/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked TOGETHER -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-time-symm.wvr_bound2.c


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


This is Ultimate 0.2.3-dev-19404b3-m
[2023-08-03 19:49:40,577 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-08-03 19:49:40,643 INFO  L114        SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf
[2023-08-03 19:49:40,648 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-08-03 19:49:40,648 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-08-03 19:49:40,649 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode:
[2023-08-03 19:49:40,649 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2023-08-03 19:49:40,678 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-08-03 19:49:40,679 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-08-03 19:49:40,682 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-08-03 19:49:40,682 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-08-03 19:49:40,683 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-08-03 19:49:40,684 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-08-03 19:49:40,685 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-08-03 19:49:40,685 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-08-03 19:49:40,685 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-08-03 19:49:40,685 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-08-03 19:49:40,685 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-08-03 19:49:40,686 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-08-03 19:49:40,686 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-08-03 19:49:40,686 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-08-03 19:49:40,686 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-08-03 19:49:40,687 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-08-03 19:49:40,687 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-08-03 19:49:40,687 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-08-03 19:49:40,687 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-08-03 19:49:40,687 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-08-03 19:49:40,688 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-08-03 19:49:40,688 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-08-03 19:49:40,688 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-08-03 19:49:40,690 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-03 19:49:40,690 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-08-03 19:49:40,690 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-08-03 19:49:40,691 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-08-03 19:49:40,691 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-08-03 19:49:40,691 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-08-03 19:49:40,691 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-08-03 19:49:40,691 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-08-03 19:49:40,691 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-08-03 19:49:40,692 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-08-03 19:49:40,692 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-08-03 19:49:40,692 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER
[2023-08-03 19:49:40,877 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-08-03 19:49:40,900 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-08-03 19:49:40,902 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-08-03 19:49:40,903 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-08-03 19:49:40,904 INFO  L274        PluginConnector]: CDTParser initialized
[2023-08-03 19:49:40,905 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-time-symm.wvr_bound2.c
[2023-08-03 19:49:42,057 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-08-03 19:49:42,236 INFO  L384              CDTParser]: Found 1 translation units.
[2023-08-03 19:49:42,236 INFO  L180              CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-time-symm.wvr_bound2.c
[2023-08-03 19:49:42,242 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/774a1b99d/26ec98c3abb64c898bac50fccf123e1b/FLAG27cd79fc2
[2023-08-03 19:49:42,256 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/774a1b99d/26ec98c3abb64c898bac50fccf123e1b
[2023-08-03 19:49:42,258 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-08-03 19:49:42,259 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-08-03 19:49:42,260 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-08-03 19:49:42,260 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-08-03 19:49:42,263 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-08-03 19:49:42,263 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,264 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@165265a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42, skipping insertion in model container
[2023-08-03 19:49:42,264 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,282 INFO  L176         MainTranslator]: Built tables and reachable declarations
[2023-08-03 19:49:42,433 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-time-symm.wvr_bound2.c[2656,2669]
[2023-08-03 19:49:42,438 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-08-03 19:49:42,446 INFO  L201         MainTranslator]: Completed pre-run
[2023-08-03 19:49:42,467 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-time-symm.wvr_bound2.c[2656,2669]
[2023-08-03 19:49:42,469 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-08-03 19:49:42,477 WARN  L667               CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler.
[2023-08-03 19:49:42,478 WARN  L667               CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler.
[2023-08-03 19:49:42,483 INFO  L206         MainTranslator]: Completed translation
[2023-08-03 19:49:42,483 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42 WrapperNode
[2023-08-03 19:49:42,483 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-08-03 19:49:42,484 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-08-03 19:49:42,484 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-08-03 19:49:42,484 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-08-03 19:49:42,490 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,497 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,521 INFO  L138                Inliner]: procedures = 22, calls = 29, calls flagged for inlining = 9, calls inlined = 15, statements flattened = 186
[2023-08-03 19:49:42,521 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-08-03 19:49:42,522 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-08-03 19:49:42,522 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-08-03 19:49:42,522 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-08-03 19:49:42,529 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,529 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,531 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,531 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,537 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,541 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,543 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,544 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,551 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-08-03 19:49:42,552 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-08-03 19:49:42,552 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-08-03 19:49:42,552 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-08-03 19:49:42,552 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42" (1/1) ...
[2023-08-03 19:49:42,557 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-03 19:49:42,567 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 19:49:42,582 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-08-03 19:49:42,593 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-08-03 19:49:42,620 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-08-03 19:49:42,620 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2023-08-03 19:49:42,620 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2023-08-03 19:49:42,620 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2023-08-03 19:49:42,621 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2023-08-03 19:49:42,621 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-08-03 19:49:42,621 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-08-03 19:49:42,622 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-08-03 19:49:42,622 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2023-08-03 19:49:42,623 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2023-08-03 19:49:42,623 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-08-03 19:49:42,623 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-08-03 19:49:42,623 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-08-03 19:49:42,623 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-08-03 19:49:42,625 WARN  L210             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-08-03 19:49:42,743 INFO  L236             CfgBuilder]: Building ICFG
[2023-08-03 19:49:42,745 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-08-03 19:49:43,043 INFO  L277             CfgBuilder]: Performing block encoding
[2023-08-03 19:49:43,305 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-08-03 19:49:43,306 INFO  L302             CfgBuilder]: Removed 4 assume(true) statements.
[2023-08-03 19:49:43,307 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 07:49:43 BoogieIcfgContainer
[2023-08-03 19:49:43,308 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-08-03 19:49:43,310 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-08-03 19:49:43,310 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-08-03 19:49:43,313 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-08-03 19:49:43,313 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 07:49:42" (1/3) ...
[2023-08-03 19:49:43,314 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607b3cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 07:49:43, skipping insertion in model container
[2023-08-03 19:49:43,315 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:49:42" (2/3) ...
[2023-08-03 19:49:43,315 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607b3cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 07:49:43, skipping insertion in model container
[2023-08-03 19:49:43,316 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 07:49:43" (3/3) ...
[2023-08-03 19:49:43,317 INFO  L112   eAbstractionObserver]: Analyzing ICFG weaver_chl-time-symm.wvr_bound2.c
[2023-08-03 19:49:43,324 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-08-03 19:49:43,332 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-08-03 19:49:43,333 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-08-03 19:49:43,333 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-08-03 19:49:43,394 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2023-08-03 19:49:43,434 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 109 places, 113 transitions, 248 flow
[2023-08-03 19:49:43,501 INFO  L124   PetriNetUnfolderBase]: 26/246 cut-off events.
[2023-08-03 19:49:43,502 INFO  L125   PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2023-08-03 19:49:43,506 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 266 conditions, 246 events. 26/246 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 716 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 145. Up to 8 conditions per place. 
[2023-08-03 19:49:43,506 INFO  L82        GeneralOperation]: Start removeDead. Operand has 109 places, 113 transitions, 248 flow
[2023-08-03 19:49:43,510 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 101 places, 105 transitions, 232 flow
[2023-08-03 19:49:43,513 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-03 19:49:43,521 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 105 transitions, 232 flow
[2023-08-03 19:49:43,525 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 105 transitions, 232 flow
[2023-08-03 19:49:43,525 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 101 places, 105 transitions, 232 flow
[2023-08-03 19:49:43,582 INFO  L124   PetriNetUnfolderBase]: 26/214 cut-off events.
[2023-08-03 19:49:43,582 INFO  L125   PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2023-08-03 19:49:43,582 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 234 conditions, 214 events. 26/214 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 549 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 129. Up to 8 conditions per place. 
[2023-08-03 19:49:43,584 INFO  L119        LiptonReduction]: Number of co-enabled transitions 582
[2023-08-03 19:49:46,992 INFO  L134        LiptonReduction]: Checked pairs total: 1358
[2023-08-03 19:49:46,992 INFO  L136        LiptonReduction]: Total number of compositions: 89
[2023-08-03 19:49:47,003 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-03 19:49:47,009 INFO  L357      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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5bdb628b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-03 19:49:47,009 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2023-08-03 19:49:47,013 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-08-03 19:49:47,013 INFO  L124   PetriNetUnfolderBase]: 0/12 cut-off events.
