-14 00:03:30,906 INFO L117 PetriNetUnfolderBase]: For 93099/93102 co-relation queries the response was YES. [2025-04-14 00:03:31,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203496 conditions, 67927 events. 50923/67927 cut-off events. For 93099/93102 co-relation queries the response was YES. Maximal size of possible extension queue 1833. Compared 392914 event pairs, 20031 based on Foata normal form. 1682/69600 useless extension candidates. Maximal degree in co-relation 203477. Up to 60647 conditions per place. [2025-04-14 00:03:31,436 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 89 selfloop transitions, 15 changer transitions 41/149 dead transitions. [2025-04-14 00:03:31,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 149 transitions, 1035 flow [2025-04-14 00:03:31,436 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 00:03:31,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-14 00:03:31,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2025-04-14 00:03:31,437 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2025-04-14 00:03:31,437 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 249 flow. Second operand 6 states and 153 transitions. [2025-04-14 00:03:31,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 149 transitions, 1035 flow [2025-04-14 00:03:31,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 149 transitions, 1022 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-04-14 00:03:31,686 INFO L231 Difference]: Finished difference. Result has 66 places, 66 transitions, 375 flow [2025-04-14 00:03:31,686 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=375, PETRI_PLACES=66, PETRI_TRANSITIONS=66} [2025-04-14 00:03:31,687 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 12 predicate places. [2025-04-14 00:03:31,687 INFO L485 AbstractCegarLoop]: Abstraction has has 66 places, 66 transitions, 375 flow [2025-04-14 00:03:31,687 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:03:31,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:03:31,687 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] [2025-04-14 00:03:31,687 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-14 00:03:31,687 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:03:31,688 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:03:31,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2098577996, now seen corresponding path program 1 times [2025-04-14 00:03:31,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:03:31,688 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553060724] [2025-04-14 00:03:31,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:03:31,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:03:31,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-14 00:03:31,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-14 00:03:31,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:03:31,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:03:32,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:03:32,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:03:32,255 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553060724] [2025-04-14 00:03:32,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553060724] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:03:32,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:03:32,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:03:32,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758247817] [2025-04-14 00:03:32,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:03:32,255 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 00:03:32,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:03:32,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 00:03:32,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-14 00:03:32,256 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:03:32,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 66 transitions, 375 flow. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:03:32,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:03:32,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:03:32,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:03:37,616 INFO L116 PetriNetUnfolderBase]: 54447/72533 cut-off events. [2025-04-14 00:03:37,616 INFO L117 PetriNetUnfolderBase]: For 131131/131134 co-relation queries the response was YES. [2025-04-14 00:03:37,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233324 conditions, 72533 events. 54447/72533 cut-off events. For 131131/131134 co-relation queries the response was YES. Maximal size of possible extension queue 1927. Compared 420003 event pairs, 12476 based on Foata normal form. 1548/74069 useless extension candidates. Maximal degree in co-relation 233302. Up to 55569 conditions per place. [2025-04-14 00:03:38,101 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 124 selfloop transitions, 35 changer transitions 74/237 dead transitions. [2025-04-14 00:03:38,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 237 transitions, 1719 flow [2025-04-14 00:03:38,102 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 00:03:38,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-14 00:03:38,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 242 transitions. [2025-04-14 00:03:38,103 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5975308641975309 [2025-04-14 00:03:38,103 INFO L175 Difference]: Start difference. First operand has 66 places, 66 transitions, 375 flow. Second operand 9 states and 242 transitions. [2025-04-14 00:03:38,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 237 transitions, 1719 flow [2025-04-14 00:03:38,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 237 transitions, 1703 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-04-14 00:03:38,874 INFO L231 Difference]: Finished difference. Result has 77 places, 92 transitions, 746 flow [2025-04-14 00:03:38,874 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=746, PETRI_PLACES=77, PETRI_TRANSITIONS=92} [2025-04-14 00:03:38,874 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 23 predicate places. [2025-04-14 00:03:38,875 INFO L485 AbstractCegarLoop]: Abstraction has has 77 places, 92 transitions, 746 flow [2025-04-14 00:03:38,875 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:03:38,875 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:03:38,875 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] [2025-04-14 00:03:38,875 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-14 00:03:38,875 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:03:38,875 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:03:38,875 INFO L85 PathProgramCache]: Analyzing trace with hash 327547908, now seen corresponding path program 2 times [2025-04-14 