/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/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-14 00:06:05,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 00:06:05,587 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 00:06:05,590 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 00:06:05,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 00:06:05,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 00:06:05,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 00:06:05,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 00:06:05,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-14 00:06:05,615 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-14 00:06:05,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 00:06:05,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 00:06:05,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 00:06:05,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 00:06:05,616 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 00:06:05,617 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 00:06:05,617 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 00:06:05,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:06:05,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:06:05,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:06:05,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:06:05,617 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 00:06:05,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:06:05,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:06:05,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:06:05,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:06:05,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 00:06:05,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 00:06:05,618 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 00:06:05,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 00:06:05,619 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 00:06:05,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 00:06:05,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-14 00:06:05,619 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-14 00:06:05,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 00:06:05,619 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 00:06:05,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 00:06:05,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 00:06:05,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 00:06:05,825 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 00:06:05,825 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 00:06:05,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-04-14 00:06:07,108 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5d78ca46/cb4ad736ba0d4f49b6be65be8fb8edb4/FLAG3a452ad21 [2025-04-14 00:06:07,336 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 00:06:07,337 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-04-14 00:06:07,351 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5d78ca46/cb4ad736ba0d4f49b6be65be8fb8edb4/FLAG3a452ad21 [2025-04-14 00:06:08,158 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5d78ca46/cb4ad736ba0d4f49b6be65be8fb8edb4 [2025-04-14 00:06:08,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 00:06:08,161 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 00:06:08,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 00:06:08,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 00:06:08,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 00:06:08,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67610cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08, skipping insertion in model container [2025-04-14 00:06:08,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,199 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 00:06:08,368 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/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2025-04-14 00:06:08,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:06:08,560 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 00:06:08,577 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/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2025-04-14 00:06:08,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:06:08,655 INFO L204 MainTranslator]: Completed translation [2025-04-14 00:06:08,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08 WrapperNode [2025-04-14 00:06:08,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 00:06:08,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 00:06:08,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 00:06:08,658 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 00:06:08,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,673 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,697 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 152 [2025-04-14 00:06:08,698 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 00:06:08,698 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 00:06:08,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 00:06:08,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 00:06:08,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,708 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,720 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 00:06:08,720 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,720 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,729 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,736 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 00:06:08,737 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 00:06:08,737 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 00:06:08,737 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 00:06:08,737 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (1/1) ... [2025-04-14 00:06:08,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:06:08,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:06:08,764 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 00:06:08,768 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 00:06:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-14 00:06:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 00:06:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-14 00:06:08,787 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-14 00:06:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-14 00:06:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-14 00:06:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-04-14 00:06:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-04-14 00:06:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-04-14 00:06:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-04-14 00:06:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-14 00:06:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-14 00:06:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 00:06:08,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 00:06:08,789 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 00:06:08,893 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 00:06:08,895 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 00:06:09,152 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 00:06:09,154 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 00:06:09,154 INFO L318 CfgBuilder]: Performing block encoding [2025-04-14 00:06:09,381 