/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.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i


--------------------------------------------------------------------------------


This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m
[2025-04-13 19:36:32,668 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-04-13 19:36:32,716 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
[2025-04-13 19:36:32,719 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-04-13 19:36:32,719 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-04-13 19:36:32,740 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-04-13 19:36:32,740 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-04-13 19:36:32,740 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-04-13 19:36:32,740 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-04-13 19:36:32,741 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-04-13 19:36:32,741 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-04-13 19:36:32,741 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-04-13 19:36:32,741 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-04-13 19:36:32,741 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-04-13 19:36:32,741 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-04-13 19:36:32,741 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-04-13 19:36:32,741 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-04-13 19:36:32,741 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-04-13 19:36:32,741 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-04-13 19:36:32,742 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-04-13 19:36:32,742 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-04-13 19:36:32,743 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-04-13 19:36:32,743 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-04-13 19:36:32,743 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-04-13 19:36:32,743 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-04-13 19:36:32,743 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-04-13 19:36:32,743 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-04-13 19:36:32,743 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-04-13 19:36:32,744 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-04-13 19:36:32,744 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-13 19:36:32,744 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-04-13 19:36:32,744 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-13 19:36:32,744 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-04-13 19:36:32,744 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-04-13 19:36:32,744 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-13 19:36:32,744 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-04-13 19:36:32,744 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-13 19:36:32,744 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-04-13 19:36:32,744 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-04-13 19:36:32,744 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-04-13 19:36:32,744 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-04-13 19:36:32,744 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-04-13 19:36:32,744 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-04-13 19:36:32,745 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-04-13 19:36:32,745 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-04-13 19:36:32,745 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-04-13 19:36:32,745 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-04-13 19:36:32,745 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
[2025-04-13 19:36:32,992 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-04-13 19:36:32,999 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-04-13 19:36:33,000 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-04-13 19:36:33,001 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-04-13 19:36:33,002 INFO  L274        PluginConnector]: CDTParser initialized
[2025-04-13 19:36:33,003 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i
[2025-04-13 19:36:34,317 INFO  L538              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/396e9418b/e801920c94c94a8e866676ac3404bd44/FLAGa34334146
[2025-04-13 19:36:34,593 INFO  L389              CDTParser]: Found 1 translation units.
[2025-04-13 19:36:34,596 INFO  L178              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i
[2025-04-13 19:36:34,611 INFO  L432              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/396e9418b/e801920c94c94a8e866676ac3404bd44/FLAGa34334146
[2025-04-13 19:36:35,519 INFO  L440              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/396e9418b/e801920c94c94a8e866676ac3404bd44
[2025-04-13 19:36:35,521 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-04-13 19:36:35,522 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2025-04-13 19:36:35,523 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-04-13 19:36:35,523 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-04-13 19:36:35,528 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-04-13 19:36:35,529 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:35,529 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c2cf15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35, skipping insertion in model container
[2025-04-13 19:36:35,529 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:35,551 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-04-13 19:36:35,708 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/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988]
[2025-04-13 19:36:35,861 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-04-13 19:36:35,877 INFO  L200         MainTranslator]: Completed pre-run
[2025-04-13 19:36:35,893 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/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988]
[2025-04-13 19:36:35,920 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-04-13 19:36:35,959 INFO  L204         MainTranslator]: Completed translation
[2025-04-13 19:36:35,959 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35 WrapperNode
[2025-04-13 19:36:35,959 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-04-13 19:36:35,960 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-04-13 19:36:35,960 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-04-13 19:36:35,960 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-04-13 19:36:35,964 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:35,978 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:35,990 INFO  L138                Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58
[2025-04-13 19:36:35,991 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-04-13 19:36:35,991 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-04-13 19:36:35,991 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-04-13 19:36:35,991 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-04-13 19:36:35,996 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:35,996 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:35,998 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:36,006 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].
[2025-04-13 19:36:36,006 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:36,006 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:36,009 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:36,009 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:36,010 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:36,011 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:36,011 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:36,014 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-04-13 19:36:36,015 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-04-13 19:36:36,015 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-04-13 19:36:36,015 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-04-13 19:36:36,016 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (1/1) ...