00:03:38,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:03:38,876 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312661656] [2025-04-14 00:03:38,876 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 00:03:38,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:03:38,881 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 1 equivalence classes. [2025-04-14 00:03:38,892 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-14 00:03:38,892 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-14 00:03:38,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:03:39,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:03:39,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:03:39,186 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312661656] [2025-04-14 00:03:39,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312661656] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:03:39,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:03:39,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:03:39,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064980500] [2025-04-14 00:03:39,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:03:39,187 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 00:03:39,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:03:39,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 00:03:39,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-14 00:03:39,187 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:03:39,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 92 transitions, 746 flow. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:03:39,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:03:39,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:03:39,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:03:44,551 INFO L116 PetriNetUnfolderBase]: 53431/71187 cut-off events. [2025-04-14 00:03:44,552 INFO L117 PetriNetUnfolderBase]: For 260198/260208 co-relation queries the response was YES. [2025-04-14 00:03:44,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273991 conditions, 71187 events. 53431/71187 cut-off events. For 260198/260208 co-relation queries the response was YES. Maximal size of possible extension queue 1863. Compared 410911 event pairs, 13801 based on Foata normal form. 1307/72485 useless extension candidates. Maximal degree in co-relation 273962. Up to 55487 conditions per place. [2025-04-14 00:03:45,143 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 137 selfloop transitions, 40 changer transitions 55/236 dead transitions. [2025-04-14 00:03:45,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 236 transitions, 2238 flow [2025-04-14 00:03:45,144 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 00:03:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-04-14 00:03:45,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 210 transitions. [2025-04-14 00:03:45,145 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2025-04-14 00:03:45,145 INFO L175 Difference]: Start difference. First operand has 77 places, 92 transitions, 746 flow. Second operand 8 states and 210 transitions. [2025-04-14 00:03:45,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 236 transitions, 2238 flow [2025-04-14 00:03:45,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 236 transitions, 2204 flow, removed 17 selfloop flow, removed 2 redundant places. [2025-04-14 00:03:45,582 INFO L231 Difference]: Finished difference. Result has 82 places, 104 transitions, 987 flow [2025-04-14 00:03:45,582 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=987, PETRI_PLACES=82, PETRI_TRANSITIONS=104} [2025-04-14 00:03:45,582 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 28 predicate places. [2025-04-14 00:03:45,582 INFO L485 AbstractCegarLoop]: Abstraction has has 82 places, 104 transitions, 987 flow [2025-04-14 00:03:45,582 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:03:45,582 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:03:45,583 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] [2025-04-14 00:03:45,583 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-14 00:03:45,583 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:03:45,583 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:03:45,583 INFO L85 PathProgramCache]: Analyzing trace with hash 2027421970, now seen corresponding path program 1 times [2025-04-14 00:03:45,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:03:45,583 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494947193] [2025-04-14 00:03:45,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:03:45,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:03:45,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-14 00:03:45,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-14 00:03:45,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:03:45,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:03:45,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:03:45,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:03:45,713 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494947193] [2025-04-14 00:03:45,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494947193] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:03:45,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:03:45,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 00:03:45,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371320288] [2025-04-14 00:03:45,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:03:45,714 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 00:03:45,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:03:45,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 00:03:45,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 00:03:45,714 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:03:45,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 104 transitions, 987 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:03:45,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:03:45,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:03:45,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:03:50,736 INFO L116 PetriNetUnfolderBase]: 48443/65183 cut-off events. [2025-04-14 00:03:50,736 INFO L117 PetriNetUnfolderBase]: For 299633/299650 co-relation queries the response was YES. [2025-04-14 00:03:51,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261877 conditions, 65183 events. 