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 00:06:09,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:06:09 BoogieIcfgContainer [2025-04-14 00:06:09,381 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 00:06:09,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 00:06:09,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 00:06:09,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 00:06:09,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:06:08" (1/3) ... [2025-04-14 00:06:09,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6851af35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:06:09, skipping insertion in model container [2025-04-14 00:06:09,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:06:08" (2/3) ... [2025-04-14 00:06:09,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6851af35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:06:09, skipping insertion in model container [2025-04-14 00:06:09,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:06:09" (3/3) ... [2025-04-14 00:06:09,389 INFO L128 eAbstractionObserver]: Analyzing ICFG mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-04-14 00:06:09,399 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 00:06:09,400 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i that has 5 procedures, 47 locations, 42 edges, 1 initial locations, 0 loop locations, and 2 error locations. [2025-04-14 00:06:09,401 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 00:06:09,445 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-14 00:06:09,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 46 transitions, 108 flow [2025-04-14 00:06:09,497 INFO L116 PetriNetUnfolderBase]: 0/42 cut-off events. [2025-04-14 00:06:09,499 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:06:09,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 42 events. 0/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-04-14 00:06:09,500 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 46 transitions, 108 flow [2025-04-14 00:06:09,505 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 42 transitions, 96 flow [2025-04-14 00:06:09,510 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-14 00:06:09,522 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;@41293409, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 00:06:09,522 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-14 00:06:09,532 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-14 00:06:09,533 INFO L116 PetriNetUnfolderBase]: 0/26 cut-off events. [2025-04-14 00:06:09,533 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:06:09,533 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:06:09,534 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:06:09,534 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:06:09,538 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:06:09,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1290232927, now seen corresponding path program 1 times [2025-04-14 00:06:09,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:06:09,544 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642228653] [2025-04-14 00:06:09,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:06:09,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:06:09,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-14 00:06:09,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-14 00:06:09,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:06:09,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:06:10,038 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 00:06:10,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:06:10,039 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642228653] [2025-04-14 00:06:10,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642228653] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:06:10,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:06:10,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-14 00:06:10,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312068004] [2025-04-14 00:06:10,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:06:10,047 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:06:10,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:06:10,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:06:10,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 00:06:10,069 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2025-04-14 00:06:10,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 00:06:10,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:06:10,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2025-04-14 00:06:10,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:06:13,743 INFO L116 PetriNetUnfolderBase]: 46139/60527 cut-off events. [2025-04-14 00:06:13,743 INFO L117 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2025-04-14 00:06:13,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121531 conditions, 60527 events. 46139/60527 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 1747. Compared 339989 event pairs, 5315 based on Foata normal form. 0/58774 useless extension candidates. Maximal degree in co-relation 121519. Up to 52921 conditions per place. [2025-04-14 00:06:14,081 INFO L140 encePairwiseOnDemand]: 43/46 looper letters, 55 selfloop transitions, 2 changer transitions 2/63 dead transitions. [2025-04-14 00:06:14,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 63 transitions, 256 flow [2025-04-14 00:06:14,082 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:06:14,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:06:14,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2025-04-14 00:06:14,090 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2025-04-14 00:06:14,091 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 96 flow. Second operand 3 states and 84 transitions. [2025-04-14 00:06:14,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 63 transitions, 256 flow [2025-04-14 00:06:14,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 63 transitions, 252 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-04-14 00:06:14,100 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 92 flow [2025-04-14 00:06:14,101 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2025-04-14 00:06:14,104 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -3 predicate places. [2025-04-14 00:06:14,104 INFO L485 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 92 flow [2025-04-14 00:06:14,104 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 00:06:14,104 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:06:14,104 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:06:14,104 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 00:06:14,104 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:06:14,105 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:06:14,105 INFO L85 PathProgramCache]: Analyzing trace with hash -906458204, now seen corresponding path program 1 times [2025-04-14 00:06:14,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:06:14,105 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653682511] [2025-04-14 00:06:14,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:06:14,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:06:14,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-14 00:06:14,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-14 