[2023-08-03 19:49:47,013 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-08-03 19:49:47,013 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:47,014 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-08-03 19:49:47,014 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:47,018 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:47,018 INFO  L85        PathProgramCache]: Analyzing trace with hash 597889534, now seen corresponding path program 1 times
[2023-08-03 19:49:47,025 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:47,026 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228945152]
[2023-08-03 19:49:47,026 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:47,026 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:47,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:47,181 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-03 19:49:47,181 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:49:47,181 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228945152]
[2023-08-03 19:49:47,182 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228945152] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-03 19:49:47,182 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-03 19:49:47,182 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-08-03 19:49:47,183 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581147796]
[2023-08-03 19:49:47,184 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-03 19:49:47,190 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-03 19:49:47,194 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:49:47,209 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-03 19:49:47,210 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-03 19:49:47,232 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 95 out of 202
[2023-08-03 19:49:47,236 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 25 transitions, 72 flow. Second operand  has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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)
[2023-08-03 19:49:47,237 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:49:47,237 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 202
[2023-08-03 19:49:47,237 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:49:47,319 INFO  L124   PetriNetUnfolderBase]: 57/152 cut-off events.
[2023-08-03 19:49:47,319 INFO  L125   PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES.
[2023-08-03 19:49:47,320 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 316 conditions, 152 events. 57/152 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 531 event pairs, 21 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 220. Up to 133 conditions per place. 
[2023-08-03 19:49:47,322 INFO  L140   encePairwiseOnDemand]: 199/202 looper letters, 21 selfloop transitions, 2 changer transitions 0/27 dead transitions.
[2023-08-03 19:49:47,322 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 122 flow
[2023-08-03 19:49:47,327 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-08-03 19:49:47,329 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-03 19:49:47,340 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions.
[2023-08-03 19:49:47,344 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5099009900990099
[2023-08-03 19:49:47,344 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 309 transitions.
[2023-08-03 19:49:47,345 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions.
[2023-08-03 19:49:47,347 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:49:47,349 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions.
[2023-08-03 19:49:47,355 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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)
[2023-08-03 19:49:47,358 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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)
[2023-08-03 19:49:47,359 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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)
[2023-08-03 19:49:47,360 INFO  L175             Difference]: Start difference. First operand has 26 places, 25 transitions, 72 flow. Second operand 3 states and 309 transitions.
[2023-08-03 19:49:47,361 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 122 flow
[2023-08-03 19:49:47,363 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 27 transitions, 122 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-08-03 19:49:47,365 INFO  L231             Difference]: Finished difference. Result has 29 places, 25 transitions, 80 flow
[2023-08-03 19:49:47,366 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=29, PETRI_TRANSITIONS=25}
[2023-08-03 19:49:47,371 INFO  L281   CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places.
[2023-08-03 19:49:47,371 INFO  L495      AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 80 flow
[2023-08-03 19:49:47,372 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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)
[2023-08-03 19:49:47,372 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:47,372 INFO  L208   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-08-03 19:49:47,372 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-08-03 19:49:47,373 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:47,380 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:47,380 INFO  L85        PathProgramCache]: Analyzing trace with hash 1372612534, now seen corresponding path program 1 times
[2023-08-03 19:49:47,380 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:47,381 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461947538]
[2023-08-03 19:49:47,381 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:47,381 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:47,424 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-03 19:49:47,424 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-08-03 19:49:47,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-03 19:49:47,469 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-08-03 19:49:47,470 INFO  L360         BasicCegarLoop]: Counterexample is feasible
[2023-08-03 19:49:47,471 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining)
[2023-08-03 19:49:47,472 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining)
[2023-08-03 19:49:47,473 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining)
[2023-08-03 19:49:47,473 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-08-03 19:49:47,473 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1]
[2023-08-03 19:49:47,477 WARN  L233   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-08-03 19:49:47,477 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-08-03 19:49:47,520 INFO  L144    ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions.
[2023-08-03 19:49:47,526 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 121 places, 125 transitions, 298 flow
[2023-08-03 19:49:47,600 INFO  L124   PetriNetUnfolderBase]: 117/786 cut-off events.
[2023-08-03 19:49:47,600 INFO  L125   PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES.
[2023-08-03 19:49:47,603 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 883 conditions, 786 events. 117/786 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3820 event pairs, 2 based on Foata normal form. 0/666 useless extension candidates. Maximal degree in co-relation 460. Up to 32 conditions per place. 
[2023-08-03 19:49:47,603 INFO  L82        GeneralOperation]: Start removeDead. Operand has 121 places, 125 transitions, 298 flow
[2023-08-03 19:49:47,606 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 113 places, 117 transitions, 282 flow
[2023-08-03 19:49:47,607 INFO  L124   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-03 19:49:47,607 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 117 transitions, 282 flow
[2023-08-03 19:49:47,607 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 117 transitions, 282 flow
[2023-08-03 19:49:47,608 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 113 places, 117 transitions, 282 flow
[2023-08-03 19:49:47,669 INFO  L124   PetriNetUnfolderBase]: 117/658 cut-off events.
[2023-08-03 19:49:47,669 INFO  L125   PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES.
[2023-08-03 19:49:47,672 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 755 conditions, 658 events. 117/658 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2819 event pairs, 2 based on Foata normal form. 0/554 useless extension candidates. Maximal degree in co-relation 396. Up to 32 conditions per place. 
[2023-08-03 19:49:47,676 INFO  L119        LiptonReduction]: Number of co-enabled transitions 1356
[2023-08-03 19:49:52,000 INFO  L134        LiptonReduction]: Checked pairs total: 3832
[2023-08-03 19:49:52,000 INFO  L136        LiptonReduction]: Total number of compositions: 91
[2023-08-03 19:49:52,002 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-03 19:49:52,003 INFO  L357      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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5bdb628b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-03 19:49:52,003 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2023-08-03 19:49:52,006 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-08-03 19:49:52,006 INFO  L124   PetriNetUnfolderBase]: 0/12 cut-off events.
[2023-08-03 19:49:52,006 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-08-03 19:49:52,006 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:52,006 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-08-03 19:49:52,006 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:52,007 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:52,007 INFO  L85        PathProgramCache]: Analyzing trace with hash 813562403, now seen corresponding path program 1 times
[2023-08-03 19:49:52,007 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:52,007 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838169189]
[2023-08-03 19:49:52,007 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:52,007 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:52,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:52,050 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-03 19:49:52,050 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:49:52,050 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838169189]
[2023-08-03 19:49:52,050 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838169189] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-03 19:49:52,050 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-03 19:49:52,051 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-08-03 19:49:52,051 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346892129]
[2023-08-03 19:49:52,051 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-03 19:49:52,051 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-03 19:49:52,051 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:49:52,052 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-03 19:49:52,052 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-03 19:49:52,061 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 99 out of 216
[2023-08-03 19:49:52,062 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 35 transitions, 118 flow. Second operand  has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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)
[2023-08-03 19:49:52,062 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:49:52,062 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 216
[2023-08-03 19:49:52,062 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:49:52,381 INFO  L124   PetriNetUnfolderBase]: 1053/1879 cut-off events.
[2023-08-03 19:49:52,381 INFO  L125   PetriNetUnfolderBase]: For 370/370 co-relation queries the response was YES.
[2023-08-03 19:49:52,384 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3913 conditions, 1879 events. 1053/1879 cut-off events. For 370/370 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 9464 event pairs, 641 based on Foata normal form. 0/1667 useless extension candidates. Maximal degree in co-relation 1484. Up to 1725 conditions per place. 
[2023-08-03 19:49:52,390 INFO  L140   encePairwiseOnDemand]: 213/216 looper letters, 30 selfloop transitions, 2 changer transitions 0/38 dead transitions.