48443/65183 cut-off events. For 299633/299650 co-relation queries the response was YES. Maximal size of possible extension queue 1845. Compared 390359 event pairs, 5314 based on Foata normal form. 2467/67642 useless extension candidates. Maximal degree in co-relation 261844. Up to 35836 conditions per place. [2025-04-14 00:03:51,296 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 216 selfloop transitions, 6 changer transitions 1/227 dead transitions. [2025-04-14 00:03:51,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 227 transitions, 2591 flow [2025-04-14 00:03:51,297 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 00:03:51,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-14 00:03:51,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2025-04-14 00:03:51,297 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2025-04-14 00:03:51,297 INFO L175 Difference]: Start difference. First operand has 82 places, 104 transitions, 987 flow. Second operand 4 states and 115 transitions. [2025-04-14 00:03:51,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 227 transitions, 2591 flow [2025-04-14 00:03:51,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 227 transitions, 2474 flow, removed 21 selfloop flow, removed 5 redundant places. [2025-04-14 00:03:51,997 INFO L231 Difference]: Finished difference. Result has 79 places, 105 transitions, 928 flow [2025-04-14 00:03:51,997 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=928, PETRI_PLACES=79, PETRI_TRANSITIONS=105} [2025-04-14 00:03:51,998 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 25 predicate places. [2025-04-14 00:03:51,998 INFO L485 AbstractCegarLoop]: Abstraction has has 79 places, 105 transitions, 928 flow [2025-04-14 00:03:51,998 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:03:51,998 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:03:51,998 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] [2025-04-14 00:03:51,998 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-14 00:03:51,998 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:03:51,999 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:03:51,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1228290793, now seen corresponding path program 1 times [2025-04-14 00:03:51,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:03:51,999 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033917436] [2025-04-14 00:03:51,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:03:51,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:03:52,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-14 00:03:52,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-14 00:03:52,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:03:52,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:03:52,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:03:52,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:03:52,395 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033917436] [2025-04-14 00:03:52,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033917436] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:03:52,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:03:52,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-14 00:03:52,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633822100] [2025-04-14 00:03:52,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:03:52,395 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-14 00:03:52,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:03:52,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-14 00:03:52,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-04-14 00:03:52,396 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:03:52,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 105 transitions, 928 flow. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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) [2025-04-14 00:03:52,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:03:52,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:03:52,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:03:57,216 INFO L116 PetriNetUnfolderBase]: 44927/60385 cut-off events. [2025-04-14 00:03:57,216 INFO L117 PetriNetUnfolderBase]: For 232560/232570 co-relation queries the response was YES. [2025-04-14 00:03:57,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248130 conditions, 60385 events. 44927/60385 cut-off events. For 232560/232570 co-relation queries the response was YES. Maximal size of possible extension queue 1624. Compared 350568 event pairs, 11252 based on Foata normal form. 701/61077 useless extension candidates. Maximal degree in co-relation 248097. Up to 47873 conditions per place. [2025-04-14 00:03:57,962 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 148 selfloop transitions, 45 changer transitions 47/244 dead transitions. [2025-04-14 00:03:57,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 244 transitions, 2418 flow [2025-04-14 00:03:57,962 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 00:03:57,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-04-14 00:03:57,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 204 transitions. [2025-04-14 00:03:57,963 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2025-04-14 00:03:57,963 INFO L175 Difference]: Start difference. First operand has 79 places, 105 transitions, 928 flow. Second operand 8 states and 204 transitions. [2025-04-14 00:03:57,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 244 transitions, 2418 flow [2025-04-14 00:03:58,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 244 transitions, 2390 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-04-14 00:03:58,058 INFO L231 Difference]: Finished difference. Result has 89 places, 117 transitions, 1220 flow [2025-04-14 00:03:58,058 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=919, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1220, PETRI_PLACES=89, PETRI_TRANSITIONS=117} [2025-04-14 00:03:58,059 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 35 predicate places. [2025-04-14 00:03:58,059 INFO L485 AbstractCegarLoop]: Abstraction has has 89 places, 117 transitions, 1220 flow [2025-04-14 00:03:58,059 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 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) [2025-04-14 00:03:58,059 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:03:58,059 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] [2025-04-14 00:03:58,059 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-14 00:03:58,059 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:03:58,060 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:03:58,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1624129341, now seen corresponding path program 1 times [2025-04-14 00:03:58,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:03:58,060 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175058911] [2025-04-14 00:03:58,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:03:58,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:03:58,066 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-14 00:03:58,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-14 