[2025-04-13 19:36:36,019 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-04-13 19:36:36,036 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-04-13 19:36:36,060 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)
[2025-04-13 19:36:36,062 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
[2025-04-13 19:36:36,079 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2025-04-13 19:36:36,079 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-04-13 19:36:36,079 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2025-04-13 19:36:36,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2025-04-13 19:36:36,079 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2025-04-13 19:36:36,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2025-04-13 19:36:36,079 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2025-04-13 19:36:36,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2025-04-13 19:36:36,079 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-04-13 19:36:36,079 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2025-04-13 19:36:36,079 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-04-13 19:36:36,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-04-13 19:36:36,080 WARN  L203             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2025-04-13 19:36:36,163 INFO  L234             CfgBuilder]: Building ICFG
[2025-04-13 19:36:36,164 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-04-13 19:36:36,275 INFO  L279             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2025-04-13 19:36:36,276 INFO  L289             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-04-13 19:36:36,276 INFO  L294             CfgBuilder]: Performing block encoding
[2025-04-13 19:36:36,372 INFO  L313             CfgBuilder]: Removed 0 assume(true) statements.
[2025-04-13 19:36:36,373 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:36:36 BoogieIcfgContainer
[2025-04-13 19:36:36,373 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-04-13 19:36:36,375 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-04-13 19:36:36,375 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-04-13 19:36:36,380 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-04-13 19:36:36,380 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 07:36:35" (1/3) ...
[2025-04-13 19:36:36,380 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3d3f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:36:36, skipping insertion in model container
[2025-04-13 19:36:36,380 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:36:35" (2/3) ...
[2025-04-13 19:36:36,381 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3d3f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:36:36, skipping insertion in model container
[2025-04-13 19:36:36,381 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:36:36" (3/3) ...
[2025-04-13 19:36:36,381 INFO  L128   eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i
[2025-04-13 19:36:36,391 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-04-13 19:36:36,392 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 4 procedures, 35 locations, 31 edges, 1 initial locations, 0 loop locations, and 1 error locations.
[2025-04-13 19:36:36,392 INFO  L490   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2025-04-13 19:36:36,430 INFO  L143    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2025-04-13 19:36:36,457 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 44 places, 34 transitions, 80 flow
[2025-04-13 19:36:36,476 INFO  L116   PetriNetUnfolderBase]: 0/31 cut-off events.
[2025-04-13 19:36:36,478 INFO  L117   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2025-04-13 19:36:36,479 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 41 conditions, 31 events. 0/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. 
[2025-04-13 19:36:36,479 INFO  L82        GeneralOperation]: Start removeDead. Operand has 44 places, 34 transitions, 80 flow
[2025-04-13 19:36:36,481 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 40 places, 30 transitions, 69 flow
[2025-04-13 19:36:36,487 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-04-13 19:36:36,498 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;@6e3e4351, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-04-13 19:36:36,498 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2025-04-13 19:36:36,505 INFO  L177   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2025-04-13 19:36:36,505 INFO  L116   PetriNetUnfolderBase]: 0/28 cut-off events.
[2025-04-13 19:36:36,505 INFO  L117   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2025-04-13 19:36:36,505 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-04-13 19:36:36,506 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-13 19:36:36,506 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2025-04-13 19:36:36,509 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-13 19:36:36,510 INFO  L85        PathProgramCache]: Analyzing trace with hash 250654454, now seen corresponding path program 1 times
[2025-04-13 19:36:36,515 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-13 19:36:36,515 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951220994]
[2025-04-13 19:36:36,515 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-13 19:36:36,515 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-13 19:36:36,580 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes.
[2025-04-13 19:36:36,608 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements.
[2025-04-13 19:36:36,608 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-13 19:36:36,609 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-13 19:36:36,934 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-13 19:36:36,935 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-13 19:36:36,935 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951220994]
[2025-04-13 19:36:36,937 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951220994] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-13 19:36:36,937 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-13 19:36:36,938 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-04-13 19:36:36,939 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092858904]
[2025-04-13 19:36:36,939 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-13 19:36:36,944 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-04-13 19:36:36,947 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-13 19:36:36,965 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-04-13 19:36:36,965 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-04-13 19:36:36,976 INFO  L464   CegarLoopForPetriNet]: Number of universal loopers: 17 out of 34
[2025-04-13 19:36:36,978 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 69 flow. Second operand  has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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)
[2025-04-13 19:36:36,978 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-04-13 19:36:36,978 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 34
[2025-04-13 19:36:36,978 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2025-04-13 19:36:37,132 INFO  L116   PetriNetUnfolderBase]: 291/539 cut-off events.
[2025-04-13 19:36:37,133 INFO  L117   PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES.
[2025-04-13 19:36:37,136 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1045 conditions, 539 events. 291/539 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2721 event pairs, 58 based on Foata normal form. 27/558 useless extension candidates. Maximal degree in co-relation 1034. Up to 236 conditions per place. 
[2025-04-13 19:36:37,143 INFO  L140   encePairwiseOnDemand]: 28/34 looper letters, 25 selfloop transitions, 5 changer transitions 1/45 dead transitions.
[2025-04-13 19:36:37,143 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 167 flow
[2025-04-13 19:36:37,144 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-04-13 19:36:37,146 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2025-04-13 19:36:37,151 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions.
[2025-04-13 19:36:37,152 INFO  L509   CegarLoopForPetriNet]: DFA transition density 0.7426470588235294
[2025-04-13 19:36:37,153 INFO  L175             Difference]: Start difference. First operand has 40 places, 30 transitions, 69 flow. Second operand 4 states and 101 transitions.
[2025-04-13 19:36:37,153 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 167 flow
[2025-04-13 19:36:37,158 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 162 flow, removed 0 selfloop flow, removed 3 redundant places.
[2025-04-13 19:36:37,160 INFO  L231             Difference]: Finished difference. Result has 42 places, 33 transitions, 100 flow
[2025-04-13 19:36:37,162 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=42, PETRI_TRANSITIONS=33}
[2025-04-13 19:36:37,165 INFO  L279   CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places.
[2025-04-13 19:36:37,165 INFO  L485      AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 100 flow
[2025-04-13 19:36:37,166 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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)
[2025-04-13 19:36:37,166 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-04-13 19:36:37,166 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-13 19:36:37,166 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-04-13 19:36:37,167 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2025-04-13 19:36:37,167 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-13 19:36:37,167 INFO  L85        PathProgramCache]: Analyzing trace with hash 1612671884, now seen corresponding path program 1 times
[2025-04-13 19:36:37,167 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-13 19:36:37,167 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929656293]
[2025-04-13 19:36:37,167 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-13 19:36:37,168 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-13 19:36:37,175 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes.
[2025-04-13 19:36:37,188 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements.
[2025-04-13 19:36:37,188 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-13 19:36:37,189 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-13 19:36:37,345 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-13 19:36:37,345 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-13 19:36:37,345 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929656293]
[2025-04-13 19:36:37,345 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929656293] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-13 19:36:37,345 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-13 19:36:37,345 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-04-13 19:36:37,345 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319370438]
[2025-04-13 19:36:37,345 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-13 19:36:37,346 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-04-13 19:36:37,346 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-13 19:36:37,346 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-04-13 19:36:37,347 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-04-13 19:36:37,351 INFO  L464   CegarLoopForPetriNet]: Number of universal loopers: 17 out of 34
[2025-04-13 19:36:37,351 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 100 flow. Second operand  has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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)
[2025-04-13 19:36:37,351 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-04-13 19:36:37,351 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 34
[2025-04-13 19:36:37,352 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2025-04-13 19:36:37,465 INFO  L116   PetriNetUnfolderBase]: 249/466 cut-off events.
[2025-04-13 19:36:37,465 INFO  L117   PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES.
[2025-04-13 19:36:37,466 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 466 events. 249/466 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2106 event pairs, 15 based on Foata normal form. 26/485 useless extension candidates. Maximal degree in co-relation 1132. Up to 188 conditions per place. 
[2025-04-13 19:36:37,468 INFO  L140   encePairwiseOnDemand]: 28/34 looper letters, 31 selfloop transitions, 8 changer transitions 1/54 dead transitions.
[2025-04-13 19:36:37,468 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 54 transitions, 243 flow
[2025-04-13 19:36:37,468 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-04-13 19:36:37,468 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2025-04-13 19:36:37,469 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions.
[2025-04-13 19:36:37,469 INFO  L509   CegarLoopForPetriNet]: DFA transition density 0.7470588235294118
[2025-04-13 19:36:37,469 INFO  L175             Difference]: Start difference. First operand has 42 places, 33 transitions, 100 flow. Second operand 5 states and 127 transitions.
[2025-04-13 19:36:37,469 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 54 transitions, 243 flow
[2025-04-13 19:36:37,470 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 54 transitions, 233 flow, removed 1 selfloop flow, removed 2 redundant places.
[2025-04-13 19:36:37,472 INFO  L231             Difference]: Finished difference. Result has 46 places, 36 transitions, 140 flow
[2025-04-13 19:36:37,472 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=140, PETRI_PLACES=46, PETRI_TRANSITIONS=36}
[2025-04-13 19:36:37,473 INFO  L279   CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places.
[2025-04-13 19:36:37,473 INFO  L485      AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 140 flow
[2025-04-13 19:36:37,473 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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)
[2025-04-13 19:36:37,473 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-04-13 19:36:37,473 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]
[2025-04-13 19:36:37,474 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-04-13 19:36:37,474 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2025-04-13 19:36:37,475 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-13 19:36:37,475 INFO  L85        PathProgramCache]: Analyzing trace with hash -66324820, now seen corresponding path program 1 times
[2025-04-13 19:36:37,475 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-13 19:36:37,475 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649255125]
[2025-04-13 19:36:37,475 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-13 19:36:37,475 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-13 19:36:37,483 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes.
[2025-04-13 19:36:37,494 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements.
[2025-04-13 19:36:37,494 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-13 19:36:37,494 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-13 19:36:37,636 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-13 19:36:37,637 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-13 19:36:37,637 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649255125]
[2025-04-13 19:36:37,637 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649255125] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-13 19:36:37,637 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-13 19:36:37,637 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-04-13 19:36:37,637 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040147821]
[2025-04-13 19:36:37,637 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-13 19:36:37,637 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-04-13 19:36:37,637 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-13 19:36:37,637 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-04-13 19:36:37,637 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2025-04-13 19:36:37,641 INFO  L464   CegarLoopForPetriNet]: Number of universal loopers: 17 out of 34
[2025-04-13 19:36:37,641 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 140 flow. Second operand  has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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)
[2025-04-13 19:36:37,641 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-04-13 19:36:37,641 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 34
[2025-04-13 19:36:37,641 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2025-04-13 19:36:37,746 INFO  L116   PetriNetUnfolderBase]: 174/325 cut-off events.
[2025-04-13 19:36:37,746 INFO  L117   PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES.
[2025-04-13 19:36:37,747 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 924 conditions, 325 events. 174/325 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1138 event pairs, 6 based on Foata normal form. 20/338 useless extension candidates. Maximal degree in co-relation 910. Up to 108 conditions per place. 
[2025-04-13 19:36:37,748 INFO  L140   encePairwiseOnDemand]: 28/34 looper letters, 29 selfloop transitions, 11 changer transitions 1/55 dead transitions.
[2025-04-13 19:36:37,748 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 270 flow
[2025-04-13 19:36:37,749 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-04-13 19:36:37,749 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2025-04-13 19:36:37,749 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions.
[2025-04-13 19:36:37,750 INFO  L509   CegarLoopForPetriNet]: DFA transition density 0.7107843137254902
[2025-04-13 19:36:37,750 INFO  L175             Difference]: Start difference. First operand has 46 places, 36 transitions, 140 flow. Second operand 6 states and 145 transitions.
[2025-04-13 19:36:37,750 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 270 flow
[2025-04-13 19:36:37,751 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 55 transitions, 245 flow, removed 4 selfloop flow, removed 4 redundant places.
[2025-04-13 19:36:37,752 INFO  L231             Difference]: Finished difference. Result has 49 places, 36 transitions, 154 flow
[2025-04-13 19:36:37,752 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=49, PETRI_TRANSITIONS=36}
[2025-04-13 19:36:37,753 INFO  L279   CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places.
[2025-04-13 19:36:37,753 INFO  L485      AbstractCegarLoop]: Abstraction has has 49 places, 36 transitions, 154 flow
[2025-04-13 19:36:37,753 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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)
[2025-04-13 19:36:37,753 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-04-13 19:36:37,753 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-13 19:36:37,753 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-04-13 19:36:37,753 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2025-04-13 19:36:37,754 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-13 19:36:37,754 INFO  L85        PathProgramCache]: Analyzing trace with hash -167064122, now seen corresponding path program 1 times
[2025-04-13 19:36:37,754 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-13 19:36:37,754 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997205965]
[2025-04-13 19:36:37,754 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-13 19:36:37,754 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-13 19:36:37,761 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes.
[2025-04-13 19:36:37,772 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements.
[2025-04-13 19:36:37,772 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-13 19:36:37,772 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-13 19:36:37,936 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-13 19:36:37,936 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-13 19:36:37,936 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997205965]
[2025-04-13 19:36:37,936 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997205965] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-13 19:36:37,936 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-13 19:36:37,936 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-04-13 19:36:37,936 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183220121]
[2025-04-13 19:36:37,936 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-13 19:36:37,936 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-04-13 19:36:37,937 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-13 19:36:37,937 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-04-13 19:36:37,937 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2025-04-13 19:36:37,949 INFO  L464   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34
[2025-04-13 19:36:37,950 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 36 transitions, 154 flow. Second operand  has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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)
[2025-04-13 19:36:37,950 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-04-13 19:36:37,950 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34
[2025-04-13 19:36:37,950 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2025-04-13 19:36:38,166 INFO  L116   PetriNetUnfolderBase]: 471/950 cut-off events.
[2025-04-13 19:36:38,167 INFO  L117   PetriNetUnfolderBase]: For 510/512 co-relation queries the response was YES.
[2025-04-13 19:36:38,172 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2246 conditions, 950 events. 471/950 cut-off events. For 510/512 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5424 event pairs, 122 based on Foata normal form. 8/889 useless extension candidates. Maximal degree in co-relation 2231. Up to 291 conditions per place. 
[2025-04-13 19:36:38,174 INFO  L140   encePairwiseOnDemand]: 26/34 looper letters, 29 selfloop transitions, 7 changer transitions 14/68 dead transitions.
[2025-04-13 19:36:38,174 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 334 flow
[2025-04-13 19:36:38,176 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-04-13 19:36:38,176 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2025-04-13 19:36:38,177 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 141 transitions.
[2025-04-13 19:36:38,177 INFO  L509   CegarLoopForPetriNet]: DFA transition density 0.6911764705882353
[2025-04-13 19:36:38,177 INFO  L175             Difference]: Start difference. First operand has 49 places, 36 transitions, 154 flow. Second operand 6 states and 141 transitions.
[2025-04-13 19:36:38,177 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 334 flow
[2025-04-13 19:36:38,183 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 68 transitions, 270 flow, removed 14 selfloop flow, removed 8 redundant places.
[2025-04-13 19:36:38,184 INFO  L231             Difference]: Finished difference. Result has 51 places, 41 transitions, 150 flow
[2025-04-13 19:36:38,184 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=150, PETRI_PLACES=51, PETRI_TRANSITIONS=41}
[2025-04-13 19:36:38,184 INFO  L279   CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places.
[2025-04-13 19:36:38,184 INFO  L485      AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 150 flow
[2025-04-13 19:36:38,185 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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)
[2025-04-13 19:36:38,185 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-04-13 19:36:38,185 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-13 19:36:38,185 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-04-13 19:36:38,185 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2025-04-13 19:36:38,185 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-13 19:36:38,187 INFO  L85        PathProgramCache]: Analyzing trace with hash -395465858, now seen corresponding path program 2 times
[2025-04-13 19:36:38,187 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-13 19:36:38,187 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28060064]
[2025-04-13 19:36:38,187 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-04-13 19:36:38,187 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-13 19:36:38,197 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 1 equivalence classes.
[2025-04-13 19:36:38,207 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 27 of 27 statements.
[2025-04-13 19:36:38,207 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2025-04-13 19:36:38,207 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-13 19:36:38,328 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-13 19:36:38,328 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-13 19:36:38,328 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28060064]
[2025-04-13 19:36:38,328 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28060064] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-13 19:36:38,328 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-13 19:36:38,328 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-04-13 19:36:38,328 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205673714]
[2025-04-13 19:36:38,328 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-13 19:36:38,329 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-04-13 19:36:38,329 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-13 19:36:38,329 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-04-13 19:36:38,329 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-04-13 19:36:38,345 INFO  L464   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34
[2025-04-13 19:36:38,345 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 150 flow. Second operand  has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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)
[2025-04-13 19:36:38,346 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-04-13 19:36:38,346 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34
[2025-04-13 19:36:38,346 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2025-04-13 19:36:38,478 INFO  L116   PetriNetUnfolderBase]: 470/998 cut-off events.
[2025-04-13 19:36:38,478 INFO  L117   PetriNetUnfolderBase]: For 298/298 co-relation queries the response was YES.
[2025-04-13 19:36:38,482 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2320 conditions, 998 events. 470/998 cut-off events. For 298/298 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5844 event pairs, 91 based on Foata normal form. 8/954 useless extension candidates. Maximal degree in co-relation 2304. Up to 324 conditions per place. 
[2025-04-13 19:36:38,485 INFO  L140   encePairwiseOnDemand]: 26/34 looper letters, 29 selfloop transitions, 7 changer transitions 20/74 dead transitions.
[2025-04-13 19:36:38,485 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 74 transitions, 366 flow
[2025-04-13 19:36:38,485 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-04-13 19:36:38,486 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2025-04-13 19:36:38,486 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 158 transitions.
[2025-04-13 19:36:38,487 INFO  L509   CegarLoopForPetriNet]: DFA transition density 0.6638655462184874
[2025-04-13 19:36:38,487 INFO  L175             Difference]: Start difference. First operand has 51 places, 41 transitions, 150 flow. Second operand 7 states and 158 transitions.
[2025-04-13 19:36:38,487 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 74 transitions, 366 flow
[2025-04-13 19:36:38,488 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 74 transitions, 360 flow, removed 3 selfloop flow, removed 2 redundant places.
[2025-04-13 19:36:38,491 INFO  L231             Difference]: Finished difference. Result has 58 places, 42 transitions, 190 flow
[2025-04-13 19:36:38,491 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=190, PETRI_PLACES=58, PETRI_TRANSITIONS=42}
[2025-04-13 19:36:38,492 INFO  L279   CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places.
[2025-04-13 19:36:38,492 INFO  L485      AbstractCegarLoop]: Abstraction has has 58 places, 42 transitions, 190 flow
[2025-04-13 19:36:38,492 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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)
[2025-04-13 19:36:38,492 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-04-13 19:36:38,492 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-13 19:36:38,492 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-04-13 19:36:38,492 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2025-04-13 19:36:38,493 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-13 19:36:38,493 INFO  L85        PathProgramCache]: Analyzing trace with hash -895904514, now seen corresponding path program 3 times
[2025-04-13 19:36:38,493 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-13 19:36:38,493 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161336861]
[2025-04-13 19:36:38,493 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-04-13 19:36:38,493 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-13 19:36:38,502 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 27 statements into 1 equivalence classes.
[2025-04-13 19:36:38,510 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 27 of 27 statements.
[2025-04-13 19:36:38,510 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s)
[2025-04-13 19:36:38,510 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-13 19:36:38,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-13 19:36:38,615 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-13 19:36:38,615 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161336861]
[2025-04-13 19:36:38,615 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161336861] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-13 19:36:38,615 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-13 19:36:38,615 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-04-13 19:36:38,615 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963666094]
[2025-04-13 19:36:38,615 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-13 19:36:38,615 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-04-13 19:36:38,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-13 19:36:38,616 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-04-13 19:36:38,616 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-04-13 19:36:38,620 INFO  L464   CegarLoopForPetriNet]: Number of universal loopers: 18 out of 34
[2025-04-13 19:36:38,621 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 42 transitions, 190 flow. Second operand  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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)
[2025-04-13 19:36:38,621 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-04-13 19:36:38,621 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 34
[2025-04-13 19:36:38,621 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2025-04-13 19:36:38,705 INFO  L116   PetriNetUnfolderBase]: 307/695 cut-off events.
[2025-04-13 19:36:38,706 INFO  L117   PetriNetUnfolderBase]: For 323/340 co-relation queries the response was YES.
[2025-04-13 19:36:38,707 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1632 conditions, 695 events. 307/695 cut-off events. For 323/340 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4052 event pairs, 107 based on Foata normal form. 8/623 useless extension candidates. Maximal degree in co-relation 1611. Up to 160 conditions per place. 
[2025-04-13 19:36:38,708 INFO  L140   encePairwiseOnDemand]: 29/34 looper letters, 15 selfloop transitions, 4 changer transitions 13/56 dead transitions.
[2025-04-13 19:36:38,708 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 56 transitions, 290 flow
[2025-04-13 19:36:38,709 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-04-13 19:36:38,709 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2025-04-13 19:36:38,709 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions.
[2025-04-13 19:36:38,710 INFO  L509   CegarLoopForPetriNet]: DFA transition density 0.7
[2025-04-13 19:36:38,710 INFO  L175             Difference]: Start difference. First operand has 58 places, 42 transitions, 190 flow. Second operand 5 states and 119 transitions.
[2025-04-13 19:36:38,710 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 56 transitions, 290 flow
[2025-04-13 19:36:38,713 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 56 transitions, 279 flow, removed 4 selfloop flow, removed 3 redundant places.
[2025-04-13 19:36:38,713 INFO  L231             Difference]: Finished difference. Result has 58 places, 40 transitions, 180 flow
[2025-04-13 19:36:38,713 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=180, PETRI_PLACES=58, PETRI_TRANSITIONS=40}
[2025-04-13 19:36:38,714 INFO  L279   CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places.
[2025-04-13 19:36:38,714 INFO  L485      AbstractCegarLoop]: Abstraction has has 58 places, 40 transitions, 180 flow
[2025-04-13 19:36:38,714 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 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)
[2025-04-13 19:36:38,714 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-04-13 19:36:38,714 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-13 19:36:38,714 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-04-13 19:36:38,715 INFO  L403      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2025-04-13 19:36:38,715 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-13 19:36:38,715 INFO  L85        PathProgramCache]: Analyzing trace with hash 1061634266, now seen corresponding path program 4 times
[2025-04-13 19:36:38,715 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-13 19:36:38,715 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737756089]
[2025-04-13 19:36:38,715 INFO  L95    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2025-04-13 19:36:38,715 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-13 19:36:38,722 INFO  L108    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 27 statements into 2 equivalence classes.
[2025-04-13 19:36:38,731 INFO  L111    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 27 of 27 statements.
[2025-04-13 19:36:38,732 INFO  L114    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s)
[2025-04-13 19:36:38,732 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-13 19:36:38,815 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-13 19:36:38,816 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-13 19:36:38,816 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737756089]
[2025-04-13 19:36:38,816 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737756089] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-13 19:36:38,816 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-13 19:36:38,816 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-04-13 19:36:38,816 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677134093]
[2025-04-13 19:36:38,816 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-13 19:36:38,816 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-04-13 19:36:38,816 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-13 19:36:38,817 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-04-13 19:36:38,817 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-04-13 19:36:38,825 INFO  L464   CegarLoopForPetriNet]: Number of universal loopers: 16 out of 34
[2025-04-13 19:36:38,825 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 40 transitions, 180 flow. Second operand  has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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)
[2025-04-13 19:36:38,826 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-04-13 19:36:38,826 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 34
[2025-04-13 19:36:38,826 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2025-04-13 19:36:38,911 INFO  L116   PetriNetUnfolderBase]: 249/514 cut-off events.
[2025-04-13 19:36:38,911 INFO  L117   PetriNetUnfolderBase]: For 370/374 co-relation queries the response was YES.
[2025-04-13 19:36:38,912 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1269 conditions, 514 events. 249/514 cut-off events. For 370/374 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2554 event pairs, 113 based on Foata normal form. 10/466 useless extension candidates. Maximal degree in co-relation 1246. Up to 187 conditions per place. 
[2025-04-13 19:36:38,912 INFO  L140   encePairwiseOnDemand]: 29/34 looper letters, 18 selfloop transitions, 4 changer transitions 13/55 dead transitions.
[2025-04-13 19:36:38,912 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 55 transitions, 291 flow
[2025-04-13 19:36:38,913 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-04-13 19:36:38,913 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2025-04-13 19:36:38,913 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 114 transitions.
[2025-04-13 19:36:38,913 INFO  L509   CegarLoopForPetriNet]: DFA transition density 0.6705882352941176
[2025-04-13 19:36:38,913 INFO  L175             Difference]: Start difference. First operand has 58 places, 40 transitions, 180 flow. Second operand 5 states and 114 transitions.
[2025-04-13 19:36:38,913 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 55 transitions, 291 flow
[2025-04-13 19:36:38,914 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 55 transitions, 267 flow, removed 4 selfloop flow, removed 6 redundant places.
[2025-04-13 19:36:38,915 INFO  L231             Difference]: Finished difference. Result has 57 places, 38 transitions, 162 flow
[2025-04-13 19:36:38,915 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=57, PETRI_TRANSITIONS=38}
[2025-04-13 19:36:38,915 INFO  L279   CegarLoopForPetriNet]: 40 programPoint places, 17 predicate places.
[2025-04-13 19:36:38,915 INFO  L485      AbstractCegarLoop]: Abstraction has has 57 places, 38 transitions, 162 flow
[2025-04-13 19:36:38,915 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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)
[2025-04-13 19:36:38,915 INFO  L198   CegarLoopForPetriNet]: Found error trace
[2025-04-13 19:36:38,915 INFO  L206   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-13 19:36:38,915 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-04-13 19:36:38,916 INFO  L403      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2025-04-13 19:36:38,916 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-13 19:36:38,916 INFO  L85        PathProgramCache]: Analyzing trace with hash -734501928, now seen corresponding path program 5 times
[2025-04-13 19:36:38,916 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-13 19:36:38,916 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988398299]
[2025-04-13 19:36:38,916 INFO  L95    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2025-04-13 19:36:38,916 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-13 19:36:38,922 INFO  L108    AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 27 statements into 1 equivalence classes.
[2025-04-13 19:36:38,930 INFO  L111    AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 27 of 27 statements.
[2025-04-13 19:36:38,930 INFO  L114    AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2025-04-13 19:36:38,930 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-13 19:36:39,026 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-13 19:36:39,027 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-13 19:36:39,027 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988398299]
[2025-04-13 19:36:39,027 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988398299] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-13 19:36:39,027 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-13 19:36:39,027 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-04-13 19:36:39,027 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950841356]
[2025-04-13 19:36:39,027 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-13 19:36:39,027 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-04-13 19:36:39,027 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-13 19:36:39,028 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-04-13 19:36:39,028 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-04-13 19:36:39,035 INFO  L464   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34
[2025-04-13 19:36:39,035 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 38 transitions, 162 flow. Second operand  has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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)
[2025-04-13 19:36:39,035 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2025-04-13 19:36:39,035 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34
[2025-04-13 19:36:39,035 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2025-04-13 19:36:39,083 INFO  L116   PetriNetUnfolderBase]: 141/302 cut-off events.