[2023-08-03 19:49:52,391 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 188 flow
[2023-08-03 19:49:52,393 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-08-03 19:49:52,394 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-03 19:49:52,395 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions.
[2023-08-03 19:49:52,395 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5092592592592593
[2023-08-03 19:49:52,396 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 330 transitions.
[2023-08-03 19:49:52,396 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions.
[2023-08-03 19:49:52,396 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:49:52,396 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions.
[2023-08-03 19:49:52,397 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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)
[2023-08-03 19:49:52,400 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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)
[2023-08-03 19:49:52,401 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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)
[2023-08-03 19:49:52,401 INFO  L175             Difference]: Start difference. First operand has 36 places, 35 transitions, 118 flow. Second operand 3 states and 330 transitions.
[2023-08-03 19:49:52,401 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 188 flow
[2023-08-03 19:49:52,405 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 38 transitions, 188 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-08-03 19:49:52,406 INFO  L231             Difference]: Finished difference. Result has 39 places, 36 transitions, 130 flow
[2023-08-03 19:49:52,406 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=39, PETRI_TRANSITIONS=36}
[2023-08-03 19:49:52,407 INFO  L281   CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places.
[2023-08-03 19:49:52,407 INFO  L495      AbstractCegarLoop]: Abstraction has has 39 places, 36 transitions, 130 flow
[2023-08-03 19:49:52,408 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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)
[2023-08-03 19:49:52,408 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:52,408 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 19:49:52,408 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-08-03 19:49:52,408 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:52,409 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:52,409 INFO  L85        PathProgramCache]: Analyzing trace with hash -1800214270, now seen corresponding path program 1 times
[2023-08-03 19:49:52,409 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:52,409 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749940285]
[2023-08-03 19:49:52,410 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:52,410 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:52,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:52,478 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-03 19:49:52,479 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:49:52,479 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749940285]
[2023-08-03 19:49:52,479 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749940285] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-03 19:49:52,479 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186871707]
[2023-08-03 19:49:52,479 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:52,480 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:52,480 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 19:49:52,483 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-03 19:49:52,521 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-08-03 19:49:52,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:52,558 INFO  L262         TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-08-03 19:49:52,559 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-08-03 19:49:52,571 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-08-03 19:49:52,571 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-08-03 19:49:52,571 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186871707] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-03 19:49:52,572 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-08-03 19:49:52,572 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2023-08-03 19:49:52,572 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688565665]
[2023-08-03 19:49:52,572 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-03 19:49:52,572 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-03 19:49:52,572 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:49:52,573 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-03 19:49:52,573 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-08-03 19:49:52,583 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 99 out of 216
[2023-08-03 19:49:52,583 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 130 flow. Second operand  has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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)
[2023-08-03 19:49:52,583 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:49:52,583 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 216
[2023-08-03 19:49:52,584 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:49:52,906 INFO  L124   PetriNetUnfolderBase]: 1047/1887 cut-off events.
[2023-08-03 19:49:52,906 INFO  L125   PetriNetUnfolderBase]: For 319/319 co-relation queries the response was YES.
[2023-08-03 19:49:52,909 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3932 conditions, 1887 events. 1047/1887 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 9573 event pairs, 644 based on Foata normal form. 0/1689 useless extension candidates. Maximal degree in co-relation 3904. Up to 1679 conditions per place. 
[2023-08-03 19:49:52,916 INFO  L140   encePairwiseOnDemand]: 213/216 looper letters, 33 selfloop transitions, 2 changer transitions 0/41 dead transitions.
[2023-08-03 19:49:52,916 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 210 flow
[2023-08-03 19:49:52,916 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-08-03 19:49:52,917 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-03 19:49:52,917 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions.
[2023-08-03 19:49:52,918 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5123456790123457
[2023-08-03 19:49:52,918 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 332 transitions.
[2023-08-03 19:49:52,918 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions.
[2023-08-03 19:49:52,918 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:49:52,918 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions.
[2023-08-03 19:49:52,919 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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)
[2023-08-03 19:49:52,920 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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)
[2023-08-03 19:49:52,921 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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)
[2023-08-03 19:49:52,921 INFO  L175             Difference]: Start difference. First operand has 39 places, 36 transitions, 130 flow. Second operand 3 states and 332 transitions.
[2023-08-03 19:49:52,921 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 210 flow
[2023-08-03 19:49:52,923 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 41 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-03 19:49:52,924 INFO  L231             Difference]: Finished difference. Result has 41 places, 37 transitions, 140 flow
[2023-08-03 19:49:52,924 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=41, PETRI_TRANSITIONS=37}
[2023-08-03 19:49:52,924 INFO  L281   CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places.
[2023-08-03 19:49:52,925 INFO  L495      AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 140 flow
[2023-08-03 19:49:52,925 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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)
[2023-08-03 19:49:52,925 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:52,925 INFO  L208   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-08-03 19:49:52,935 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-08-03 19:49:53,130 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:53,131 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:53,131 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:53,131 INFO  L85        PathProgramCache]: Analyzing trace with hash 1323356682, now seen corresponding path program 1 times
[2023-08-03 19:49:53,132 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:53,132 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279566097]
[2023-08-03 19:49:53,132 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:53,132 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:53,146 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:53,204 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-03 19:49:53,204 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:49:53,204 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279566097]
[2023-08-03 19:49:53,204 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279566097] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-03 19:49:53,204 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902104482]
[2023-08-03 19:49:53,205 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:53,205 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:53,205 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 19:49:53,206 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-03 19:49:53,209 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-08-03 19:49:53,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:53,280 INFO  L262         TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-08-03 19:49:53,282 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-08-03 19:49:53,319 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-03 19:49:53,320 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-08-03 19:49:53,320 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902104482] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-03 19:49:53,320 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-08-03 19:49:53,321 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5
[2023-08-03 19:49:53,321 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860900281]
[2023-08-03 19:49:53,321 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-03 19:49:53,323 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-03 19:49:53,323 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:49:53,324 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-03 19:49:53,324 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-08-03 19:49:53,336 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 98 out of 216
[2023-08-03 19:49:53,337 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 140 flow. Second operand  has 5 states, 5 states have (on average 99.6) internal successors, (498), 5 states have internal predecessors, (498), 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)
[2023-08-03 19:49:53,337 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:49:53,337 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 216
[2023-08-03 19:49:53,337 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:49:53,659 INFO  L124   PetriNetUnfolderBase]: 1043/1877 cut-off events.
[2023-08-03 19:49:53,659 INFO  L125   PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES.
[2023-08-03 19:49:53,662 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3999 conditions, 1877 events. 1043/1877 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 9480 event pairs, 427 based on Foata normal form. 4/1719 useless extension candidates. Maximal degree in co-relation 1517. Up to 1698 conditions per place. 
[2023-08-03 19:49:53,669 INFO  L140   encePairwiseOnDemand]: 212/216 looper letters, 32 selfloop transitions, 4 changer transitions 0/41 dead transitions.
[2023-08-03 19:49:53,669 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 41 transitions, 221 flow
[2023-08-03 19:49:53,670 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-08-03 19:49:53,670 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-03 19:49:53,671 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 526 transitions.
[2023-08-03 19:49:53,671 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.48703703703703705
[2023-08-03 19:49:53,671 INFO  L72            ComplementDD]: Start complementDD. Operand 5 states and 526 transitions.
[2023-08-03 19:49:53,671 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 5 states and 526 transitions.
[2023-08-03 19:49:53,672 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:49:53,672 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 526 transitions.
[2023-08-03 19:49:53,673 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 6 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 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)
[2023-08-03 19:49:53,675 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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)
[2023-08-03 19:49:53,675 INFO  L81            ComplementDD]: Finished complementDD. Result  has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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)
[2023-08-03 19:49:53,676 INFO  L175             Difference]: Start difference. First operand has 41 places, 37 transitions, 140 flow. Second operand 5 states and 526 transitions.
[2023-08-03 19:49:53,676 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 41 transitions, 221 flow
[2023-08-03 19:49:53,678 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 41 transitions, 212 flow, removed 0 selfloop flow, removed 3 redundant places.