00:03:58,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:03:58,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:03:58,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:03:58,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:03:58,793 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175058911] [2025-04-14 00:03:58,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175058911] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:03:58,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:03:58,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:03:58,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583084841] [2025-04-14 00:03:58,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:03:58,794 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 00:03:58,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:03:58,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 00:03:58,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-04-14 00:03:58,794 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:03:58,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 117 transitions, 1220 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) [2025-04-14 00:03:58,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:03:58,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:03:58,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:04:03,918 INFO L116 PetriNetUnfolderBase]: 44350/59610 cut-off events. [2025-04-14 00:04:03,918 INFO L117 PetriNetUnfolderBase]: For 306387/306397 co-relation queries the response was YES. [2025-04-14 00:04:04,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253219 conditions, 59610 events. 44350/59610 cut-off events. For 306387/306397 co-relation queries the response was YES. Maximal size of possible extension queue 1590. Compared 345085 event pairs, 16746 based on Foata normal form. 743/60344 useless extension candidates. Maximal degree in co-relation 253181. Up to 55526 conditions per place. [2025-04-14 00:04:04,401 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 123 selfloop transitions, 20 changer transitions 40/187 dead transitions. [2025-04-14 00:04:04,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 187 transitions, 2117 flow [2025-04-14 00:04:04,402 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 00:04:04,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-14 00:04:04,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2025-04-14 00:04:04,403 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5644444444444444 [2025-04-14 00:04:04,403 INFO L175 Difference]: Start difference. First operand has 89 places, 117 transitions, 1220 flow. Second operand 5 states and 127 transitions. [2025-04-14 00:04:04,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 187 transitions, 2117 flow [2025-04-14 00:04:05,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 187 transitions, 2077 flow, removed 20 selfloop flow, removed 3 redundant places. [2025-04-14 00:04:05,207 INFO L231 Difference]: Finished difference. Result has 90 places, 120 transitions, 1302 flow [2025-04-14 00:04:05,208 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1184, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1302, PETRI_PLACES=90, PETRI_TRANSITIONS=120} [2025-04-14 00:04:05,208 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 36 predicate places. [2025-04-14 00:04:05,208 INFO L485 AbstractCegarLoop]: Abstraction has has 90 places, 120 transitions, 1302 flow [2025-04-14 00:04:05,208 INFO L486 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) [2025-04-14 00:04:05,208 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:04:05,209 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] [2025-04-14 00:04:05,209 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-14 00:04:05,209 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:04:05,209 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:04:05,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1978959771, now seen corresponding path program 1 times [2025-04-14 00:04:05,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:04:05,209 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881775667] [2025-04-14 00:04:05,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:04:05,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:04:05,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-14 00:04:05,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-14 00:04:05,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:04:05,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:04:05,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:04:05,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:04:05,463 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881775667] [2025-04-14 00:04:05,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881775667] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:04:05,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:04:05,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:04:05,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050156417] [2025-04-14 00:04:05,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:04:05,463 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 00:04:05,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:04:05,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 00:04:05,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 00:04:05,464 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:04:05,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 120 transitions, 1302 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:04:05,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:04:05,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:04:05,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:04:12,643 INFO L116 PetriNetUnfolderBase]: 63160/84926 cut-off events. [2025-04-14 00:04:12,643 INFO L117 PetriNetUnfolderBase]: For 410757/410765 co-relation queries the response was YES. [2025-04-14 00:04:12,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355853 conditions, 84926 events. 