00:06:14,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:06:14,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:06:14,422 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 00:06:14,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:06:14,422 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653682511] [2025-04-14 00:06:14,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653682511] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:06:14,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:06:14,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-14 00:06:14,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716946393] [2025-04-14 00:06:14,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:06:14,423 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 00:06:14,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:06:14,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 00:06:14,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 00:06:14,424 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2025-04-14 00:06:14,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 00:06:14,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:06:14,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2025-04-14 00:06:14,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:06:17,282 INFO L116 PetriNetUnfolderBase]: 43795/57967 cut-off events. [2025-04-14 00:06:17,282 INFO L117 PetriNetUnfolderBase]: For 1704/1704 co-relation queries the response was YES. [2025-04-14 00:06:17,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118137 conditions, 57967 events. 43795/57967 cut-off events. For 1704/1704 co-relation queries the response was YES. Maximal size of possible extension queue 1737. Compared 340347 event pairs, 10003 based on Foata normal form. 1728/59682 useless extension candidates. Maximal degree in co-relation 118127. Up to 50437 conditions per place. [2025-04-14 00:06:17,540 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 56 selfloop transitions, 3 changer transitions 38/101 dead transitions. [2025-04-14 00:06:17,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 101 transitions, 418 flow [2025-04-14 00:06:17,541 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 00:06:17,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-14 00:06:17,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2025-04-14 00:06:17,541 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6043478260869565 [2025-04-14 00:06:17,542 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 92 flow. Second operand 5 states and 139 transitions. [2025-04-14 00:06:17,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 101 transitions, 418 flow [2025-04-14 00:06:17,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 101 transitions, 408 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-14 00:06:17,548 INFO L231 Difference]: Finished difference. Result has 56 places, 42 transitions, 115 flow [2025-04-14 00:06:17,548 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=115, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2025-04-14 00:06:17,549 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 1 predicate places. [2025-04-14 00:06:17,549 INFO L485 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 115 flow [2025-04-14 00:06:17,549 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 00:06:17,549 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:06:17,549 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:06:17,549 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 00:06:17,549 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:06:17,550 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:06:17,550 INFO L85 PathProgramCache]: Analyzing trace with hash 772980645, now seen corresponding path program 1 times [2025-04-14 00:06:17,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:06:17,550 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690294348] [2025-04-14 00:06:17,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:06:17,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:06:17,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-14 00:06:17,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-14 00:06:17,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:06:17,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:06:17,740 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 00:06:17,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:06:17,741 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690294348] [2025-04-14 00:06:17,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690294348] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:06:17,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:06:17,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-14 00:06:17,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654244001] [2025-04-14 00:06:17,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:06:17,741 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 00:06:17,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:06:17,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 00:06:17,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 00:06:17,742 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2025-04-14 00:06:17,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 00:06:17,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:06:17,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2025-04-14 00:06:17,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:06:20,922 INFO L116 PetriNetUnfolderBase]: 39791/52661 cut-off events. [2025-04-14 00:06:20,922 INFO L117 PetriNetUnfolderBase]: For 14874/14874 co-relation queries the response was YES. [2025-04-14 00:06:21,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117494 conditions, 52661 events. 39791/52661 cut-off events. For 14874/14874 co-relation queries the response was YES. Maximal size of possible extension queue 1497. Compared 294811 event pairs, 11945 based on Foata normal form. 1632/54274 useless extension candidates. Maximal degree in co-relation 117481. Up to 31953 conditions per place. [2025-04-14 00:06:21,216 INFO L140 encePairwiseOnDemand]: 42/46 looper letters, 57 selfloop transitions, 2 changer transitions 38/101 dead transitions. [2025-04-14 00:06:21,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 101 transitions, 459 flow [2025-04-14 00:06:21,216 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 00:06:21,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-14 00:06:21,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2025-04-14 00:06:21,221 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305 [2025-04-14 00:06:21,221 INFO L175 Difference]: Start difference. First operand has 56 places, 42 transitions, 115 flow. Second operand 5 states and 135 transitions. [2025-04-14 00:06:21,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 101 transitions, 459 flow [2025-04-14 00:06:21,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 101 transitions, 452 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-04-14 00:06:21,261 INFO L231 Difference]: Finished difference. Result has 59 places, 42 transitions, 122 flow [2025-04-14 00:06:21,262 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2025-04-14 00:06:21,263 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 4 predicate places. [2025-04-14 00:06:21,263 INFO L485 AbstractCegarLoop]: Abstraction has has 59 places, 42 transitions, 122 flow [2025-04-14 00:06:21,263 