[2023-08-03 19:49:53,680 INFO  L231             Difference]: Finished difference. Result has 43 places, 37 transitions, 149 flow
[2023-08-03 19:49:53,680 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=149, PETRI_PLACES=43, PETRI_TRANSITIONS=37}
[2023-08-03 19:49:53,681 INFO  L281   CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places.
[2023-08-03 19:49:53,682 INFO  L495      AbstractCegarLoop]: Abstraction has has 43 places, 37 transitions, 149 flow
[2023-08-03 19:49:53,682 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 99.6) internal successors, (498), 5 states have internal predecessors, (498), 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)
[2023-08-03 19:49:53,682 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:53,682 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 19:49:53,690 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-08-03 19:49:53,891 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:53,891 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:53,891 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:53,892 INFO  L85        PathProgramCache]: Analyzing trace with hash 2038620855, now seen corresponding path program 1 times
[2023-08-03 19:49:53,892 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:53,892 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081872484]
[2023-08-03 19:49:53,892 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:53,892 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:53,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:53,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-08-03 19:49:53,970 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:49:53,970 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081872484]
[2023-08-03 19:49:53,970 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081872484] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-03 19:49:53,970 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665912222]
[2023-08-03 19:49:53,970 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:53,970 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:53,970 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 19:49:53,972 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-03 19:49:53,997 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-08-03 19:49:54,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:54,040 INFO  L262         TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-08-03 19:49:54,041 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-08-03 19:49:54,048 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-08-03 19:49:54,048 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-08-03 19:49:54,048 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665912222] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-03 19:49:54,049 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-08-03 19:49:54,049 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2023-08-03 19:49:54,049 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124307354]
[2023-08-03 19:49:54,049 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-03 19:49:54,049 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-03 19:49:54,049 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:49:54,050 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-03 19:49:54,050 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-08-03 19:49:54,064 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 99 out of 216
[2023-08-03 19:49:54,064 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 37 transitions, 149 flow. Second operand  has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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)
[2023-08-03 19:49:54,064 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:49:54,064 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 216
[2023-08-03 19:49:54,065 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:49:54,326 INFO  L124   PetriNetUnfolderBase]: 953/1763 cut-off events.
[2023-08-03 19:49:54,326 INFO  L125   PetriNetUnfolderBase]: For 313/313 co-relation queries the response was YES.
[2023-08-03 19:49:54,329 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3734 conditions, 1763 events. 953/1763 cut-off events. For 313/313 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 8979 event pairs, 616 based on Foata normal form. 0/1633 useless extension candidates. Maximal degree in co-relation 1674. Up to 1287 conditions per place. 
[2023-08-03 19:49:54,335 INFO  L140   encePairwiseOnDemand]: 213/216 looper letters, 40 selfloop transitions, 2 changer transitions 0/47 dead transitions.
[2023-08-03 19:49:54,335 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 47 transitions, 263 flow
[2023-08-03 19:49:54,335 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-08-03 19:49:54,336 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-03 19:49:54,336 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions.
[2023-08-03 19:49:54,337 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5200617283950617
[2023-08-03 19:49:54,337 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 337 transitions.
[2023-08-03 19:49:54,337 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions.
[2023-08-03 19:49:54,337 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:49:54,337 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions.
[2023-08-03 19:49:54,338 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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)
[2023-08-03 19:49:54,339 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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)
[2023-08-03 19:49:54,340 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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)
[2023-08-03 19:49:54,340 INFO  L175             Difference]: Start difference. First operand has 43 places, 37 transitions, 149 flow. Second operand 3 states and 337 transitions.
[2023-08-03 19:49:54,340 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 47 transitions, 263 flow
[2023-08-03 19:49:54,341 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 47 transitions, 256 flow, removed 2 selfloop flow, removed 2 redundant places.
[2023-08-03 19:49:54,342 INFO  L231             Difference]: Finished difference. Result has 44 places, 38 transitions, 154 flow
[2023-08-03 19:49:54,342 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=44, PETRI_TRANSITIONS=38}
[2023-08-03 19:49:54,343 INFO  L281   CegarLoopForPetriNet]: 36 programPoint places, 8 predicate places.
[2023-08-03 19:49:54,343 INFO  L495      AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 154 flow
[2023-08-03 19:49:54,343 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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)
[2023-08-03 19:49:54,344 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:54,344 INFO  L208   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 19:49:54,351 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-08-03 19:49:54,551 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:54,552 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:54,552 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:54,552 INFO  L85        PathProgramCache]: Analyzing trace with hash -2061242338, now seen corresponding path program 1 times
[2023-08-03 19:49:54,552 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:54,552 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345390606]
[2023-08-03 19:49:54,553 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:54,553 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:54,571 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:54,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-08-03 19:49:54,612 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:49:54,613 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345390606]
[2023-08-03 19:49:54,613 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345390606] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-03 19:49:54,613 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293898513]
[2023-08-03 19:49:54,613 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:54,613 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:54,613 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 19:49:54,623 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-03 19:49:54,624 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-08-03 19:49:54,691 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:54,692 INFO  L262         TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-08-03 19:49:54,693 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-08-03 19:49:54,708 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-08-03 19:49:54,708 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-08-03 19:49:54,729 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-08-03 19:49:54,729 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [293898513] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-03 19:49:54,729 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-03 19:49:54,729 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4
[2023-08-03 19:49:54,729 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946408040]
[2023-08-03 19:49:54,729 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-03 19:49:54,730 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-03 19:49:54,730 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:49:54,730 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-03 19:49:54,730 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2023-08-03 19:49:54,746 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 98 out of 216
[2023-08-03 19:49:54,747 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 154 flow. Second operand  has 5 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 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)
[2023-08-03 19:49:54,747 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:49:54,747 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 216
[2023-08-03 19:49:54,747 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:49:55,032 INFO  L124   PetriNetUnfolderBase]: 851/1563 cut-off events.
[2023-08-03 19:49:55,033 INFO  L125   PetriNetUnfolderBase]: For 399/399 co-relation queries the response was YES.
[2023-08-03 19:49:55,035 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3490 conditions, 1563 events. 851/1563 cut-off events. For 399/399 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 7595 event pairs, 370 based on Foata normal form. 2/1500 useless extension candidates. Maximal degree in co-relation 1367. Up to 1415 conditions per place. 
[2023-08-03 19:49:55,044 INFO  L140   encePairwiseOnDemand]: 213/216 looper letters, 33 selfloop transitions, 3 changer transitions 0/41 dead transitions.
[2023-08-03 19:49:55,044 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 228 flow
[2023-08-03 19:49:55,044 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-08-03 19:49:55,044 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-03 19:49:55,045 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions.
[2023-08-03 19:49:55,046 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.49421296296296297
[2023-08-03 19:49:55,046 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 427 transitions.
[2023-08-03 19:49:55,046 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 427 transitions.
[2023-08-03 19:49:55,046 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:49:55,046 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 427 transitions.
[2023-08-03 19:49:55,048 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 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)
[2023-08-03 19:49:55,050 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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)
[2023-08-03 19:49:55,051 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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)
[2023-08-03 19:49:55,051 INFO  L175             Difference]: Start difference. First operand has 44 places, 38 transitions, 154 flow. Second operand 4 states and 427 transitions.
[2023-08-03 19:49:55,051 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 228 flow
[2023-08-03 19:49:55,053 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 41 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-03 19:49:55,054 INFO  L231             Difference]: Finished difference. Result has 46 places, 37 transitions, 150 flow
[2023-08-03 19:49:55,054 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=46, PETRI_TRANSITIONS=37}
[2023-08-03 19:49:55,055 INFO  L281   CegarLoopForPetriNet]: 36 programPoint places, 10 predicate places.