63160/84926 cut-off events. For 410757/410765 co-relation queries the response was YES. Maximal size of possible extension queue 2262. Compared 514955 event pairs, 20126 based on Foata normal form. 1146/86068 useless extension candidates. Maximal degree in co-relation 355813. Up to 41643 conditions per place. [2025-04-14 00:04:13,207 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 147 selfloop transitions, 30 changer transitions 89/270 dead transitions. [2025-04-14 00:04:13,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 270 transitions, 3021 flow [2025-04-14 00:04:13,208 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 00:04:13,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-14 00:04:13,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2025-04-14 00:04:13,208 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2025-04-14 00:04:13,209 INFO L175 Difference]: Start difference. First operand has 90 places, 120 transitions, 1302 flow. Second operand 7 states and 196 transitions. [2025-04-14 00:04:13,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 270 transitions, 3021 flow [2025-04-14 00:04:13,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 270 transitions, 2946 flow, removed 11 selfloop flow, removed 3 redundant places. [2025-04-14 00:04:13,814 INFO L231 Difference]: Finished difference. Result has 97 places, 120 transitions, 1357 flow [2025-04-14 00:04:13,814 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1254, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1357, PETRI_PLACES=97, PETRI_TRANSITIONS=120} [2025-04-14 00:04:13,815 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 43 predicate places. [2025-04-14 00:04:13,815 INFO L485 AbstractCegarLoop]: Abstraction has has 97 places, 120 transitions, 1357 flow [2025-04-14 00:04:13,815 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:04:13,815 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:04:13,815 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] [2025-04-14 00:04:13,815 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-14 00:04:13,815 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:04:13,816 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:04:13,816 INFO L85 PathProgramCache]: Analyzing trace with hash 488332637, now seen corresponding path program 1 times [2025-04-14 00:04:13,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:04:13,816 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50600072] [2025-04-14 00:04:13,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:04:13,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:04:13,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-14 00:04:13,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-14 00:04:13,834 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:04:13,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:04:14,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:04:14,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:04:14,742 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50600072] [2025-04-14 00:04:14,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50600072] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:04:14,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:04:14,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-14 00:04:14,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906632239] [2025-04-14 00:04:14,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:04:14,743 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-14 00:04:14,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:04:14,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-14 00:04:14,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-04-14 00:04:14,745 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:04:14,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 120 transitions, 1357 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2025-04-14 00:04:14,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:04:14,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:04:14,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:04:27,527 INFO L116 PetriNetUnfolderBase]: 97214/132266 cut-off events. [2025-04-14 00:04:27,527 INFO L117 PetriNetUnfolderBase]: For 817564/817570 co-relation queries the response was YES. [2025-04-14 00:04:28,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569704 conditions, 132266 events. 97214/132266 cut-off events. For 817564/817570 co-relation queries the response was YES. Maximal size of possible extension queue 3664. Compared 878644 event pairs, 20505 based on Foata normal form. 2552/134811 useless extension candidates. Maximal degree in co-relation 569659. Up to 48695 conditions per place. [2025-04-14 00:04:28,756 INFO L140 encePairwiseOnDemand]: 30/45 looper letters, 179 selfloop transitions, 74 changer transitions 94/351 dead transitions. [2025-04-14 00:04:28,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 351 transitions, 4063 flow [2025-04-14 00:04:28,757 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-14 00:04:28,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-04-14 00:04:28,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 269 transitions. [2025-04-14 00:04:28,758 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5977777777777777 [2025-04-14 00:04:28,758 INFO L175 Difference]: Start difference. First operand has 97 places, 120 transitions, 1357 flow. Second operand 10 states and 269 transitions. [2025-04-14 00:04:28,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 351 transitions, 4063 flow [2025-04-14 00:04:29,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 351 transitions, 3973 flow, removed 45 selfloop flow, removed 1 redundant places. [2025-04-14 00:04:29,957 INFO L231 Difference]: Finished difference. Result has 110 places, 165 transitions, 2251 flow [2025-04-14 00:04:29,958 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1325, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2251, PETRI_PLACES=110, PETRI_TRANSITIONS=165} [2025-04-14 00:04:29,958 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 56 predicate places. [2025-04-14 00:04:29,958 INFO L485 AbstractCegarLoop]: Abstraction has has 110 places, 165 transitions, 2251 flow [2025-04-14 00:04:29,958 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2025-04-14 00:04:29,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:04:29,958 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] [2025-04-14 00:04:29,958 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-14 00:04:29,959 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:04:29,959 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:04:29,959 INFO L85 PathProgramCache]: Analyzing trace with hash -782750088, now seen corresponding path program 1 times [2025-04-14 00:04:29,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:04:29,959 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823329151] [2025-04-14 00:04:29,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:04:29,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:04:29,964 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-04-14 00:04:29,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-04-14 00:04:29,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:04:29,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:04:30,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:04:30,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:04:30,059 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823329151] [2025-04-14 