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 00:06:21,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:06:21,263 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 00:06:21,263 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-14 00:06:21,263 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:06:21,264 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:06:21,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1149181048, now seen corresponding path program 1 times [2025-04-14 00:06:21,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:06:21,265 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121203793] [2025-04-14 00:06:21,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:06:21,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:06:21,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-14 00:06:21,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-14 00:06:21,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:06:21,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:06:21,682 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 00:06:21,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:06:21,683 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121203793] [2025-04-14 00:06:21,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121203793] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:06:21,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:06:21,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 00:06:21,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135829637] [2025-04-14 00:06:21,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:06:21,683 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 00:06:21,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:06:21,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 00:06:21,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 00:06:21,684 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2025-04-14 00:06:21,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 42 transitions, 122 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 00:06:21,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:06:21,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2025-04-14 00:06:21,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:06:27,195 INFO L116 PetriNetUnfolderBase]: 68963/91441 cut-off events. [2025-04-14 00:06:27,195 INFO L117 PetriNetUnfolderBase]: For 34687/34687 co-relation queries the response was YES. [2025-04-14 00:06:27,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208879 conditions, 91441 events. 68963/91441 cut-off events. For 34687/34687 co-relation queries the response was YES. Maximal size of possible extension queue 2274. Compared 549913 event pairs, 5905 based on Foata normal form. 1908/93345 useless extension candidates. Maximal degree in co-relation 208863. Up to 50217 conditions per place. [2025-04-14 00:06:27,726 INFO L140 encePairwiseOnDemand]: 33/46 looper letters, 81 selfloop transitions, 15 changer transitions 51/151 dead transitions. [2025-04-14 00:06:27,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 151 transitions, 694 flow [2025-04-14 00:06:27,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 00:06:27,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-14 00:06:27,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2025-04-14 00:06:27,728 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6273291925465838 [2025-04-14 00:06:27,728 INFO L175 Difference]: Start difference. First operand has 59 places, 42 transitions, 122 flow. Second operand 7 states and 202 transitions. [2025-04-14 00:06:27,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 151 transitions, 694 flow [2025-04-14 00:06:29,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 151 transitions, 678 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-04-14 00:06:29,147 INFO L231 Difference]: Finished difference. Result has 65 places, 56 transitions, 259 flow [2025-04-14 00:06:29,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=259, PETRI_PLACES=65, PETRI_TRANSITIONS=56} [2025-04-14 00:06:29,148 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 10 predicate places. [2025-04-14 00:06:29,148 INFO L485 AbstractCegarLoop]: Abstraction has has 65 places, 56 transitions, 259 flow [2025-04-14 00:06:29,148 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 00:06:29,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:06:29,148 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 00:06:29,148 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-14 00:06:29,149 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:06:29,149 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:06:29,149 INFO L85 PathProgramCache]: Analyzing trace with hash -503188500, now seen corresponding path program 1 times [2025-04-14 00:06:29,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:06:29,149 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226460632] [2025-04-14 00:06:29,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:06:29,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:06:29,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-14 00:06:29,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-14 00:06:29,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:06:29,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:06:29,512 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 00:06:29,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:06:29,512 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226460632] [2025-04-14 00:06:29,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226460632] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:06:29,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:06:29,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:06:29,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294442172] [2025-04-14 00:06:29,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:06:29,512 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 00:06:29,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:06:29,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 00:06:29,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 00:06:29,513 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2025-04-14 00:06:29,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 56 transitions, 259 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 00:06:29,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:06:29,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2025-04-14 00:06:29,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:06:37,630 INFO L116 PetriNetUnfolderBase]: 97123/129639 cut-off events. [2025-04-14 00:06:37,630 INFO L117 PetriNetUnfolderBase]: For 136913/136916 co-relation queries the response was YES. [2025-04-14 00:06:38,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357563 conditions, 129639 events. 