[2023-08-03 19:49:55,055 INFO  L495      AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 150 flow
[2023-08-03 19:49:55,055 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 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)
[2023-08-03 19:49:55,055 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:55,055 INFO  L208   CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 19:49:55,061 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-08-03 19:49:55,261 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:55,261 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:55,261 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:55,261 INFO  L85        PathProgramCache]: Analyzing trace with hash -171239042, now seen corresponding path program 1 times
[2023-08-03 19:49:55,261 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:55,262 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552470103]
[2023-08-03 19:49:55,262 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:55,262 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:55,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:55,346 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-08-03 19:49:55,347 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:49:55,347 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552470103]
[2023-08-03 19:49:55,347 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552470103] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-03 19:49:55,347 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263360168]
[2023-08-03 19:49:55,347 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:55,347 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:55,347 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 19:49:55,349 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-03 19:49:55,353 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-08-03 19:49:55,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:55,421 INFO  L262         TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-08-03 19:49:55,422 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-08-03 19:49:55,442 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2023-08-03 19:49:55,443 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-08-03 19:49:55,443 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [263360168] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-03 19:49:55,443 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-08-03 19:49:55,443 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6
[2023-08-03 19:49:55,443 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368426314]
[2023-08-03 19:49:55,443 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-03 19:49:55,444 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-03 19:49:55,444 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:49:55,444 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-03 19:49:55,444 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-08-03 19:49:55,457 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 98 out of 216
[2023-08-03 19:49:55,458 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 150 flow. Second operand  has 5 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 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)
[2023-08-03 19:49:55,458 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:49:55,458 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 216
[2023-08-03 19:49:55,458 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:49:55,702 INFO  L124   PetriNetUnfolderBase]: 819/1507 cut-off events.
[2023-08-03 19:49:55,703 INFO  L125   PetriNetUnfolderBase]: For 307/307 co-relation queries the response was YES.
[2023-08-03 19:49:55,705 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3333 conditions, 1507 events. 819/1507 cut-off events. For 307/307 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 7233 event pairs, 44 based on Foata normal form. 16/1458 useless extension candidates. Maximal degree in co-relation 1982. Up to 1246 conditions per place. 
[2023-08-03 19:49:55,710 INFO  L140   encePairwiseOnDemand]: 212/216 looper letters, 39 selfloop transitions, 4 changer transitions 0/47 dead transitions.
[2023-08-03 19:49:55,710 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 47 transitions, 256 flow
[2023-08-03 19:49:55,711 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-08-03 19:49:55,711 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2023-08-03 19:49:55,712 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions.
[2023-08-03 19:49:55,712 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.4925925925925926
[2023-08-03 19:49:55,712 INFO  L72            ComplementDD]: Start complementDD. Operand 5 states and 532 transitions.
[2023-08-03 19:49:55,712 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 5 states and 532 transitions.
[2023-08-03 19:49:55,713 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:49:55,713 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 532 transitions.
[2023-08-03 19:49:55,714 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 6 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 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)
[2023-08-03 19:49:55,715 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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)
[2023-08-03 19:49:55,716 INFO  L81            ComplementDD]: Finished complementDD. Result  has 6 states, 6 states have (on average 216.0) internal successors, (1296), 6 states have internal predecessors, (1296), 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)
[2023-08-03 19:49:55,716 INFO  L175             Difference]: Start difference. First operand has 46 places, 37 transitions, 150 flow. Second operand 5 states and 532 transitions.
[2023-08-03 19:49:55,716 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 47 transitions, 256 flow
[2023-08-03 19:49:55,718 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 47 transitions, 244 flow, removed 0 selfloop flow, removed 5 redundant places.
[2023-08-03 19:49:55,719 INFO  L231             Difference]: Finished difference. Result has 46 places, 37 transitions, 155 flow
[2023-08-03 19:49:55,719 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=155, PETRI_PLACES=46, PETRI_TRANSITIONS=37}
[2023-08-03 19:49:55,720 INFO  L281   CegarLoopForPetriNet]: 36 programPoint places, 10 predicate places.
[2023-08-03 19:49:55,720 INFO  L495      AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 155 flow
[2023-08-03 19:49:55,721 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 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)
[2023-08-03 19:49:55,721 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:55,721 INFO  L208   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 19:49:55,728 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-08-03 19:49:55,926 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:55,926 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:55,927 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:55,927 INFO  L85        PathProgramCache]: Analyzing trace with hash -1282211098, now seen corresponding path program 1 times
[2023-08-03 19:49:55,927 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:55,927 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421499609]
[2023-08-03 19:49:55,927 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:55,927 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:55,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:55,979 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2023-08-03 19:49:55,979 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:49:55,979 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421499609]
[2023-08-03 19:49:55,979 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421499609] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-03 19:49:55,980 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23836318]
[2023-08-03 19:49:55,980 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:55,980 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:55,980 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 19:49:55,981 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-03 19:49:55,984 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-08-03 19:49:56,054 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:56,055 INFO  L262         TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-08-03 19:49:56,056 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-08-03 19:49:56,063 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-08-03 19:49:56,063 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-08-03 19:49:56,063 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [23836318] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-03 19:49:56,063 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-08-03 19:49:56,063 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5
[2023-08-03 19:49:56,063 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970148547]
[2023-08-03 19:49:56,064 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-03 19:49:56,064 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-03 19:49:56,064 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:49:56,064 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-03 19:49:56,064 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-08-03 19:49:56,073 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 99 out of 216
[2023-08-03 19:49:56,074 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 155 flow. Second operand  has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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)
[2023-08-03 19:49:56,074 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:49:56,074 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 216
[2023-08-03 19:49:56,074 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:49:56,339 INFO  L124   PetriNetUnfolderBase]: 826/1566 cut-off events.
[2023-08-03 19:49:56,340 INFO  L125   PetriNetUnfolderBase]: For 481/481 co-relation queries the response was YES.
[2023-08-03 19:49:56,342 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3484 conditions, 1566 events. 826/1566 cut-off events. For 481/481 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 7780 event pairs, 556 based on Foata normal form. 0/1533 useless extension candidates. Maximal degree in co-relation 2119. Up to 1047 conditions per place. 
[2023-08-03 19:49:56,346 INFO  L140   encePairwiseOnDemand]: 213/216 looper letters, 41 selfloop transitions, 2 changer transitions 0/47 dead transitions.
[2023-08-03 19:49:56,346 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 47 transitions, 269 flow
[2023-08-03 19:49:56,346 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-08-03 19:49:56,347 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-03 19:49:56,347 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions.
[2023-08-03 19:49:56,348 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5200617283950617
[2023-08-03 19:49:56,348 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 337 transitions.
[2023-08-03 19:49:56,348 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions.
[2023-08-03 19:49:56,348 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:49:56,348 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions.
[2023-08-03 19:49:56,349 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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)
[2023-08-03 19:49:56,350 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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)
[2023-08-03 19:49:56,350 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 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)
[2023-08-03 19:49:56,350 INFO  L175             Difference]: Start difference. First operand has 46 places, 37 transitions, 155 flow. Second operand 3 states and 337 transitions.
[2023-08-03 19:49:56,350 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 47 transitions, 269 flow
[2023-08-03 19:49:56,351 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 47 transitions, 262 flow, removed 2 selfloop flow, removed 2 redundant places.
[2023-08-03 19:49:56,352 INFO  L231             Difference]: Finished difference. Result has 47 places, 38 transitions, 160 flow
[2023-08-03 19:49:56,352 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=47, PETRI_TRANSITIONS=38}
[2023-08-03 19:49:56,353 INFO  L281   CegarLoopForPetriNet]: 36 programPoint places, 11 predicate places.
[2023-08-03 19:49:56,353 INFO  L495      AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 160 flow
[2023-08-03 19:49:56,353 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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)
[2023-08-03 19:49:56,353 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:56,353 INFO  L208   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 19:49:56,359 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-08-03 19:49:56,558 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:56,559 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:56,559 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:56,559 INFO  L85        PathProgramCache]: Analyzing trace with hash 2088776549, now seen corresponding path program 1 times
[2023-08-03 19:49:56,559 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:56,559 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629236535]
[2023-08-03 19:49:56,559 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:56,560 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:56,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:56,624 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-08-03 19:49:56,624 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:49:56,624 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629236535]
[2023-08-03 19:49:56,625 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629236535] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-03 19:49:56,625 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451832722]
[2023-08-03 19:49:56,625 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:56,625 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:56,625 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 19:49:56,626 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-03 19:49:56,629 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-08-03 19:49:56,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:56,713 INFO  L262         TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-08-03 19:49:56,715 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-08-03 19:49:56,728 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-08-03 19:49:56,728 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-08-03 19:49:56,747 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2023-08-03 19:49:56,747 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [451832722] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-03 19:49:56,747 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-03 19:49:56,748 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5
[2023-08-03 19:49:56,749 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780020242]
[2023-08-03 19:49:56,749 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-03 19:49:56,750 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-03 19:49:56,750 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:49:56,751 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-03 19:49:56,751 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2023-08-03 19:49:56,762 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 98 out of 216
[2023-08-03 19:49:56,763 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 160 flow. Second operand  has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 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)
[2023-08-03 19:49:56,763 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:49:56,763 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 216
[2023-08-03 19:49:56,763 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:49:56,995 INFO  L124   PetriNetUnfolderBase]: 778/1478 cut-off events.
[2023-08-03 19:49:56,996 INFO  L125   PetriNetUnfolderBase]: For 408/408 co-relation queries the response was YES.
[2023-08-03 19:49:56,998 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3422 conditions, 1478 events. 778/1478 cut-off events. For 408/408 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 7004 event pairs, 356 based on Foata normal form. 8/1486 useless extension candidates. Maximal degree in co-relation 2127. Up to 1245 conditions per place. 
[2023-08-03 19:49:57,003 INFO  L140   encePairwiseOnDemand]: 213/216 looper letters, 38 selfloop transitions, 3 changer transitions 0/45 dead transitions.
[2023-08-03 19:49:57,004 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 45 transitions, 252 flow
[2023-08-03 19:49:57,004 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-08-03 19:49:57,004 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-03 19:49:57,005 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 431 transitions.
[2023-08-03 19:49:57,005 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.4988425925925926
[2023-08-03 19:49:57,005 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 431 transitions.
[2023-08-03 19:49:57,006 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 431 transitions.
[2023-08-03 19:49:57,006 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:49:57,006 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 431 transitions.
[2023-08-03 19:49:57,007 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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)
[2023-08-03 19:49:57,008 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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)
[2023-08-03 19:49:57,008 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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)
[2023-08-03 19:49:57,008 INFO  L175             Difference]: Start difference. First operand has 47 places, 38 transitions, 160 flow. Second operand 4 states and 431 transitions.
[2023-08-03 19:49:57,008 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 45 transitions, 252 flow
[2023-08-03 19:49:57,012 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 45 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-08-03 19:49:57,013 INFO  L231             Difference]: Finished difference. Result has 49 places, 37 transitions, 156 flow
[2023-08-03 19:49:57,013 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=49, PETRI_TRANSITIONS=37}
[2023-08-03 19:49:57,013 INFO  L281   CegarLoopForPetriNet]: 36 programPoint places, 13 predicate places.
[2023-08-03 19:49:57,014 INFO  L495      AbstractCegarLoop]: Abstraction has has 49 places, 37 transitions, 156 flow
[2023-08-03 19:49:57,014 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 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)
[2023-08-03 19:49:57,014 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:57,014 INFO  L208   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 19:49:57,021 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-08-03 19:49:57,219 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:57,220 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:57,220 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:57,220 INFO  L85        PathProgramCache]: Analyzing trace with hash 1070610745, now seen corresponding path program 1 times
[2023-08-03 19:49:57,220 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:57,220 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931090542]
[2023-08-03 19:49:57,220 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:57,221 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:57,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:57,285 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2023-08-03 19:49:57,286 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:49:57,286 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931090542]
[2023-08-03 19:49:57,286 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931090542] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-03 19:49:57,286 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119168126]
[2023-08-03 19:49:57,286 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:57,286 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:57,286 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 19:49:57,288 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-03 19:49:57,309 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-08-03 19:49:57,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:57,377 INFO  L262         TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-08-03 19:49:57,378 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-08-03 19:49:57,389 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2023-08-03 19:49:57,389 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-08-03 19:49:57,401 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2023-08-03 19:49:57,401 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119168126] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-03 19:49:57,401 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-03 19:49:57,401 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5
[2023-08-03 19:49:57,401 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375516801]
[2023-08-03 19:49:57,402 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-03 19:49:57,402 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-03 19:49:57,402 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:49:57,402 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-03 19:49:57,402 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2023-08-03 19:49:57,414 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 98 out of 216
[2023-08-03 19:49:57,414 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 156 flow. Second operand  has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 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)
[2023-08-03 19:49:57,415 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:49:57,415 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 216
[2023-08-03 19:49:57,415 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:49:57,605 INFO  L124   PetriNetUnfolderBase]: 534/1034 cut-off events.
[2023-08-03 19:49:57,605 INFO  L125   PetriNetUnfolderBase]: For 399/399 co-relation queries the response was YES.
[2023-08-03 19:49:57,607 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2405 conditions, 1034 events. 534/1034 cut-off events. For 399/399 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4323 event pairs, 215 based on Foata normal form. 32/1066 useless extension candidates. Maximal degree in co-relation 1885. Up to 444 conditions per place. 
[2023-08-03 19:49:57,610 INFO  L140   encePairwiseOnDemand]: 212/216 looper letters, 43 selfloop transitions, 4 changer transitions 0/51 dead transitions.
[2023-08-03 19:49:57,610 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 51 transitions, 286 flow
[2023-08-03 19:49:57,611 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-08-03 19:49:57,611 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-03 19:49:57,611 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 437 transitions.
[2023-08-03 19:49:57,612 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5057870370370371
[2023-08-03 19:49:57,612 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 437 transitions.
[2023-08-03 19:49:57,612 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 437 transitions.
[2023-08-03 19:49:57,612 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:49:57,612 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 437 transitions.
[2023-08-03 19:49:57,613 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 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)
[2023-08-03 19:49:57,615 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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)
[2023-08-03 19:49:57,615 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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)
[2023-08-03 19:49:57,615 INFO  L175             Difference]: Start difference. First operand has 49 places, 37 transitions, 156 flow. Second operand 4 states and 437 transitions.
[2023-08-03 19:49:57,615 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 51 transitions, 286 flow
[2023-08-03 19:49:57,617 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 51 transitions, 280 flow, removed 0 selfloop flow, removed 3 redundant places.
[2023-08-03 19:49:57,618 INFO  L231             Difference]: Finished difference. Result has 51 places, 38 transitions, 170 flow
[2023-08-03 19:49:57,618 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=51, PETRI_TRANSITIONS=38}
[2023-08-03 19:49:57,618 INFO  L281   CegarLoopForPetriNet]: 36 programPoint places, 15 predicate places.
[2023-08-03 19:49:57,618 INFO  L495      AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 170 flow
[2023-08-03 19:49:57,619 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 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)
[2023-08-03 19:49:57,619 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:57,619 INFO  L208   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 19:49:57,627 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2023-08-03 19:49:57,824 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2023-08-03 19:49:57,825 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:57,825 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:57,825 INFO  L85        PathProgramCache]: Analyzing trace with hash -170758066, now seen corresponding path program 1 times
[2023-08-03 19:49:57,825 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:57,825 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632323441]
[2023-08-03 19:49:57,825 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:57,826 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:57,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:57,896 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2023-08-03 19:49:57,896 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:49:57,897 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632323441]
[2023-08-03 19:49:57,897 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632323441] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-03 19:49:57,897 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999011230]
[2023-08-03 19:49:57,897 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:57,897 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:57,897 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 19:49:57,898 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-03 19:49:57,901 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-08-03 19:49:57,988 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:57,989 INFO  L262         TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-08-03 19:49:57,990 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-08-03 19:49:58,003 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2023-08-03 19:49:58,003 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-08-03 19:49:58,018 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2023-08-03 19:49:58,019 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999011230] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-03 19:49:58,019 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-03 19:49:58,019 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4
[2023-08-03 19:49:58,019 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916231395]
[2023-08-03 19:49:58,019 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-03 19:49:58,019 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-08-03 19:49:58,020 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:49:58,020 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-08-03 19:49:58,020 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2023-08-03 19:49:58,031 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 98 out of 216
[2023-08-03 19:49:58,031 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 170 flow. Second operand  has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 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)
[2023-08-03 19:49:58,031 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:49:58,031 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 216
[2023-08-03 19:49:58,031 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:49:58,271 INFO  L124   PetriNetUnfolderBase]: 530/1023 cut-off events.
[2023-08-03 19:49:58,271 INFO  L125   PetriNetUnfolderBase]: For 688/688 co-relation queries the response was YES.
[2023-08-03 19:49:58,273 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2625 conditions, 1023 events. 530/1023 cut-off events. For 688/688 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4237 event pairs, 439 based on Foata normal form. 9/1032 useless extension candidates. Maximal degree in co-relation 2101. Up to 749 conditions per place. 
[2023-08-03 19:49:58,277 INFO  L140   encePairwiseOnDemand]: 212/216 looper letters, 43 selfloop transitions, 3 changer transitions 2/52 dead transitions.
[2023-08-03 19:49:58,277 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 52 transitions, 302 flow
[2023-08-03 19:49:58,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-08-03 19:49:58,277 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-03 19:49:58,278 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 437 transitions.
[2023-08-03 19:49:58,279 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5057870370370371
[2023-08-03 19:49:58,279 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 437 transitions.
[2023-08-03 19:49:58,279 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 437 transitions.
[2023-08-03 19:49:58,279 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:49:58,279 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 437 transitions.
[2023-08-03 19:49:58,280 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 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)
[2023-08-03 19:49:58,282 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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)
[2023-08-03 19:49:58,282 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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)
[2023-08-03 19:49:58,282 INFO  L175             Difference]: Start difference. First operand has 51 places, 38 transitions, 170 flow. Second operand 4 states and 437 transitions.
[2023-08-03 19:49:58,282 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 52 transitions, 302 flow
[2023-08-03 19:49:58,285 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 298 flow, removed 1 selfloop flow, removed 1 redundant places.
[2023-08-03 19:49:58,286 INFO  L231             Difference]: Finished difference. Result has 55 places, 37 transitions, 174 flow
[2023-08-03 19:49:58,286 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=55, PETRI_TRANSITIONS=37}
[2023-08-03 19:49:58,286 INFO  L281   CegarLoopForPetriNet]: 36 programPoint places, 19 predicate places.
[2023-08-03 19:49:58,286 INFO  L495      AbstractCegarLoop]: Abstraction has has 55 places, 37 transitions, 174 flow
[2023-08-03 19:49:58,286 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 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)
[2023-08-03 19:49:58,287 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:49:58,287 INFO  L208   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 19:49:58,295 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2023-08-03 19:49:58,491 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:58,492 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:49:58,492 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:49:58,492 INFO  L85        PathProgramCache]: Analyzing trace with hash -1418787849, now seen corresponding path program 1 times
[2023-08-03 19:49:58,492 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:49:58,493 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824744590]
[2023-08-03 19:49:58,493 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:58,493 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:49:58,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:59,366 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-08-03 19:49:59,366 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:49:59,367 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824744590]
[2023-08-03 19:49:59,367 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824744590] provided 0 perfect and 1 imperfect interpolant sequences
[2023-08-03 19:49:59,367 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021620053]
[2023-08-03 19:49:59,367 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:49:59,367 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-08-03 19:49:59,367 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-03 19:49:59,368 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-08-03 19:49:59,380 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2023-08-03 19:49:59,486 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:49:59,487 INFO  L262         TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-08-03 19:49:59,490 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-08-03 19:49:59,887 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-08-03 19:49:59,887 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-08-03 19:50:01,262 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2023-08-03 19:50:01,262 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021620053] provided 0 perfect and 2 imperfect interpolant sequences
[2023-08-03 19:50:01,262 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-08-03 19:50:01,262 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7
[2023-08-03 19:50:01,263 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796126204]
[2023-08-03 19:50:01,263 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-08-03 19:50:01,263 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-08-03 19:50:01,265 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:50:01,265 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-08-03 19:50:01,265 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2023-08-03 19:50:01,294 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 91 out of 216
[2023-08-03 19:50:01,295 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 37 transitions, 174 flow. Second operand  has 8 states, 8 states have (on average 98.875) internal successors, (791), 8 states have internal predecessors, (791), 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)
[2023-08-03 19:50:01,295 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:50:01,295 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 216
[2023-08-03 19:50:01,295 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:50:01,619 INFO  L124   PetriNetUnfolderBase]: 725/1390 cut-off events.
[2023-08-03 19:50:01,619 INFO  L125   PetriNetUnfolderBase]: For 1029/1029 co-relation queries the response was YES.
[2023-08-03 19:50:01,624 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 3663 conditions, 1390 events. 725/1390 cut-off events. For 1029/1029 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6830 event pairs, 109 based on Foata normal form. 1/1383 useless extension candidates. Maximal degree in co-relation 3583. Up to 670 conditions per place. 
[2023-08-03 19:50:01,627 INFO  L140   encePairwiseOnDemand]: 211/216 looper letters, 42 selfloop transitions, 2 changer transitions 35/83 dead transitions.
[2023-08-03 19:50:01,627 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 83 transitions, 561 flow
[2023-08-03 19:50:01,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-08-03 19:50:01,628 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-03 19:50:01,629 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 434 transitions.
[2023-08-03 19:50:01,629 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5023148148148148
[2023-08-03 19:50:01,629 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 434 transitions.
[2023-08-03 19:50:01,629 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 434 transitions.
[2023-08-03 19:50:01,630 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:50:01,630 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 434 transitions.
[2023-08-03 19:50:01,631 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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)
[2023-08-03 19:50:01,632 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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)
[2023-08-03 19:50:01,633 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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)
[2023-08-03 19:50:01,633 INFO  L175             Difference]: Start difference. First operand has 55 places, 37 transitions, 174 flow. Second operand 4 states and 434 transitions.
[2023-08-03 19:50:01,633 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 83 transitions, 561 flow
[2023-08-03 19:50:01,638 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 83 transitions, 541 flow, removed 2 selfloop flow, removed 3 redundant places.
[2023-08-03 19:50:01,639 INFO  L231             Difference]: Finished difference. Result has 58 places, 39 transitions, 188 flow
[2023-08-03 19:50:01,639 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=188, PETRI_PLACES=58, PETRI_TRANSITIONS=39}
[2023-08-03 19:50:01,640 INFO  L281   CegarLoopForPetriNet]: 36 programPoint places, 22 predicate places.
[2023-08-03 19:50:01,640 INFO  L495      AbstractCegarLoop]: Abstraction has has 58 places, 39 transitions, 188 flow
[2023-08-03 19:50:01,640 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 98.875) internal successors, (791), 8 states have internal predecessors, (791), 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)
[2023-08-03 19:50:01,640 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2023-08-03 19:50:01,640 INFO  L208   CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 19:50:01,651 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2023-08-03 19:50:01,846 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2023-08-03 19:50:01,846 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] ===
[2023-08-03 19:50:01,846 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-08-03 19:50:01,846 INFO  L85        PathProgramCache]: Analyzing trace with hash -51498683, now seen corresponding path program 2 times
[2023-08-03 19:50:01,846 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-03 19:50:01,847 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495187251]
[2023-08-03 19:50:01,847 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-03 19:50:01,847 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-03 19:50:01,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-03 19:50:02,663 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2023-08-03 19:50:02,663 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-03 19:50:02,663 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495187251]
[2023-08-03 19:50:02,663 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495187251] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-03 19:50:02,663 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-03 19:50:02,664 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-03 19:50:02,664 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948797281]
[2023-08-03 19:50:02,664 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-03 19:50:02,664 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-08-03 19:50:02,664 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-03 19:50:02,664 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-08-03 19:50:02,665 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-08-03 19:50:02,683 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 91 out of 216
[2023-08-03 19:50:02,684 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 39 transitions, 188 flow. Second operand  has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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)
[2023-08-03 19:50:02,684 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-03 19:50:02,684 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 216
[2023-08-03 19:50:02,684 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-03 19:50:02,854 INFO  L124   PetriNetUnfolderBase]: 286/677 cut-off events.
[2023-08-03 19:50:02,854 INFO  L125   PetriNetUnfolderBase]: For 855/855 co-relation queries the response was YES.
[2023-08-03 19:50:02,855 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2172 conditions, 677 events. 286/677 cut-off events. For 855/855 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3188 event pairs, 79 based on Foata normal form. 1/673 useless extension candidates. Maximal degree in co-relation 2155. Up to 443 conditions per place. 
[2023-08-03 19:50:02,856 INFO  L140   encePairwiseOnDemand]: 211/216 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions.
[2023-08-03 19:50:02,857 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 68 transitions, 468 flow
[2023-08-03 19:50:02,857 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-08-03 19:50:02,857 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2023-08-03 19:50:02,858 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 419 transitions.
[2023-08-03 19:50:02,858 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.4849537037037037
[2023-08-03 19:50:02,858 INFO  L72            ComplementDD]: Start complementDD. Operand 4 states and 419 transitions.
[2023-08-03 19:50:02,858 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 4 states and 419 transitions.
[2023-08-03 19:50:02,859 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-03 19:50:02,859 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 419 transitions.
[2023-08-03 19:50:02,860 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 5 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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)
[2023-08-03 19:50:02,861 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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)
[2023-08-03 19:50:02,861 INFO  L81            ComplementDD]: Finished complementDD. Result  has 5 states, 5 states have (on average 216.0) internal successors, (1080), 5 states have internal predecessors, (1080), 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)
[2023-08-03 19:50:02,861 INFO  L175             Difference]: Start difference. First operand has 58 places, 39 transitions, 188 flow. Second operand 4 states and 419 transitions.
[2023-08-03 19:50:02,861 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 68 transitions, 468 flow
[2023-08-03 19:50:02,863 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 68 transitions, 458 flow, removed 0 selfloop flow, removed 3 redundant places.
[2023-08-03 19:50:02,864 INFO  L231             Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow
[2023-08-03 19:50:02,864 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0}
[2023-08-03 19:50:02,865 INFO  L281   CegarLoopForPetriNet]: 36 programPoint places, 20 predicate places.
[2023-08-03 19:50:02,865 INFO  L495      AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow
[2023-08-03 19:50:02,865 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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)
[2023-08-03 19:50:02,865 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2023-08-03 19:50:02,865 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining)
[2023-08-03 19:50:02,865 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining)
[2023-08-03 19:50:02,865 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-08-03 19:50:02,866 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-03 19:50:02,867 INFO  L228   ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances
[2023-08-03 19:50:02,867 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2023-08-03 19:50:02,870 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 07:50:02 BasicIcfg
[2023-08-03 19:50:02,870 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-08-03 19:50:02,870 INFO  L158              Benchmark]: Toolchain (without parser) took 20611.55ms. Allocated memory was 354.4MB in the beginning and 885.0MB in the end (delta: 530.6MB). Free memory was 294.4MB in the beginning and 571.5MB in the end (delta: -277.1MB). Peak memory consumption was 255.4MB. Max. memory is 16.0GB.
[2023-08-03 19:50:02,870 INFO  L158              Benchmark]: CDTParser took 0.11ms. Allocated memory is still 354.4MB. Free memory is still 304.3MB. There was no memory consumed. Max. memory is 16.0GB.
[2023-08-03 19:50:02,871 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 223.36ms. Allocated memory is still 354.4MB. Free memory was 294.1MB in the beginning and 282.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB.
[2023-08-03 19:50:02,871 INFO  L158              Benchmark]: Boogie Procedure Inliner took 37.22ms. Allocated memory is still 354.4MB. Free memory was 282.8MB in the beginning and 280.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
[2023-08-03 19:50:02,871 INFO  L158              Benchmark]: Boogie Preprocessor took 29.39ms. Allocated memory is still 354.4MB. Free memory was 280.6MB in the beginning and 279.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
[2023-08-03 19:50:02,871 INFO  L158              Benchmark]: RCFGBuilder took 756.08ms. Allocated memory was 354.4MB in the beginning and 612.4MB in the end (delta: 257.9MB). Free memory was 278.8MB in the beginning and 535.8MB in the end (delta: -257.1MB). Peak memory consumption was 15.3MB. Max. memory is 16.0GB.
[2023-08-03 19:50:02,872 INFO  L158              Benchmark]: TraceAbstraction took 19559.71ms. Allocated memory was 612.4MB in the beginning and 885.0MB in the end (delta: 272.6MB). Free memory was 534.8MB in the beginning and 571.5MB in the end (delta: -36.7MB). Peak memory consumption was 235.9MB. Max. memory is 16.0GB.
[2023-08-03 19:50:02,873 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.11ms. Allocated memory is still 354.4MB. Free memory is still 304.3MB. There was no memory consumed. Max. memory is 16.0GB.
 * CACSL2BoogieTranslator took 223.36ms. Allocated memory is still 354.4MB. Free memory was 294.1MB in the beginning and 282.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB.
 * Boogie Procedure Inliner took 37.22ms. Allocated memory is still 354.4MB. Free memory was 282.8MB in the beginning and 280.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
 * Boogie Preprocessor took 29.39ms. Allocated memory is still 354.4MB. Free memory was 280.6MB in the beginning and 279.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB.
 * RCFGBuilder took 756.08ms. Allocated memory was 354.4MB in the beginning and 612.4MB in the end (delta: 257.9MB). Free memory was 278.8MB in the beginning and 535.8MB in the end (delta: -257.1MB). Peak memory consumption was 15.3MB. Max. memory is 16.0GB.
 * TraceAbstraction took 19559.71ms. Allocated memory was 612.4MB in the beginning and 885.0MB in the end (delta: 272.6MB). Free memory was 534.8MB in the beginning and 571.5MB in the end (delta: -36.7MB). Peak memory consumption was 235.9MB. Max. memory is 16.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 3.5s, 101 PlacesBefore, 26 PlacesAfterwards, 105 TransitionsBefore, 25 TransitionsAfterwards, 582 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 5 ChoiceCompositions, 89 TotalNumberOfCompositions, 1358 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 923, independent: 892, independent conditional: 0, independent unconditional: 892, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 331, independent: 321, independent conditional: 0, independent unconditional: 321, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 923, independent: 571, independent conditional: 0, independent unconditional: 571, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 331, unknown conditional: 0, unknown unconditional: 331] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 4.4s, 113 PlacesBefore, 36 PlacesAfterwards, 117 TransitionsBefore, 35 TransitionsAfterwards, 1356 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 5 ChoiceCompositions, 91 TotalNumberOfCompositions, 3832 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2926, independent: 2874, independent conditional: 0, independent unconditional: 2874, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 814, independent: 800, independent conditional: 0, independent unconditional: 800, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2926, independent: 2074, independent conditional: 0, independent unconditional: 2074, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 814, unknown conditional: 0, unknown unconditional: 814] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0
  - PositiveResult [Line: 80]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 5 procedures, 113 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 7 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=1, InterpolantAutomatonStates: 3, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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
  - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances
    CFG has 7 procedures, 121 locations, 3 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: 15.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 445 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 334 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1130 IncrementalHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 25 mSDtfsCounter, 1130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 407 GetRequests, 359 SyntacticMatches, 8 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=11, InterpolantAutomatonStates: 46, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 498 NumberOfCodeBlocks, 498 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 622 ConstructedInterpolants, 0 QuantifiedInterpolants, 3971 SizeOfPredicates, 24 NumberOfNonLiveVariables, 1311 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 27 InterpolantComputations, 7 PerfectInterpolantSequences, 273/304 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
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2023-08-03 19:50:02,888 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...