00:04:30,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823329151] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:04:30,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:04:30,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:04:30,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345044585] [2025-04-14 00:04:30,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:04:30,060 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 00:04:30,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:04:30,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 00:04:30,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 00:04:30,060 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:04:30,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 165 transitions, 2251 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:04:30,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:04:30,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:04:30,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:04:39,836 INFO L116 PetriNetUnfolderBase]: 72537/100045 cut-off events. [2025-04-14 00:04:39,836 INFO L117 PetriNetUnfolderBase]: For 834768/834780 co-relation queries the response was YES. [2025-04-14 00:04:40,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459717 conditions, 100045 events. 72537/100045 cut-off events. For 834768/834780 co-relation queries the response was YES. Maximal size of possible extension queue 3014. Compared 662582 event pairs, 5913 based on Foata normal form. 4749/104786 useless extension candidates. Maximal degree in co-relation 459663. Up to 38865 conditions per place. [2025-04-14 00:04:40,638 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 366 selfloop transitions, 10 changer transitions 44/424 dead transitions. [2025-04-14 00:04:40,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 424 transitions, 6678 flow [2025-04-14 00:04:40,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 00:04:40,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-14 00:04:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2025-04-14 00:04:40,639 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6622222222222223 [2025-04-14 00:04:40,639 INFO L175 Difference]: Start difference. First operand has 110 places, 165 transitions, 2251 flow. Second operand 5 states and 149 transitions. [2025-04-14 00:04:40,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 424 transitions, 6678 flow [2025-04-14 00:04:41,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 424 transitions, 6567 flow, removed 55 selfloop flow, removed 4 redundant places. [2025-04-14 00:04:41,826 INFO L231 Difference]: Finished difference. Result has 108 places, 151 transitions, 1987 flow [2025-04-14 00:04:41,827 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2014, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1987, PETRI_PLACES=108, PETRI_TRANSITIONS=151} [2025-04-14 00:04:41,827 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 54 predicate places. [2025-04-14 00:04:41,827 INFO L485 AbstractCegarLoop]: Abstraction has has 108 places, 151 transitions, 1987 flow [2025-04-14 00:04:41,827 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:04:41,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:04:41,828 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:04:41,828 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-14 00:04:41,828 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:04:41,828 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:04:41,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2039075158, now seen corresponding path program 1 times [2025-04-14 00:04:41,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:04:41,828 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236748491] [2025-04-14 00:04:41,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:04:41,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:04:41,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-14 00:04:41,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 00:04:41,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:04:41,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:04:42,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:04:42,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:04:42,616 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236748491] [2025-04-14 00:04:42,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236748491] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:04:42,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:04:42,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-14 00:04:42,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831042677] [2025-04-14 00:04:42,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:04:42,617 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-14 00:04:42,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:04:42,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-14 00:04:42,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-04-14 00:04:42,618 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:04:42,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 151 transitions, 1987 flow. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2025-04-14 00:04:42,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:04:42,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:04:42,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:04:51,624 INFO L116 PetriNetUnfolderBase]: 60159/83143 cut-off events. [2025-04-14 00:04:51,624 INFO L117 PetriNetUnfolderBase]: For 578047/578050 co-relation queries the response was YES. [2025-04-14 00:04:52,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398623 conditions, 83143 events. 60159/83143 cut-off events. For 578047/578050 co-relation queries the response was YES. Maximal size of possible extension queue 2270. Compared 531094 event pairs, 19490 based on Foata normal form. 352/83486 useless extension candidates. Maximal degree in co-relation 398569. Up to 74847 conditions per place. [2025-04-14 00:04:52,380 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 166 selfloop transitions, 24 changer transitions 36/230 dead transitions. [2025-04-14 00:04:52,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 230 transitions, 3079 flow [2025-04-14 00:04:52,380 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 00:04:52,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-14 00:04:52,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2025-04-14 00:04:52,381 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.562962962962963 [2025-04-14 00:04:52,381 INFO L175 Difference]: Start difference. First operand has 108 places, 151 transitions, 1987 flow. Second operand 6 states and 152 transitions. [2025-04-14 