97123/129639 cut-off events. For 136913/136916 co-relation queries the response was YES. Maximal size of possible extension queue 3107. Compared 816315 event pairs, 18603 based on Foata normal form. 2200/131829 useless extension candidates. Maximal degree in co-relation 357543. Up to 57008 conditions per place. [2025-04-14 00:06:38,400 INFO L140 encePairwiseOnDemand]: 33/46 looper letters, 91 selfloop transitions, 21 changer transitions 52/168 dead transitions. [2025-04-14 00:06:38,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 168 transitions, 979 flow [2025-04-14 00:06:38,400 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 00:06:38,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-14 00:06:38,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 203 transitions. [2025-04-14 00:06:38,401 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6304347826086957 [2025-04-14 00:06:38,401 INFO L175 Difference]: Start difference. First operand has 65 places, 56 transitions, 259 flow. Second operand 7 states and 203 transitions. [2025-04-14 00:06:38,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 168 transitions, 979 flow [2025-04-14 00:06:40,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 168 transitions, 957 flow, removed 11 selfloop flow, removed 2 redundant places. [2025-04-14 00:06:40,186 INFO L231 Difference]: Finished difference. Result has 72 places, 68 transitions, 442 flow [2025-04-14 00:06:40,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=442, PETRI_PLACES=72, PETRI_TRANSITIONS=68} [2025-04-14 00:06:40,187 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 17 predicate places. [2025-04-14 00:06:40,187 INFO L485 AbstractCegarLoop]: Abstraction has has 72 places, 68 transitions, 442 flow [2025-04-14 00:06:40,187 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 00:06:40,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:06:40,187 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 00:06:40,187 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-14 00:06:40,187 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:06:40,188 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:06:40,188 INFO L85 PathProgramCache]: Analyzing trace with hash 786018423, now seen corresponding path program 1 times [2025-04-14 00:06:40,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:06:40,188 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652377974] [2025-04-14 00:06:40,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:06:40,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:06:40,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-14 00:06:40,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-14 00:06:40,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:06:40,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:06:40,371 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 00:06:40,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:06:40,371 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652377974] [2025-04-14 00:06:40,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652377974] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:06:40,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:06:40,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 00:06:40,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692981195] [2025-04-14 00:06:40,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:06:40,372 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 00:06:40,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:06:40,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 00:06:40,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 00:06:40,372 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2025-04-14 00:06:40,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 442 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:06:40,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:06:40,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2025-04-14 00:06:40,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:06:47,273 INFO L116 PetriNetUnfolderBase]: 88562/119506 cut-off events. [2025-04-14 00:06:47,273 INFO L117 PetriNetUnfolderBase]: For 243846/243864 co-relation queries the response was YES. [2025-04-14 00:06:47,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364572 conditions, 119506 events. 88562/119506 cut-off events. For 243846/243864 co-relation queries the response was YES. Maximal size of possible extension queue 3180. Compared 767649 event pairs, 12144 based on Foata normal form. 4792/124286 useless extension candidates. Maximal degree in co-relation 364546. Up to 62441 conditions per place. [2025-04-14 00:06:47,954 INFO L140 encePairwiseOnDemand]: 39/46 looper letters, 140 selfloop transitions, 6 changer transitions 7/157 dead transitions. [2025-04-14 00:06:47,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 157 transitions, 1356 flow [2025-04-14 00:06:47,955 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 00:06:47,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-14 00:06:47,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2025-04-14 00:06:47,956 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6413043478260869 [2025-04-14 00:06:47,956 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 442 flow. Second operand 4 states and 118 transitions. [2025-04-14 00:06:47,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 157 transitions, 1356 flow [2025-04-14 00:06:48,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 157 transitions, 1330 flow, removed 13 selfloop flow, removed 1 redundant places. [2025-04-14 00:06:48,356 INFO L231 Difference]: Finished difference. Result has 73 places, 71 transitions, 466 flow [2025-04-14 00:06:48,356 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=466, PETRI_PLACES=73, PETRI_TRANSITIONS=71} [2025-04-14 00:06:48,358 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 18 predicate places. [2025-04-14 00:06:48,358 INFO L485 AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 466 flow [2025-04-14 00:06:48,358 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:06:48,358 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:06:48,358 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 00:06:48,358 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-14 00:06:48,359 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:06:48,359 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:06:48,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1290055362, now seen corresponding path program 1 times [2025-04-14 00:06:48,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:06:48,363 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80531742] [2025-04-14 00:06:48,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:06:48,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:06:48,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-14 00:06:48,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 00:06:48,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:06:48,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:06:48,560 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 00:06:48,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:06:48,560 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80531742] [2025-04-14 00:06:48,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80531742] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:06:48,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:06:48,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 00:06:48,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81047215] [2025-04-14 00:06:48,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:06:48,561 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 00:06:48,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:06:48,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 00:06:48,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 00:06:48,562 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2025-04-14 00:06:48,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 71 transitions, 466 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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 00:06:48,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:06:48,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2025-04-14 00:06:48,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:06:59,309 INFO L116 PetriNetUnfolderBase]: 115958/156338 cut-off events. [2025-04-14 00:06:59,310 INFO L117 PetriNetUnfolderBase]: For 297944/297972 co-relation queries the response was YES. [2025-04-14 00:06:59,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513224 conditions, 156338 events. 