./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version fca748b1
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e7050d36e2131966739d0040816e49ede1f1e8b3b668f65d41876950193b1d8
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m
[2024-11-20 09:33:07,013 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-20 09:33:07,073 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-20 09:33:07,078 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-20 09:33:07,079 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-20 09:33:07,114 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-20 09:33:07,115 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-20 09:33:07,115 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-20 09:33:07,116 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-20 09:33:07,116 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-20 09:33:07,117 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-20 09:33:07,118 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-20 09:33:07,118 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-20 09:33:07,121 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-20 09:33:07,121 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-20 09:33:07,121 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-20 09:33:07,121 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-20 09:33:07,122 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-20 09:33:07,122 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-20 09:33:07,122 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-20 09:33:07,123 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-20 09:33:07,127 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-20 09:33:07,127 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-20 09:33:07,127 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-20 09:33:07,127 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-20 09:33:07,128 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-20 09:33:07,128 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-20 09:33:07,128 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-20 09:33:07,128 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-20 09:33:07,128 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-20 09:33:07,129 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-20 09:33:07,129 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-20 09:33:07,129 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-20 09:33:07,129 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-20 09:33:07,130 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-20 09:33:07,130 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-20 09:33:07,133 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-20 09:33:07,133 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-20 09:33:07,133 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-20 09:33:07,133 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-20 09:33:07,133 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-20 09:33:07,134 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-20 09:33:07,134 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.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e7050d36e2131966739d0040816e49ede1f1e8b3b668f65d41876950193b1d8
[2024-11-20 09:33:07,368 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-20 09:33:07,397 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-20 09:33:07,400 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-20 09:33:07,401 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-20 09:33:07,401 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-20 09:33:07,403 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i
[2024-11-20 09:33:08,893 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-20 09:33:09,178 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-20 09:33:09,179 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i
[2024-11-20 09:33:09,195 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7d2da777/3f1fbf5ca44b413fad8ec78f094cfbc8/FLAG62515dcf3
[2024-11-20 09:33:09,211 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7d2da777/3f1fbf5ca44b413fad8ec78f094cfbc8
[2024-11-20 09:33:09,213 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-20 09:33:09,215 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-20 09:33:09,216 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-20 09:33:09,216 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-20 09:33:09,220 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-20 09:33:09,221 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:33:09" (1/1) ...
[2024-11-20 09:33:09,222 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d94f13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:09, skipping insertion in model container
[2024-11-20 09:33:09,222 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:33:09" (1/1) ...
[2024-11-20 09:33:09,270 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-20 09:33:09,699 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i[47038,47051]
[2024-11-20 09:33:09,741 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-20 09:33:10,006 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-20 09:33:10,050 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i[47038,47051]
[2024-11-20 09:33:10,060 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-20 09:33:10,171 INFO  L204         MainTranslator]: Completed translation
[2024-11-20 09:33:10,172 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10 WrapperNode
[2024-11-20 09:33:10,172 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-20 09:33:10,173 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-20 09:33:10,173 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-20 09:33:10,173 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-20 09:33:10,179 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (1/1) ...
[2024-11-20 09:33:10,232 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (1/1) ...
[2024-11-20 09:33:10,333 INFO  L138                Inliner]: procedures = 280, calls = 1605, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 1794
[2024-11-20 09:33:10,335 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-20 09:33:10,335 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-20 09:33:10,336 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-20 09:33:10,336 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-20 09:33:10,348 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (1/1) ...
[2024-11-20 09:33:10,349 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (1/1) ...
[2024-11-20 09:33:10,431 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (1/1) ...
[2024-11-20 09:33:10,497 INFO  L175           MemorySlicer]: Split 1569 memory accesses to 8 slices as follows [2, 5, 259, 2, 5, 1280, 14, 2]. 82 percent of accesses are in the largest equivalence class. The 1548 initializations are split as follows [2, 5, 256, 0, 5, 1280, 0, 0]. The 11 writes are split as follows [0, 0, 1, 1, 0, 0, 8, 1].
[2024-11-20 09:33:10,498 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (1/1) ...
[2024-11-20 09:33:10,498 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (1/1) ...
[2024-11-20 09:33:10,550 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (1/1) ...