00:04:52,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 230 transitions, 3079 flow [2025-04-14 00:04:53,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 230 transitions, 3003 flow, removed 19 selfloop flow, removed 4 redundant places. [2025-04-14 00:04:53,844 INFO L231 Difference]: Finished difference. Result has 112 places, 149 transitions, 1993 flow [2025-04-14 00:04:53,845 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1952, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1993, PETRI_PLACES=112, PETRI_TRANSITIONS=149} [2025-04-14 00:04:53,845 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 58 predicate places. [2025-04-14 00:04:53,845 INFO L485 AbstractCegarLoop]: Abstraction has has 112 places, 149 transitions, 1993 flow [2025-04-14 00:04:53,845 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2025-04-14 00:04:53,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:04:53,846 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] [2025-04-14 00:04:53,846 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-04-14 00:04:53,846 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:04:53,846 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:04:53,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1608641587, now seen corresponding path program 1 times [2025-04-14 00:04:53,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:04:53,846 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067386989] [2025-04-14 00:04:53,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:04:53,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:04:53,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-14 00:04:53,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 00:04:53,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:04:53,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:04:53,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:04:53,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:04:53,975 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067386989] [2025-04-14 00:04:53,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067386989] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:04:53,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:04:53,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:04:53,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109874985] [2025-04-14 00:04:53,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:04:53,976 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 00:04:53,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:04:53,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 00:04:53,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-14 00:04:53,976 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:04:53,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 149 transitions, 1993 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 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) [2025-04-14 00:04:53,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:04:53,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:04:53,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:05:11,215 INFO L116 PetriNetUnfolderBase]: 122315/169587 cut-off events. [2025-04-14 00:05:11,215 INFO L117 PetriNetUnfolderBase]: For 1196690/1196705 co-relation queries the response was YES. [2025-04-14 00:05:12,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 760981 conditions, 169587 events. 122315/169587 cut-off events. For 1196690/1196705 co-relation queries the response was YES. Maximal size of possible extension queue 5018. Compared 1198376 event pairs, 45376 based on Foata normal form. 1784/171362 useless extension candidates. Maximal degree in co-relation 760925. Up to 65819 conditions per place. [2025-04-14 00:05:12,749 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 159 selfloop transitions, 9 changer transitions 144/316 dead transitions. [2025-04-14 00:05:12,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 316 transitions, 4511 flow [2025-04-14 00:05:12,749 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 00:05:12,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-14 00:05:12,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2025-04-14 00:05:12,750 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6148148148148148 [2025-04-14 00:05:12,750 INFO L175 Difference]: Start difference. First operand has 112 places, 149 transitions, 1993 flow. Second operand 6 states and 166 transitions. [2025-04-14 00:05:12,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 316 transitions, 4511 flow [2025-04-14 00:05:16,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 316 transitions, 4421 flow, removed 14 selfloop flow, removed 7 redundant places. [2025-04-14 00:05:16,274 INFO L231 Difference]: Finished difference. Result has 112 places, 133 transitions, 1691 flow [2025-04-14 00:05:16,274 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1919, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1691, PETRI_PLACES=112, PETRI_TRANSITIONS=133} [2025-04-14 00:05:16,275 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 58 predicate places. [2025-04-14 00:05:16,275 INFO L485 AbstractCegarLoop]: Abstraction has has 112 places, 133 transitions, 1691 flow [2025-04-14 00:05:16,275 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 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) [2025-04-14 00:05:16,275 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:05:16,275 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] [2025-04-14 00:05:16,275 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-04-14 00:05:16,275 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:05:16,276 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:05:16,276 INFO L85 PathProgramCache]: Analyzing trace with hash 681615251, now seen corresponding path program 2 times [2025-04-14 00:05:16,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:05:16,276 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20222102] [2025-04-14 00:05:16,276 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 00:05:16,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:05:16,281 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 1 equivalence classes. [2025-04-14 00:05:16,303 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 00:05:16,303 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-14 00:05:16,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:05:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:05:16,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:05:16,405 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20222102] [2025-04-14 00:05:16,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20222102] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:05:16,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:05:16,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-14 