115958/156338 cut-off events. For 297944/297972 co-relation queries the response was YES. Maximal size of possible extension queue 3832. Compared 1015667 event pairs, 54357 based on Foata normal form. 1812/158134 useless extension candidates. Maximal degree in co-relation 513195. Up to 75385 conditions per place. [2025-04-14 00:07:00,239 INFO L140 encePairwiseOnDemand]: 42/46 looper letters, 95 selfloop transitions, 7 changer transitions 46/152 dead transitions. [2025-04-14 00:07:00,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 152 transitions, 1203 flow [2025-04-14 00:07:00,239 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 00:07:00,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-14 00:07:00,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2025-04-14 00:07:00,240 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6130434782608696 [2025-04-14 00:07:00,240 INFO L175 Difference]: Start difference. First operand has 73 places, 71 transitions, 466 flow. Second operand 5 states and 141 transitions. [2025-04-14 00:07:00,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 152 transitions, 1203 flow [2025-04-14 00:07:00,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 152 transitions, 1147 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-04-14 00:07:00,769 INFO L231 Difference]: Finished difference. Result has 77 places, 70 transitions, 454 flow [2025-04-14 00:07:00,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=454, PETRI_PLACES=77, PETRI_TRANSITIONS=70} [2025-04-14 00:07:00,770 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 22 predicate places. [2025-04-14 00:07:00,770 INFO L485 AbstractCegarLoop]: Abstraction has has 77 places, 70 transitions, 454 flow [2025-04-14 00:07:00,770 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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 00:07:00,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:07:00,770 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 00:07:00,771 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-14 00:07:00,771 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:07:00,771 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:07:00,771 INFO L85 PathProgramCache]: Analyzing trace with hash -653656466, now seen corresponding path program 1 times [2025-04-14 00:07:00,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:07:00,771 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729642253] [2025-04-14 00:07:00,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:07:00,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:07:00,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-14 00:07:00,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 00:07:00,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:07:00,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:07:01,314 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 00:07:01,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:07:01,314 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729642253] [2025-04-14 00:07:01,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729642253] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:07:01,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:07:01,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:07:01,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782688578] [2025-04-14 00:07:01,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:07:01,315 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 00:07:01,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:07:01,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 00:07:01,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-14 00:07:01,315 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2025-04-14 00:07:01,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 70 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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 00:07:01,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:07:01,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2025-04-14 00:07:01,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:07:13,126 INFO L116 PetriNetUnfolderBase]: 141382/190616 cut-off events. [2025-04-14 00:07:13,126 INFO L117 PetriNetUnfolderBase]: For 369733/369751 co-relation queries the response was YES. [2025-04-14 00:07:13,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607353 conditions, 190616 events. 141382/190616 cut-off events. For 369733/369751 co-relation queries the response was YES. Maximal size of possible extension queue 5077. Compared 1262136 event pairs, 24413 based on Foata normal form. 2386/192987 useless extension candidates. Maximal degree in co-relation 607323. Up to 107085 conditions per place. [2025-04-14 00:07:14,229 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 125 selfloop transitions, 10 changer transitions 64/203 dead transitions. [2025-04-14 00:07:14,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 203 transitions, 1725 flow [2025-04-14 00:07:14,229 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 00:07:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-14 00:07:14,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2025-04-14 00:07:14,230 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2025-04-14 00:07:14,230 INFO L175 Difference]: Start difference. First operand has 77 places, 70 transitions, 454 flow. Second operand 6 states and 161 transitions. [2025-04-14 00:07:14,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 203 transitions, 1725 flow [2025-04-14 00:07:15,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 203 transitions, 1696 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-04-14 00:07:15,860 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 541 flow [2025-04-14 00:07:15,860 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=541, PETRI_PLACES=80, PETRI_TRANSITIONS=75} [2025-04-14 00:07:15,861 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 25 predicate places. [2025-04-14 00:07:15,861 INFO L485 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 541 flow [2025-04-14 00:07:15,861 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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 00:07:15,861 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:07:15,861 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 00:07:15,861 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-14 00:07:15,861 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:07:15,862 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:07:15,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1430777484, now seen corresponding path program 1 times [2025-04-14 00:07:15,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:07:15,862 