[2024-11-20 09:33:10,560 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (1/1) ...
[2024-11-20 09:33:10,575 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (1/1) ...
[2024-11-20 09:33:10,589 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (1/1) ...
[2024-11-20 09:33:10,606 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-20 09:33:10,608 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-20 09:33:10,608 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-20 09:33:10,609 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-20 09:33:10,610 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (1/1) ...
[2024-11-20 09:33:10,622 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-20 09:33:10,633 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-20 09:33:10,662 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-20 09:33:10,665 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-20 09:33:10,715 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-20 09:33:10,716 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-20 09:33:10,716 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-20 09:33:10,716 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-20 09:33:10,716 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-11-20 09:33:10,716 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-11-20 09:33:10,716 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#5
[2024-11-20 09:33:10,716 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#6
[2024-11-20 09:33:10,716 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#7
[2024-11-20 09:33:10,716 INFO  L130     BoogieDeclarations]: Found specification of procedure t1_fun
[2024-11-20 09:33:10,717 INFO  L138     BoogieDeclarations]: Found implementation of procedure t1_fun
[2024-11-20 09:33:10,717 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-20 09:33:10,717 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-20 09:33:10,717 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-20 09:33:10,717 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-20 09:33:10,717 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3
[2024-11-20 09:33:10,717 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4
[2024-11-20 09:33:10,717 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5
[2024-11-20 09:33:10,717 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6
[2024-11-20 09:33:10,718 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7
[2024-11-20 09:33:10,718 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-20 09:33:10,718 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-20 09:33:10,718 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-20 09:33:10,718 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-20 09:33:10,718 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#3
[2024-11-20 09:33:10,718 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#4
[2024-11-20 09:33:10,718 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#5
[2024-11-20 09:33:10,718 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#6
[2024-11-20 09:33:10,718 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#7
[2024-11-20 09:33:10,719 INFO  L130     BoogieDeclarations]: Found specification of procedure t2_fun
[2024-11-20 09:33:10,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure t2_fun
[2024-11-20 09:33:10,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-20 09:33:10,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-20 09:33:10,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-20 09:33:10,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-20 09:33:10,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#4
[2024-11-20 09:33:10,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#5
[2024-11-20 09:33:10,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#6
[2024-11-20 09:33:10,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#7
[2024-11-20 09:33:10,720 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-20 09:33:10,720 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-20 09:33:10,720 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-20 09:33:10,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-20 09:33:10,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-20 09:33:10,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-11-20 09:33:10,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2024-11-20 09:33:10,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#4
[2024-11-20 09:33:10,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#5
[2024-11-20 09:33:10,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#6
[2024-11-20 09:33:10,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#7
[2024-11-20 09:33:10,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-20 09:33:10,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-20 09:33:10,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-20 09:33:10,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-20 09:33:10,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-11-20 09:33:10,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2024-11-20 09:33:10,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2024-11-20 09:33:10,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2024-11-20 09:33:10,722 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-20 09:33:10,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-20 09:33:10,724 WARN  L207             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-20 09:33:10,925 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-20 09:33:10,926 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-20 09:33:12,791 INFO  L283             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-20 09:33:12,791 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-20 09:33:54,506 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-20 09:33:54,507 INFO  L316             CfgBuilder]: Removed 16 assume(true) statements.
[2024-11-20 09:33:54,507 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:54 BoogieIcfgContainer
[2024-11-20 09:33:54,507 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-20 09:33:54,509 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-20 09:33:54,510 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-20 09:33:54,513 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-20 09:33:54,513 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:33:09" (1/3) ...
[2024-11-20 09:33:54,514 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28473fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:33:54, skipping insertion in model container
[2024-11-20 09:33:54,514 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:33:10" (2/3) ...
[2024-11-20 09:33:54,514 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28473fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:33:54, skipping insertion in model container
[2024-11-20 09:33:54,515 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:54" (3/3) ...
[2024-11-20 09:33:54,516 INFO  L112   eAbstractionObserver]: Analyzing ICFG 28-race_reach_86-lists_racing.i
[2024-11-20 09:33:54,535 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-20 09:33:54,536 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-20 09:33:54,536 INFO  L489   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-20 09:33:54,651 INFO  L143    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-11-20 09:33:54,701 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 63 places, 77 transitions, 174 flow
[2024-11-20 09:33:54,810 INFO  L124   PetriNetUnfolderBase]: 37/157 cut-off events.