00:05:16,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584291055] [2025-04-14 00:05:16,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:05:16,405 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 00:05:16,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:05:16,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 00:05:16,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-04-14 00:05:16,406 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:05:16,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 133 transitions, 1691 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2025-04-14 00:05:16,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:05:16,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:05:16,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:05:25,021 INFO L116 PetriNetUnfolderBase]: 66225/93329 cut-off events. [2025-04-14 00:05:25,021 INFO L117 PetriNetUnfolderBase]: For 618577/618589 co-relation queries the response was YES. [2025-04-14 00:05:25,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396196 conditions, 93329 events. 66225/93329 cut-off events. For 618577/618589 co-relation queries the response was YES. Maximal size of possible extension queue 2725. Compared 638144 event pairs, 4475 based on Foata normal form. 4469/97790 useless extension candidates. Maximal degree in co-relation 396158. Up to 31312 conditions per place. [2025-04-14 00:05:25,790 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 250 selfloop transitions, 14 changer transitions 96/364 dead transitions. [2025-04-14 00:05:25,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 364 transitions, 5435 flow [2025-04-14 00:05:25,790 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 00:05:25,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-14 00:05:25,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2025-04-14 00:05:25,791 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6703703703703704 [2025-04-14 00:05:25,791 INFO L175 Difference]: Start difference. First operand has 112 places, 133 transitions, 1691 flow. Second operand 6 states and 181 transitions. [2025-04-14 00:05:25,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 364 transitions, 5435 flow [2025-04-14 00:05:26,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 364 transitions, 5281 flow, removed 20 selfloop flow, removed 9 redundant places. [2025-04-14 00:05:26,778 INFO L231 Difference]: Finished difference. Result has 107 places, 111 transitions, 1317 flow [2025-04-14 00:05:26,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1503, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1317, PETRI_PLACES=107, PETRI_TRANSITIONS=111} [2025-04-14 00:05:26,779 INFO L279 CegarLoopForPetriNet]: 54 programPoint places, 53 predicate places. [2025-04-14 00:05:26,779 INFO L485 AbstractCegarLoop]: Abstraction has has 107 places, 111 transitions, 1317 flow [2025-04-14 00:05:26,779 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2025-04-14 00:05:26,779 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:05:26,779 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] [2025-04-14 00:05:26,779 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-04-14 00:05:26,779 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:05:26,779 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:05:26,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1859672924, now seen corresponding path program 1 times [2025-04-14 00:05:26,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:05:26,780 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192022043] [2025-04-14 00:05:26,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:05:26,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:05:26,785 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-04-14 00:05:26,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-04-14 00:05:26,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:05:26,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:05:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:05:26,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:05:26,941 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192022043] [2025-04-14 00:05:26,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192022043] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:05:26,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:05:26,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-14 00:05:26,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892056227] [2025-04-14 00:05:26,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:05:26,941 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-14 00:05:26,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:05:26,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-14 00:05:26,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-04-14 00:05:26,942 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 45 [2025-04-14 00:05:26,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 111 transitions, 1317 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:05:26,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:05:26,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 45 [2025-04-14 00:05:26,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:05:31,478 INFO L116 PetriNetUnfolderBase]: 36079/51051 cut-off events. [2025-04-14 00:05:31,478 INFO L117 PetriNetUnfolderBase]: For 354175/354187 co-relation queries the response was YES. [2025-04-14 00:05:31,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232077 conditions, 51051 events. 36079/51051 cut-off events. For 354175/354187 co-relation queries the response was YES. Maximal size of possible extension queue 1638. Compared 327700 event pairs, 2665 based on Foata normal form. 1129/52172 useless extension candidates. Maximal degree in co-relation 232042. Up to 16176 conditions per place. [2025-04-14 00:05:31,849 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 169 selfloop transitions, 18 changer transitions 82/273 dead transitions. [2025-04-14 00:05:31,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 273 transitions, 3725 flow [2025-04-14 00:05:31,849 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 00:05:31,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-14 00:05:31,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 177 transitions. [2025-04-14 00:05:31,850 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5619047619047619 [2025-04-14 00:05:31,850 INFO L175 Difference]: Start difference. First operand has 107 places, 111 transitions, 1317 flow. Second operand 7 states and 177 transitions. [2025-04-14 00:05:31,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 273 transitions, 3725 flow