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852209385] [2025-04-14 00:07:15,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:07:15,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:07:15,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-14 00:07:15,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 00:07:15,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:07:15,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:07:16,585 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 00:07:16,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:07:16,585 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852209385] [2025-04-14 00:07:16,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852209385] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:07:16,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:07:16,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-14 00:07:16,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710172881] [2025-04-14 00:07:16,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:07:16,586 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-14 00:07:16,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:07:16,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-14 00:07:16,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-04-14 00:07:16,586 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2025-04-14 00:07:16,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 541 flow. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 00:07:16,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:07:16,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2025-04-14 00:07:16,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:07:31,480 INFO L116 PetriNetUnfolderBase]: 173281/233213 cut-off events. [2025-04-14 00:07:31,480 INFO L117 PetriNetUnfolderBase]: For 491738/491756 co-relation queries the response was YES. [2025-04-14 00:07:32,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 777913 conditions, 233213 events. 173281/233213 cut-off events. For 491738/491756 co-relation queries the response was YES. Maximal size of possible extension queue 6688. Compared 1579907 event pairs, 37955 based on Foata normal form. 1618/234816 useless extension candidates. Maximal degree in co-relation 777881. Up to 169165 conditions per place. [2025-04-14 00:07:32,726 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 140 selfloop transitions, 16 changer transitions 62/222 dead transitions. [2025-04-14 00:07:32,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 222 transitions, 1968 flow [2025-04-14 00:07:32,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 00:07:32,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-14 00:07:32,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 179 transitions. [2025-04-14 00:07:32,728 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5559006211180124 [2025-04-14 00:07:32,728 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 541 flow. Second operand 7 states and 179 transitions. [2025-04-14 00:07:32,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 222 transitions, 1968 flow [2025-04-14 00:07:34,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 222 transitions, 1947 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-04-14 00:07:34,340 INFO L231 Difference]: Finished difference. Result has 86 places, 86 transitions, 722 flow [2025-04-14 00:07:34,341 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=722, PETRI_PLACES=86, PETRI_TRANSITIONS=86} [2025-04-14 00:07:34,341 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 31 predicate places. [2025-04-14 00:07:34,341 INFO L485 AbstractCegarLoop]: Abstraction has has 86 places, 86 transitions, 722 flow [2025-04-14 00:07:34,341 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 00:07:34,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:07:34,341 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 00:07:34,342 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-14 00:07:34,342 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:07:34,342 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:07:34,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1905834786, now seen corresponding path program 2 times [2025-04-14 00:07:34,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:07:34,342 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491109585] [2025-04-14 00:07:34,342 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 00:07:34,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:07:34,349 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 1 equivalence classes. [2025-04-14 00:07:34,367 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 00:07:34,367 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-14 00:07:34,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:07:35,063 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 00:07:35,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:07:35,064 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491109585] [2025-04-14 00:07:35,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491109585] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:07:35,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:07:35,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-14 00:07:35,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175058911] [2025-04-14 00:07:35,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:07:35,064 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-14 00:07:35,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:07:35,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-14 00:07:35,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-04-14 00:07:35,065 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2025-04-14 00:07:35,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 86 transitions, 722 flow. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 00:07:35,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:07:35,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2025-04-14 00:07:35,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:07:54,555 INFO L116 PetriNetUnfolderBase]: 200739/272291 cut-off events. [2025-04-14 00:07:54,556 INFO L117 PetriNetUnfolderBase]: For 754973/754991 co-relation queries the response was YES. [2025-04-14 00:07:55,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 935123 conditions, 272291 events. 