[2025-04-13 19:36:39,083 INFO  L117   PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES.
[2025-04-13 19:36:39,084 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 755 conditions, 302 events. 141/302 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1287 event pairs, 54 based on Foata normal form. 8/285 useless extension candidates. Maximal degree in co-relation 746. Up to 179 conditions per place. 
[2025-04-13 19:36:39,084 INFO  L140   encePairwiseOnDemand]: 30/34 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions.
[2025-04-13 19:36:39,084 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 43 transitions, 223 flow
[2025-04-13 19:36:39,084 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-04-13 19:36:39,084 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2025-04-13 19:36:39,085 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions.
[2025-04-13 19:36:39,085 INFO  L509   CegarLoopForPetriNet]: DFA transition density 0.5823529411764706
[2025-04-13 19:36:39,085 INFO  L175             Difference]: Start difference. First operand has 57 places, 38 transitions, 162 flow. Second operand 5 states and 99 transitions.
[2025-04-13 19:36:39,085 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 43 transitions, 223 flow
[2025-04-13 19:36:39,085 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 43 transitions, 211 flow, removed 1 selfloop flow, removed 4 redundant places.
[2025-04-13 19:36:39,086 INFO  L231             Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow
[2025-04-13 19:36:39,086 INFO  L262   CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0}
[2025-04-13 19:36:39,086 INFO  L279   CegarLoopForPetriNet]: 40 programPoint places, 15 predicate places.
[2025-04-13 19:36:39,086 INFO  L485      AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow
[2025-04-13 19:36:39,086 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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)
[2025-04-13 19:36:39,088 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining)
[2025-04-13 19:36:39,088 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining)
[2025-04-13 19:36:39,088 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining)
[2025-04-13 19:36:39,088 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining)
[2025-04-13 19:36:39,089 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-04-13 19:36:39,089 INFO  L422         BasicCegarLoop]: Path program histogram: [5, 1, 1, 1]
[2025-04-13 19:36:39,091 INFO  L242   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2025-04-13 19:36:39,091 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-04-13 19:36:39,094 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 07:36:39 BasicIcfg
[2025-04-13 19:36:39,094 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-04-13 19:36:39,094 INFO  L158              Benchmark]: Toolchain (without parser) took 3572.36ms. Allocated memory is still 155.2MB. Free memory was 105.4MB in the beginning and 67.0MB in the end (delta: 38.3MB). Peak memory consumption was 38.6MB. Max. memory is 8.0GB.
[2025-04-13 19:36:39,094 INFO  L158              Benchmark]: CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 8.0GB.
[2025-04-13 19:36:39,094 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 436.64ms. Allocated memory is still 155.2MB. Free memory was 105.4MB in the beginning and 82.3MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB.
[2025-04-13 19:36:39,094 INFO  L158              Benchmark]: Boogie Procedure Inliner took 30.91ms. Allocated memory is still 155.2MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 8.0GB.
[2025-04-13 19:36:39,095 INFO  L158              Benchmark]: Boogie Preprocessor took 23.38ms. Allocated memory is still 155.2MB. Free memory was 80.2MB in the beginning and 78.1MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
[2025-04-13 19:36:39,095 INFO  L158              Benchmark]: RCFGBuilder took 358.55ms. Allocated memory is still 155.2MB. Free memory was 78.1MB in the beginning and 55.8MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB.
[2025-04-13 19:36:39,098 INFO  L158              Benchmark]: TraceAbstraction took 2718.77ms. Allocated memory is still 155.2MB. Free memory was 55.1MB in the beginning and 67.0MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 8.0GB.
[2025-04-13 19:36:39,099 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 436.64ms. Allocated memory is still 155.2MB. Free memory was 105.4MB in the beginning and 82.3MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 30.91ms. Allocated memory is still 155.2MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 8.0GB.
 * Boogie Preprocessor took 23.38ms. Allocated memory is still 155.2MB. Free memory was 80.2MB in the beginning and 78.1MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
 * RCFGBuilder took 358.55ms. Allocated memory is still 155.2MB. Free memory was 78.1MB in the beginning and 55.8MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB.
 * TraceAbstraction took 2718.77ms. Allocated memory is still 155.2MB. Free memory was 55.1MB in the beginning and 67.0MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 18]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 7 procedures, 59 locations, 55 edges, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 243 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 237 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 543 IncrementalHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 14 mSDtfsCounter, 543 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=5, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-04-13 19:36:39,110 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...