[2024-11-20 09:33:54,810 INFO  L125   PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2024-11-20 09:33:54,817 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 174 conditions, 157 events. 37/157 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 560 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 80. Up to 8 conditions per place. 
[2024-11-20 09:33:54,817 INFO  L82        GeneralOperation]: Start removeDead. Operand has 63 places, 77 transitions, 174 flow
[2024-11-20 09:33:54,823 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 63 places, 75 transitions, 164 flow
[2024-11-20 09:33:54,834 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-20 09:33:54,843 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52ef9b79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-20 09:33:54,844 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2024-11-20 09:33:54,897 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-20 09:33:54,898 INFO  L124   PetriNetUnfolderBase]: 1/20 cut-off events.
[2024-11-20 09:33:54,898 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-20 09:33:54,898 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-20 09:33:54,899 INFO  L204   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1]
[2024-11-20 09:33:54,900 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-20 09:33:54,905 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 09:33:54,906 INFO  L85        PathProgramCache]: Analyzing trace with hash -183646525, now seen corresponding path program 1 times
[2024-11-20 09:33:54,916 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 09:33:54,917 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417399403]
[2024-11-20 09:33:54,917 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 09:33:54,917 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 09:33:55,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 09:33:55,782 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-20 09:33:55,783 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 09:33:55,783 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417399403]
[2024-11-20 09:33:55,783 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417399403] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-20 09:33:55,784 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-20 09:33:55,784 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-20 09:33:55,785 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281897385]
[2024-11-20 09:33:55,786 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-20 09:33:55,794 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-20 09:33:55,799 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 09:33:55,825 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-20 09:33:55,826 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-20 09:33:55,828 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 77
[2024-11-20 09:33:55,831 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 75 transitions, 164 flow. Second operand  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-20 09:33:55,831 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-20 09:33:55,831 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 77
[2024-11-20 09:33:55,832 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-20 09:33:56,854 INFO  L124   PetriNetUnfolderBase]: 2345/4509 cut-off events.
[2024-11-20 09:33:56,854 INFO  L125   PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES.
[2024-11-20 09:33:56,865 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 8331 conditions, 4509 events. 2345/4509 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 27466 event pairs, 2178 based on Foata normal form. 406/4207 useless extension candidates. Maximal degree in co-relation 7099. Up to 3752 conditions per place. 
[2024-11-20 09:33:56,885 INFO  L140   encePairwiseOnDemand]: 62/77 looper letters, 47 selfloop transitions, 2 changer transitions 0/64 dead transitions.
[2024-11-20 09:33:56,886 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 240 flow
[2024-11-20 09:33:56,887 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-20 09:33:56,890 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-20 09:33:56,896 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 107 transitions.
[2024-11-20 09:33:56,898 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.46320346320346323
[2024-11-20 09:33:56,900 INFO  L175             Difference]: Start difference. First operand has 63 places, 75 transitions, 164 flow. Second operand 3 states and 107 transitions.
[2024-11-20 09:33:56,901 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 240 flow
[2024-11-20 09:33:56,906 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 64 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-20 09:33:56,910 INFO  L231             Difference]: Finished difference. Result has 66 places, 64 transitions, 152 flow
[2024-11-20 09:33:56,912 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=66, PETRI_TRANSITIONS=64}
[2024-11-20 09:33:56,915 INFO  L277   CegarLoopForPetriNet]: 63 programPoint places, 3 predicate places.
[2024-11-20 09:33:56,916 INFO  L471      AbstractCegarLoop]: Abstraction has has 66 places, 64 transitions, 152 flow
[2024-11-20 09:33:56,918 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-20 09:33:56,918 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-20 09:33:56,918 INFO  L204   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2024-11-20 09:33:56,918 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-20 09:33:56,919 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-20 09:33:56,919 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 09:33:56,919 INFO  L85        PathProgramCache]: Analyzing trace with hash -2118701245, now seen corresponding path program 1 times
[2024-11-20 09:33:56,919 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 09:33:56,920 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882658864]
[2024-11-20 09:33:56,920 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 09:33:56,920 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 09:33:57,099 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 09:33:57,561 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-20 09:33:57,561 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 09:33:57,561 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882658864]
[2024-11-20 09:33:57,561 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882658864] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-20 09:33:57,562 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904424010]
[2024-11-20 09:33:57,562 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 09:33:57,562 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-20 09:33:57,562 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-20 09:33:57,566 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)
[2024-11-20 09:33:57,569 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-20 09:33:58,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 09:33:58,304 INFO  L255         TraceCheckSpWp]: Trace formula consists of 3764 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-20 09:33:58,312 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-20 09:33:58,350 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-20 09:33:58,350 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-20 09:33:58,368 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-20 09:33:58,368 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [904424010] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-20 09:33:58,369 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-20 09:33:58,369 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2024-11-20 09:33:58,370 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201396523]
[2024-11-20 09:33:58,370 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-20 09:33:58,370 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-20 09:33:58,371 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 09:33:58,371 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-20 09:33:58,371 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-20 09:33:58,372 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 77
[2024-11-20 09:33:58,372 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 64 transitions, 152 flow. Second operand  has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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)
[2024-11-20 09:33:58,372 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-20 09:33:58,372 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 77
[2024-11-20 09:33:58,373 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-20 09:33:59,386 INFO  L124   PetriNetUnfolderBase]: 2345/4512 cut-off events.
[2024-11-20 09:33:59,387 INFO  L125   PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES.
[2024-11-20 09:33:59,394 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 8347 conditions, 4512 events. 2345/4512 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 27467 event pairs, 2178 based on Foata normal form. 0/3804 useless extension candidates. Maximal degree in co-relation 8334. Up to 3752 conditions per place. 
[2024-11-20 09:33:59,408 INFO  L140   encePairwiseOnDemand]: 74/77 looper letters, 47 selfloop transitions, 5 changer transitions 0/67 dead transitions.
[2024-11-20 09:33:59,409 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 67 transitions, 268 flow
[2024-11-20 09:33:59,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-20 09:33:59,410 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-20 09:33:59,412 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions.
[2024-11-20 09:33:59,412 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.31385281385281383
[2024-11-20 09:33:59,413 INFO  L175             Difference]: Start difference. First operand has 66 places, 64 transitions, 152 flow. Second operand 6 states and 145 transitions.
[2024-11-20 09:33:59,413 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 67 transitions, 268 flow
[2024-11-20 09:33:59,415 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 264 flow, removed 1 selfloop flow, removed 1 redundant places.
[2024-11-20 09:33:59,416 INFO  L231             Difference]: Finished difference. Result has 73 places, 67 transitions, 184 flow
[2024-11-20 09:33:59,417 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=184, PETRI_PLACES=73, PETRI_TRANSITIONS=67}
[2024-11-20 09:33:59,417 INFO  L277   CegarLoopForPetriNet]: 63 programPoint places, 10 predicate places.
[2024-11-20 09:33:59,418 INFO  L471      AbstractCegarLoop]: Abstraction has has 73 places, 67 transitions, 184 flow
[2024-11-20 09:33:59,418 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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)
[2024-11-20 09:33:59,418 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-20 09:33:59,418 INFO  L204   CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1]
[2024-11-20 09:33:59,437 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-20 09:33:59,622 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-20 09:33:59,623 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-20 09:33:59,623 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 09:33:59,623 INFO  L85        PathProgramCache]: Analyzing trace with hash -2006718781, now seen corresponding path program 2 times
[2024-11-20 09:33:59,624 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 09:33:59,624 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327970080]
[2024-11-20 09:33:59,624 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 09:33:59,624 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 09:33:59,769 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 09:34:00,357 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-20 09:34:00,357 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 09:34:00,357 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327970080]
[2024-11-20 09:34:00,358 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327970080] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-20 09:34:00,358 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607808155]
[2024-11-20 09:34:00,358 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-20 09:34:00,358 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-20 09:34:00,358 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-20 09:34:00,361 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)
[2024-11-20 09:34:00,363 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-20 09:34:01,017 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-20 09:34:01,017 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-20 09:34:01,037 INFO  L255         TraceCheckSpWp]: Trace formula consists of 3917 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-20 09:34:01,041 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-20 09:34:01,059 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-20 09:34:01,060 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-20 09:34:01,122 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-20 09:34:01,123 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607808155] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-20 09:34:01,123 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-20 09:34:01,123 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12
[2024-11-20 09:34:01,124 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109899127]
[2024-11-20 09:34:01,124 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-20 09:34:01,124 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-20 09:34:01,125 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 09:34:01,126 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-20 09:34:01,127 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-11-20 09:34:01,128 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 77
[2024-11-20 09:34:01,129 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 67 transitions, 184 flow. Second operand  has 13 states, 13 states have (on average 16.307692307692307) internal successors, (212), 13 states have internal predecessors, (212), 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)
[2024-11-20 09:34:01,129 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-20 09:34:01,129 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 77
[2024-11-20 09:34:01,129 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-20 09:34:01,974 INFO  L124   PetriNetUnfolderBase]: 2345/4518 cut-off events.