200739/272291 cut-off events. For 754973/754991 co-relation queries the response was YES. Maximal size of possible extension queue 7544. Compared 1921380 event pairs, 35508 based on Foata normal form. 2994/275270 useless extension candidates. Maximal degree in co-relation 935087. Up to 158732 conditions per place. [2025-04-14 00:07:56,163 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 141 selfloop transitions, 12 changer transitions 55/212 dead transitions. [2025-04-14 00:07:56,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 212 transitions, 2070 flow [2025-04-14 00:07:56,163 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-14 00:07:56,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-04-14 00:07:56,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 167 transitions. [2025-04-14 00:07:56,164 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5186335403726708 [2025-04-14 00:07:56,164 INFO L175 Difference]: Start difference. First operand has 86 places, 86 transitions, 722 flow. Second operand 7 states and 167 transitions. [2025-04-14 00:07:56,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 212 transitions, 2070 flow [2025-04-14 00:08:03,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 212 transitions, 2021 flow, removed 20 selfloop flow, removed 3 redundant places. [2025-04-14 00:08:03,773 INFO L231 Difference]: Finished difference. Result has 90 places, 90 transitions, 792 flow [2025-04-14 00:08:03,773 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=792, PETRI_PLACES=90, PETRI_TRANSITIONS=90} [2025-04-14 00:08:03,774 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 35 predicate places. [2025-04-14 00:08:03,774 INFO L485 AbstractCegarLoop]: Abstraction has has 90 places, 90 transitions, 792 flow [2025-04-14 00:08:03,774 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 00:08:03,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:08:03,774 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 00:08:03,774 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-14 00:08:03,775 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:08:03,775 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:08:03,775 INFO L85 PathProgramCache]: Analyzing trace with hash 66519513, now seen corresponding path program 1 times [2025-04-14 00:08:03,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:08:03,775 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708746143] [2025-04-14 00:08:03,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:08:03,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:08:03,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-14 00:08:03,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 00:08:03,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:08:03,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:08:03,949 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 00:08:03,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:08:03,950 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708746143] [2025-04-14 00:08:03,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708746143] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:08:03,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:08:03,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:08:03,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249160404] [2025-04-14 00:08:03,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:08:03,950 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 00:08:03,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:08:03,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 00:08:03,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 00:08:03,951 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2025-04-14 00:08:03,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 90 transitions, 792 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:08:03,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:08:03,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2025-04-14 00:08:03,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:08:18,614 INFO L116 PetriNetUnfolderBase]: 158907/218511 cut-off events. [2025-04-14 00:08:18,614 INFO L117 PetriNetUnfolderBase]: For 556717/556735 co-relation queries the response was YES. [2025-04-14 00:08:19,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 724715 conditions, 218511 events. 158907/218511 cut-off events. For 556717/556735 co-relation queries the response was YES. Maximal size of possible extension queue 6487. Compared 1566551 event pairs, 13719 based on Foata normal form. 11212/229711 useless extension candidates. Maximal degree in co-relation 724677. Up to 78353 conditions per place. [2025-04-14 00:08:20,034 INFO L140 encePairwiseOnDemand]: 39/46 looper letters, 219 selfloop transitions, 10 changer transitions 31/264 dead transitions. [2025-04-14 00:08:20,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 264 transitions, 2880 flow [2025-04-14 00:08:20,035 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 00:08:20,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-14 00:08:20,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 153 transitions. [2025-04-14 00:08:20,036 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.6652173913043479 [2025-04-14 00:08:20,036 INFO L175 Difference]: Start difference. First operand has 90 places, 90 transitions, 792 flow. Second operand 5 states and 153 transitions. [2025-04-14 00:08:20,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 264 transitions, 2880 flow [2025-04-14 00:08:21,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 264 transitions, 2781 flow, removed 24 selfloop flow, removed 5 redundant places. [2025-04-14 00:08:21,626 INFO L231 Difference]: Finished difference. Result has 89 places, 90 transitions, 756 flow [2025-04-14 00:08:21,626 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=756, PETRI_PLACES=89, PETRI_TRANSITIONS=90} [2025-04-14 00:08:21,627 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 34 predicate places. [2025-04-14 00:08:21,627 INFO L485 AbstractCegarLoop]: Abstraction has has 89 places, 90 transitions, 756 flow [2025-04-14 00:08:21,627 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:08:21,627 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:08:21,627 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] [2025-04-14 00:08:21,627 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-14 00:08:21,627 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:08:21,628 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:08:21,628 INFO L85 PathProgramCache]: Analyzing trace with hash -92459496, now seen corresponding path program 1 times [2025-04-14 00:08:21,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:08:21,628 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390083516] [2025-04-14 00:08:21,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:08:21,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:08:21,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-04-14 00:08:21,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-04-14 00:08:21,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:08:21,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:08:21,748 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 00:08:21,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:08:21,749 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390083516] [2025-04-14 00:08:21,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390083516] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:08:21,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:08:21,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-14 00:08:21,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606227562] [2025-04-14 00:08:21,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:08:21,749 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 00:08:21,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:08:21,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 00:08:21,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-04-14 00:08:21,750 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2025-04-14 00:08:21,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 90 transitions, 756 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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 00:08:21,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:08:21,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2025-04-14 00:08:21,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand