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


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


Checking for ERROR reachability
Using default analysis
Version c7c6ca5d
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../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-?-c7c6ca5-m
[2024-11-09 02:38:16,592 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-09 02:38:16,690 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-09 02:38:16,694 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-09 02:38:16,694 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-09 02:38:16,724 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-09 02:38:16,725 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-09 02:38:16,725 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-09 02:38:16,726 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-09 02:38:16,727 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-09 02:38:16,728 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-09 02:38:16,728 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-09 02:38:16,729 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-09 02:38:16,729 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-09 02:38:16,729 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-09 02:38:16,730 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-09 02:38:16,730 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-09 02:38:16,730 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-09 02:38:16,731 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-09 02:38:16,731 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-09 02:38:16,734 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-09 02:38:16,734 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-09 02:38:16,735 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-09 02:38:16,735 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-09 02:38:16,738 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-09 02:38:16,738 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-09 02:38:16,739 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-09 02:38:16,739 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-09 02:38:16,739 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-09 02:38:16,739 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-09 02:38:16,740 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-09 02:38:16,740 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-09 02:38:16,740 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-09 02:38:16,740 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-09 02:38:16,741 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-09 02:38:16,741 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-09 02:38:16,741 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-09 02:38:16,741 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-09 02:38:16,742 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-09 02:38:16,742 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-09 02:38:16,743 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-09 02:38:16,743 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-09 02:38:16,744 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
[2024-11-09 02:38:17,014 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-09 02:38:17,041 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-09 02:38:17,045 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-09 02:38:17,046 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-09 02:38:17,047 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-09 02:38:17,048 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i
[2024-11-09 02:38:18,509 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-09 02:38:18,804 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-09 02:38:18,805 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i
[2024-11-09 02:38:18,830 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5747b6ef3/d0b72f17cb9c421782ff09c38b9e1ad1/FLAG1825d01d4
[2024-11-09 02:38:18,848 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5747b6ef3/d0b72f17cb9c421782ff09c38b9e1ad1
[2024-11-09 02:38:18,851 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-09 02:38:18,853 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-09 02:38:18,857 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-09 02:38:18,857 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-09 02:38:18,863 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-09 02:38:18,864 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:38:18" (1/1) ...
[2024-11-09 02:38:18,865 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f9bd311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:18, skipping insertion in model container
[2024-11-09 02:38:18,865 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:38:18" (1/1) ...
[2024-11-09 02:38:18,922 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-09 02:38:19,387 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]
[2024-11-09 02:38:19,441 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-09 02:38:19,771 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-09 02:38:19,815 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]
[2024-11-09 02:38:19,837 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-09 02:38:19,943 INFO  L204         MainTranslator]: Completed translation
[2024-11-09 02:38:19,945 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19 WrapperNode
[2024-11-09 02:38:19,945 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-09 02:38:19,948 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-09 02:38:19,948 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-09 02:38:19,949 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-09 02:38:19,955 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (1/1) ...
[2024-11-09 02:38:19,996 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (1/1) ...
[2024-11-09 02:38:20,112 INFO  L138                Inliner]: procedures = 280, calls = 1605, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 1794
[2024-11-09 02:38:20,113 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-09 02:38:20,114 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-09 02:38:20,114 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-09 02:38:20,114 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-09 02:38:20,127 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (1/1) ...
[2024-11-09 02:38:20,127 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (1/1) ...
[2024-11-09 02:38:20,149 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (1/1) ...
[2024-11-09 02:38:20,205 INFO  L175           MemorySlicer]: Split 1569 memory accesses to 8 slices as follows [2, 2, 5, 259, 5, 1280, 2, 14]. 82 percent of accesses are in the largest equivalence class. The 1548 initializations are split as follows [2, 0, 5, 256, 5, 1280, 0, 0]. The 11 writes are split as follows [0, 1, 0, 1, 0, 0, 1, 8].
[2024-11-09 02:38:20,206 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (1/1) ...
[2024-11-09 02:38:20,206 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (1/1) ...
[2024-11-09 02:38:20,257 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (1/1) ...
[2024-11-09 02:38:20,266 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (1/1) ...
[2024-11-09 02:38:20,282 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (1/1) ...
[2024-11-09 02:38:20,296 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (1/1) ...
[2024-11-09 02:38:20,319 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-09 02:38:20,322 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-09 02:38:20,322 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-09 02:38:20,322 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-09 02:38:20,323 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (1/1) ...
[2024-11-09 02:38:20,328 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-09 02:38:20,344 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-09 02:38:20,362 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)
[2024-11-09 02:38:20,366 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
[2024-11-09 02:38:20,413 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-09 02:38:20,413 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-09 02:38:20,414 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-09 02:38:20,415 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-09 02:38:20,415 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-11-09 02:38:20,415 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-11-09 02:38:20,415 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#5
[2024-11-09 02:38:20,416 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#6
[2024-11-09 02:38:20,417 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#7
[2024-11-09 02:38:20,417 INFO  L130     BoogieDeclarations]: Found specification of procedure t1_fun
[2024-11-09 02:38:20,417 INFO  L138     BoogieDeclarations]: Found implementation of procedure t1_fun
[2024-11-09 02:38:20,417 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-09 02:38:20,417 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-09 02:38:20,417 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-09 02:38:20,418 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-09 02:38:20,418 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3
[2024-11-09 02:38:20,418 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4
[2024-11-09 02:38:20,418 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5
[2024-11-09 02:38:20,418 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6
[2024-11-09 02:38:20,418 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7
[2024-11-09 02:38:20,418 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-09 02:38:20,418 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-09 02:38:20,419 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-09 02:38:20,419 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-09 02:38:20,419 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#3
[2024-11-09 02:38:20,419 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#4
[2024-11-09 02:38:20,419 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#5
[2024-11-09 02:38:20,420 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#6
[2024-11-09 02:38:20,420 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#7
[2024-11-09 02:38:20,421 INFO  L130     BoogieDeclarations]: Found specification of procedure t2_fun
[2024-11-09 02:38:20,421 INFO  L138     BoogieDeclarations]: Found implementation of procedure t2_fun
[2024-11-09 02:38:20,422 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-09 02:38:20,422 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-09 02:38:20,422 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-09 02:38:20,422 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-09 02:38:20,423 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#4
[2024-11-09 02:38:20,423 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#5
[2024-11-09 02:38:20,423 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#6
[2024-11-09 02:38:20,423 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#7
[2024-11-09 02:38:20,424 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-09 02:38:20,424 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-09 02:38:20,424 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-09 02:38:20,424 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-09 02:38:20,424 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-09 02:38:20,424 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-11-09 02:38:20,425 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2024-11-09 02:38:20,425 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#4
[2024-11-09 02:38:20,425 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#5
[2024-11-09 02:38:20,426 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#6
[2024-11-09 02:38:20,426 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#7
[2024-11-09 02:38:20,426 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-09 02:38:20,426 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-09 02:38:20,426 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-09 02:38:20,426 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-09 02:38:20,426 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-11-09 02:38:20,427 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2024-11-09 02:38:20,427 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2024-11-09 02:38:20,427 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2024-11-09 02:38:20,427 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-09 02:38:20,427 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-09 02:38:20,431 WARN  L207             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-09 02:38:20,675 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-09 02:38:20,679 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-09 02:38:22,677 INFO  L283             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-09 02:38:22,678 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-09 02:39:05,387 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-09 02:39:05,387 INFO  L316             CfgBuilder]: Removed 16 assume(true) statements.
[2024-11-09 02:39:05,388 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:39:05 BoogieIcfgContainer
[2024-11-09 02:39:05,388 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-09 02:39:05,390 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-09 02:39:05,390 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-09 02:39:05,393 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-09 02:39:05,394 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:38:18" (1/3) ...
[2024-11-09 02:39:05,394 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3883230d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:39:05, skipping insertion in model container
[2024-11-09 02:39:05,395 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:38:19" (2/3) ...
[2024-11-09 02:39:05,395 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3883230d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:39:05, skipping insertion in model container
[2024-11-09 02:39:05,395 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:39:05" (3/3) ...
[2024-11-09 02:39:05,399 INFO  L112   eAbstractionObserver]: Analyzing ICFG 28-race_reach_86-lists_racing.i
[2024-11-09 02:39:05,419 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-09 02:39:05,419 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-09 02:39:05,419 INFO  L489   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-09 02:39:05,541 INFO  L143    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-11-09 02:39:05,592 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 63 places, 77 transitions, 174 flow
[2024-11-09 02:39:05,708 INFO  L124   PetriNetUnfolderBase]: 37/157 cut-off events.
[2024-11-09 02:39:05,709 INFO  L125   PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2024-11-09 02:39:05,715 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. 
[2024-11-09 02:39:05,716 INFO  L82        GeneralOperation]: Start removeDead. Operand has 63 places, 77 transitions, 174 flow
[2024-11-09 02:39:05,720 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 63 places, 75 transitions, 164 flow
[2024-11-09 02:39:05,734 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-09 02:39:05,742 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;@3b3e488c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-09 02:39:05,743 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2024-11-09 02:39:05,802 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-09 02:39:05,802 INFO  L124   PetriNetUnfolderBase]: 1/20 cut-off events.
[2024-11-09 02:39:05,803 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-09 02:39:05,804 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-09 02:39:05,804 INFO  L204   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1]
[2024-11-09 02:39:05,805 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)] ===
[2024-11-09 02:39:05,810 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 02:39:05,811 INFO  L85        PathProgramCache]: Analyzing trace with hash -183646525, now seen corresponding path program 1 times
[2024-11-09 02:39:05,820 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 02:39:05,821 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923812369]
[2024-11-09 02:39:05,821 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 02:39:05,821 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 02:39:06,255 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 02:39:06,681 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-09 02:39:06,682 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 02:39:06,682 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923812369]
[2024-11-09 02:39:06,682 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923812369] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 02:39:06,682 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 02:39:06,686 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-09 02:39:06,692 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277502015]
[2024-11-09 02:39:06,693 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 02:39:06,701 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 02:39:06,708 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 02:39:06,735 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 02:39:06,736 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 02:39:06,737 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 77
[2024-11-09 02:39:06,739 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)
[2024-11-09 02:39:06,739 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-09 02:39:06,739 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 77
[2024-11-09 02:39:06,740 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-09 02:39:07,767 INFO  L124   PetriNetUnfolderBase]: 2345/4509 cut-off events.
[2024-11-09 02:39:07,767 INFO  L125   PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES.
[2024-11-09 02:39:07,777 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. 
[2024-11-09 02:39:07,796 INFO  L140   encePairwiseOnDemand]: 62/77 looper letters, 47 selfloop transitions, 2 changer transitions 0/64 dead transitions.
[2024-11-09 02:39:07,796 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 240 flow
[2024-11-09 02:39:07,797 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 02:39:07,800 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-09 02:39:07,806 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 107 transitions.
[2024-11-09 02:39:07,808 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.46320346320346323
[2024-11-09 02:39:07,809 INFO  L175             Difference]: Start difference. First operand has 63 places, 75 transitions, 164 flow. Second operand 3 states and 107 transitions.
[2024-11-09 02:39:07,810 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 240 flow
[2024-11-09 02:39:07,814 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 64 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-09 02:39:07,817 INFO  L231             Difference]: Finished difference. Result has 66 places, 64 transitions, 152 flow
[2024-11-09 02:39:07,819 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}
[2024-11-09 02:39:07,822 INFO  L277   CegarLoopForPetriNet]: 63 programPoint places, 3 predicate places.
[2024-11-09 02:39:07,822 INFO  L471      AbstractCegarLoop]: Abstraction has has 66 places, 64 transitions, 152 flow
[2024-11-09 02:39:07,823 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)
[2024-11-09 02:39:07,823 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-09 02:39:07,823 INFO  L204   CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2024-11-09 02:39:07,823 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-09 02:39:07,824 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)] ===
[2024-11-09 02:39:07,824 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 02:39:07,824 INFO  L85        PathProgramCache]: Analyzing trace with hash -2118701245, now seen corresponding path program 1 times
[2024-11-09 02:39:07,825 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 02:39:07,825 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293603681]
[2024-11-09 02:39:07,825 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 02:39:07,825 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 02:39:07,962 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 02:39:08,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-09 02:39:08,334 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 02:39:08,334 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293603681]
[2024-11-09 02:39:08,335 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293603681] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-09 02:39:08,335 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658282040]
[2024-11-09 02:39:08,335 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 02:39:08,336 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-09 02:39:08,336 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-09 02:39:08,338 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)
[2024-11-09 02:39:08,340 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-09 02:39:09,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 02:39:09,103 INFO  L255         TraceCheckSpWp]: Trace formula consists of 3764 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-09 02:39:09,109 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-09 02:39:09,138 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-09 02:39:09,138 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-09 02:39:09,160 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-09 02:39:09,160 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658282040] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-09 02:39:09,160 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-09 02:39:09,161 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2024-11-09 02:39:09,161 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129613758]
[2024-11-09 02:39:09,161 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-09 02:39:09,162 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-09 02:39:09,162 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 02:39:09,163 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-09 02:39:09,163 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-09 02:39:09,165 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 77
[2024-11-09 02:39:09,166 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)
[2024-11-09 02:39:09,167 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-09 02:39:09,167 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 77
[2024-11-09 02:39:09,167 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-09 02:39:10,143 INFO  L124   PetriNetUnfolderBase]: 2345/4512 cut-off events.
[2024-11-09 02:39:10,143 INFO  L125   PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES.
[2024-11-09 02:39:10,151 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. 
[2024-11-09 02:39:10,165 INFO  L140   encePairwiseOnDemand]: 74/77 looper letters, 47 selfloop transitions, 5 changer transitions 0/67 dead transitions.
[2024-11-09 02:39:10,165 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 67 transitions, 268 flow
[2024-11-09 02:39:10,166 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-09 02:39:10,166 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-09 02:39:10,167 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions.
[2024-11-09 02:39:10,168 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.31385281385281383
[2024-11-09 02:39:10,168 INFO  L175             Difference]: Start difference. First operand has 66 places, 64 transitions, 152 flow. Second operand 6 states and 145 transitions.
[2024-11-09 02:39:10,168 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 67 transitions, 268 flow
[2024-11-09 02:39:10,170 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 264 flow, removed 1 selfloop flow, removed 1 redundant places.
[2024-11-09 02:39:10,171 INFO  L231             Difference]: Finished difference. Result has 73 places, 67 transitions, 184 flow
[2024-11-09 02:39:10,172 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}
[2024-11-09 02:39:10,173 INFO  L277   CegarLoopForPetriNet]: 63 programPoint places, 10 predicate places.
[2024-11-09 02:39:10,173 INFO  L471      AbstractCegarLoop]: Abstraction has has 73 places, 67 transitions, 184 flow
[2024-11-09 02:39:10,173 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)
[2024-11-09 02:39:10,173 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-09 02:39:10,174 INFO  L204   CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1]
[2024-11-09 02:39:10,198 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-09 02:39:10,374 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
[2024-11-09 02:39:10,375 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)] ===
[2024-11-09 02:39:10,376 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 02:39:10,376 INFO  L85        PathProgramCache]: Analyzing trace with hash -2006718781, now seen corresponding path program 2 times
[2024-11-09 02:39:10,376 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 02:39:10,376 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748862702]
[2024-11-09 02:39:10,376 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 02:39:10,377 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 02:39:10,527 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 02:39:11,071 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-09 02:39:11,072 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 02:39:11,072 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748862702]
[2024-11-09 02:39:11,072 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748862702] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-09 02:39:11,073 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598962104]
[2024-11-09 02:39:11,073 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-09 02:39:11,073 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-09 02:39:11,073 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-09 02:39:11,075 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)
[2024-11-09 02:39:11,078 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-09 02:39:11,779 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-09 02:39:11,779 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-09 02:39:11,792 INFO  L255         TraceCheckSpWp]: Trace formula consists of 3917 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-09 02:39:11,795 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-09 02:39:11,810 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-09 02:39:11,810 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-09 02:39:11,875 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-09 02:39:11,875 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [598962104] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-09 02:39:11,875 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-09 02:39:11,875 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12
[2024-11-09 02:39:11,876 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645727106]
[2024-11-09 02:39:11,876 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-09 02:39:11,876 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-09 02:39:11,877 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 02:39:11,877 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-09 02:39:11,877 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-11-09 02:39:11,878 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 77
[2024-11-09 02:39:11,880 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)
[2024-11-09 02:39:11,880 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-09 02:39:11,880 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 77
[2024-11-09 02:39:11,880 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-09 02:39:12,674 INFO  L124   PetriNetUnfolderBase]: 2345/4518 cut-off events.
[2024-11-09 02:39:12,674 INFO  L125   PetriNetUnfolderBase]: For 155/155 co-relation queries the response was YES.
[2024-11-09 02:39:12,683 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. 
[2024-11-09 02:39:12,696 INFO  L140   encePairwiseOnDemand]: 74/77 looper letters, 47 selfloop transitions, 11 changer transitions 0/73 dead transitions.
[2024-11-09 02:39:12,697 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 73 transitions, 336 flow
[2024-11-09 02:39:12,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-11-09 02:39:12,697 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2024-11-09 02:39:12,699 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 244 transitions.
[2024-11-09 02:39:12,699 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.26406926406926406
[2024-11-09 02:39:12,699 INFO  L175             Difference]: Start difference. First operand has 73 places, 67 transitions, 184 flow. Second operand 12 states and 244 transitions.
[2024-11-09 02:39:12,699 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 73 transitions, 336 flow
[2024-11-09 02:39:12,702 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 73 transitions, 322 flow, removed 6 selfloop flow, removed 1 redundant places.
[2024-11-09 02:39:12,703 INFO  L231             Difference]: Finished difference. Result has 89 places, 73 transitions, 254 flow
[2024-11-09 02:39:12,703 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}
[2024-11-09 02:39:12,704 INFO  L277   CegarLoopForPetriNet]: 63 programPoint places, 26 predicate places.
[2024-11-09 02:39:12,704 INFO  L471      AbstractCegarLoop]: Abstraction has has 89 places, 73 transitions, 254 flow
[2024-11-09 02:39:12,705 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)
[2024-11-09 02:39:12,705 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-09 02:39:12,705 INFO  L204   CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1]
[2024-11-09 02:39:12,732 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-09 02:39:12,905 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
[2024-11-09 02:39:12,906 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)] ===
[2024-11-09 02:39:12,906 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 02:39:12,907 INFO  L85        PathProgramCache]: Analyzing trace with hash -1564010813, now seen corresponding path program 3 times
[2024-11-09 02:39:12,907 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 02:39:12,908 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799120884]
[2024-11-09 02:39:12,908 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 02:39:12,908 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 02:39:13,052 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 02:39:13,897 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-09 02:39:13,897 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 02:39:13,897 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799120884]
[2024-11-09 02:39:13,898 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799120884] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-09 02:39:13,899 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444645301]
[2024-11-09 02:39:13,899 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-09 02:39:13,899 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-09 02:39:13,899 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-09 02:39:13,902 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)
[2024-11-09 02:39:13,905 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-09 02:39:25,095 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s)
[2024-11-09 02:39:25,095 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-09 02:39:25,130 INFO  L255         TraceCheckSpWp]: Trace formula consists of 4223 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-09 02:39:25,134 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-09 02:39:25,163 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-09 02:39:25,163 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-09 02:39:25,343 INFO  L134       CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-09 02:39:25,343 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444645301] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-09 02:39:25,344 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-09 02:39:25,344 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24
[2024-11-09 02:39:25,344 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019910029]
[2024-11-09 02:39:25,344 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-09 02:39:25,344 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2024-11-09 02:39:25,345 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-09 02:39:25,345 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2024-11-09 02:39:25,346 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600
[2024-11-09 02:39:25,350 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 15 out of 77
[2024-11-09 02:39:25,350 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)
[2024-11-09 02:39:25,350 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-09 02:39:25,351 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 77
[2024-11-09 02:39:25,351 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-09 02:39:26,244 INFO  L124   PetriNetUnfolderBase]: 2345/4530 cut-off events.
[2024-11-09 02:39:26,244 INFO  L125   PetriNetUnfolderBase]: For 598/598 co-relation queries the response was YES.
[2024-11-09 02:39:26,258 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. 
[2024-11-09 02:39:26,278 INFO  L140   encePairwiseOnDemand]: 74/77 looper letters, 47 selfloop transitions, 23 changer transitions 0/85 dead transitions.
[2024-11-09 02:39:26,278 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 85 transitions, 490 flow
[2024-11-09 02:39:26,280 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2024-11-09 02:39:26,280 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 24 states.
[2024-11-09 02:39:26,282 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 442 transitions.
[2024-11-09 02:39:26,282 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.23917748917748918
[2024-11-09 02:39:26,282 INFO  L175             Difference]: Start difference. First operand has 89 places, 73 transitions, 254 flow. Second operand 24 states and 442 transitions.
[2024-11-09 02:39:26,283 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 85 transitions, 490 flow
[2024-11-09 02:39:26,291 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 85 transitions, 418 flow, removed 31 selfloop flow, removed 5 redundant places.
[2024-11-09 02:39:26,293 INFO  L231             Difference]: Finished difference. Result has 119 places, 85 transitions, 374 flow
[2024-11-09 02:39:26,293 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}
[2024-11-09 02:39:26,294 INFO  L277   CegarLoopForPetriNet]: 63 programPoint places, 56 predicate places.
[2024-11-09 02:39:26,294 INFO  L471      AbstractCegarLoop]: Abstraction has has 119 places, 85 transitions, 374 flow
[2024-11-09 02:39:26,294 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)
[2024-11-09 02:39:26,295 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-09 02:39:26,295 INFO  L204   CegarLoopForPetriNet]: trace histogram [22, 2, 1, 1, 1, 1, 1]
[2024-11-09 02:39:26,339 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-09 02:39:26,495 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
[2024-11-09 02:39:26,496 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)] ===
[2024-11-09 02:39:26,496 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 02:39:26,496 INFO  L85        PathProgramCache]: Analyzing trace with hash -2128513341, now seen corresponding path program 4 times
[2024-11-09 02:39:26,496 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-09 02:39:26,496 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671705138]
[2024-11-09 02:39:26,496 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 02:39:26,497 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 02:39:26,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 02:39:28,562 INFO  L134       CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-09 02:39:28,563 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-09 02:39:28,563 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671705138]
[2024-11-09 02:39:28,563 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671705138] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-09 02:39:28,563 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320673360]
[2024-11-09 02:39:28,563 INFO  L93    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-11-09 02:39:28,564 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-09 02:39:28,564 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-09 02:39:28,565 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)
[2024-11-09 02:39:28,566 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-09 02:39:29,397 INFO  L227   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-11-09 02:39:29,398 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-09 02:39:29,414 INFO  L255         TraceCheckSpWp]: Trace formula consists of 4835 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-09 02:39:29,420 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-09 02:39:29,481 INFO  L134       CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-09 02:39:29,481 INFO  L311         TraceCheckSpWp]: Computing backward predicates...