[2024-11-20 09:34:01,974 INFO  L125   PetriNetUnfolderBase]: For 155/155 co-relation queries the response was YES.
[2024-11-20 09:34:01,982 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 8384 conditions, 4518 events. 2345/4518 cut-off events. For 155/155 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 27479 event pairs, 2178 based on Foata normal form. 6/3817 useless extension candidates. Maximal degree in co-relation 8325. Up to 3752 conditions per place. 
[2024-11-20 09:34:02,000 INFO  L140   encePairwiseOnDemand]: 74/77 looper letters, 47 selfloop transitions, 11 changer transitions 0/73 dead transitions.
[2024-11-20 09:34:02,000 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 73 transitions, 336 flow
[2024-11-20 09:34:02,001 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-11-20 09:34:02,001 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2024-11-20 09:34:02,002 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 244 transitions.
[2024-11-20 09:34:02,003 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.26406926406926406
[2024-11-20 09:34:02,003 INFO  L175             Difference]: Start difference. First operand has 73 places, 67 transitions, 184 flow. Second operand 12 states and 244 transitions.
[2024-11-20 09:34:02,003 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 73 transitions, 336 flow
[2024-11-20 09:34:02,007 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 73 transitions, 322 flow, removed 6 selfloop flow, removed 1 redundant places.
[2024-11-20 09:34:02,009 INFO  L231             Difference]: Finished difference. Result has 89 places, 73 transitions, 254 flow
[2024-11-20 09:34:02,010 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=254, PETRI_PLACES=89, PETRI_TRANSITIONS=73}
[2024-11-20 09:34:02,012 INFO  L277   CegarLoopForPetriNet]: 63 programPoint places, 26 predicate places.
[2024-11-20 09:34:02,012 INFO  L471      AbstractCegarLoop]: Abstraction has has 89 places, 73 transitions, 254 flow
[2024-11-20 09:34:02,012 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 16.307692307692307) internal successors, (212), 13 states have internal predecessors, (212), 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)
[2024-11-20 09:34:02,013 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-20 09:34:02,013 INFO  L204   CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1]
[2024-11-20 09:34:02,031 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-20 09:34:02,213 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2024-11-20 09:34:02,214 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-20 09:34:02,214 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 09:34:02,214 INFO  L85        PathProgramCache]: Analyzing trace with hash -1564010813, now seen corresponding path program 3 times
[2024-11-20 09:34:02,215 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 09:34:02,215 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653752955]
[2024-11-20 09:34:02,215 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 09:34:02,215 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 09:34:02,362 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 09:34:03,248 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-20 09:34:03,249 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 09:34:03,249 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653752955]
[2024-11-20 09:34:03,249 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653752955] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-20 09:34:03,251 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310450630]
[2024-11-20 09:34:03,251 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-20 09:34:03,251 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-20 09:34:03,252 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-20 09:34:03,255 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)
[2024-11-20 09:34:03,257 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-20 09:34:15,529 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s)
[2024-11-20 09:34:15,529 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-20 09:34:15,556 INFO  L255         TraceCheckSpWp]: Trace formula consists of 4223 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-20 09:34:15,560 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-20 09:34:15,608 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-20 09:34:15,610 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-20 09:34:15,780 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-20 09:34:15,780 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310450630] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-20 09:34:15,780 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-20 09:34:15,781 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24
[2024-11-20 09:34:15,781 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843440817]
[2024-11-20 09:34:15,781 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-20 09:34:15,781 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2024-11-20 09:34:15,782 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-20 09:34:15,782 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2024-11-20 09:34:15,783 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600
[2024-11-20 09:34:15,784 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 77
[2024-11-20 09:34:15,784 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 73 transitions, 254 flow. Second operand  has 25 states, 25 states have (on average 16.16) internal successors, (404), 25 states have internal predecessors, (404), 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)
[2024-11-20 09:34:15,785 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-20 09:34:15,785 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 77
[2024-11-20 09:34:15,785 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-20 09:34:16,704 INFO  L124   PetriNetUnfolderBase]: 2345/4530 cut-off events.
[2024-11-20 09:34:16,704 INFO  L125   PetriNetUnfolderBase]: For 598/598 co-relation queries the response was YES.
[2024-11-20 09:34:16,719 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 8468 conditions, 4530 events. 2345/4530 cut-off events. For 598/598 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 27459 event pairs, 2178 based on Foata normal form. 12/3835 useless extension candidates. Maximal degree in co-relation 8331. Up to 3752 conditions per place. 
[2024-11-20 09:34:16,734 INFO  L140   encePairwiseOnDemand]: 74/77 looper letters, 47 selfloop transitions, 23 changer transitions 0/85 dead transitions.
[2024-11-20 09:34:16,735 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 85 transitions, 490 flow
[2024-11-20 09:34:16,735 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2024-11-20 09:34:16,735 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 24 states.
[2024-11-20 09:34:16,737 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 442 transitions.
[2024-11-20 09:34:16,738 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.23917748917748918
[2024-11-20 09:34:16,738 INFO  L175             Difference]: Start difference. First operand has 89 places, 73 transitions, 254 flow. Second operand 24 states and 442 transitions.
[2024-11-20 09:34:16,739 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 85 transitions, 490 flow
[2024-11-20 09:34:16,743 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 85 transitions, 418 flow, removed 31 selfloop flow, removed 5 redundant places.
[2024-11-20 09:34:16,745 INFO  L231             Difference]: Finished difference. Result has 119 places, 85 transitions, 374 flow
[2024-11-20 09:34:16,745 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=374, PETRI_PLACES=119, PETRI_TRANSITIONS=85}
[2024-11-20 09:34:16,746 INFO  L277   CegarLoopForPetriNet]: 63 programPoint places, 56 predicate places.
[2024-11-20 09:34:16,746 INFO  L471      AbstractCegarLoop]: Abstraction has has 119 places, 85 transitions, 374 flow
[2024-11-20 09:34:16,746 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 25 states, 25 states have (on average 16.16) internal successors, (404), 25 states have internal predecessors, (404), 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)
[2024-11-20 09:34:16,747 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-20 09:34:16,747 INFO  L204   CegarLoopForPetriNet]: trace histogram [22, 2, 1, 1, 1, 1, 1]
[2024-11-20 09:34:16,774 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-20 09:34:16,947 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-20 09:34:16,947 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-11-20 09:34:16,948 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-20 09:34:16,948 INFO  L85        PathProgramCache]: Analyzing trace with hash -2128513341, now seen corresponding path program 4 times
[2024-11-20 09:34:16,948 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-20 09:34:16,948 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230981922]
[2024-11-20 09:34:16,948 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-20 09:34:16,948 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-20 09:34:17,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-20 09:34:19,060 INFO  L134       CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-20 09:34:19,060 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-20 09:34:19,060 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230981922]
[2024-11-20 09:34:19,060 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230981922] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-20 09:34:19,061 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549560673]
[2024-11-20 09:34:19,061 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-20 09:34:19,061 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-20 09:34:19,061 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-20 09:34:19,064 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)
[2024-11-20 09:34:19,065 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-20 09:34:19,870 INFO  L227   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-20 09:34:19,870 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-20 09:34:19,892 INFO  L255         TraceCheckSpWp]: Trace formula consists of 4835 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-20 09:34:19,902 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-20 09:34:19,967 INFO  L134       CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-20 09:34:19,967 INFO  L311         TraceCheckSpWp]: Computing backward predicates...