./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 803cd42f
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 ../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.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 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-22 13:39:17,798 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-22 13:39:17,865 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-22 13:39:17,871 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-22 13:39:17,873 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-22 13:39:17,895 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-22 13:39:17,896 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-22 13:39:17,897 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-22 13:39:17,897 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-22 13:39:17,898 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-22 13:39:17,898 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-22 13:39:17,899 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-22 13:39:17,899 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-22 13:39:17,899 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-22 13:39:17,901 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-22 13:39:17,901 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-22 13:39:17,901 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-22 13:39:17,902 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-22 13:39:17,902 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-22 13:39:17,902 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-22 13:39:17,902 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-22 13:39:17,906 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-22 13:39:17,906 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-22 13:39:17,906 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-22 13:39:17,906 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-22 13:39:17,906 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-22 13:39:17,906 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-22 13:39:17,907 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-22 13:39:17,907 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-22 13:39:17,907 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-22 13:39:17,907 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-22 13:39:17,907 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-22 13:39:17,907 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 13:39:17,908 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-22 13:39:17,908 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-22 13:39:17,908 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-22 13:39:17,908 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-22 13:39:17,908 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-22 13:39:17,908 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-22 13:39:17,909 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-22 13:39:17,909 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-22 13:39:17,909 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-22 13:39:17,910 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 -> 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf
[2024-11-22 13:39:18,125 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-22 13:39:18,145 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-22 13:39:18,147 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-22 13:39:18,148 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-22 13:39:18,148 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-22 13:39:18,149 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i
[2024-11-22 13:39:19,495 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-22 13:39:19,691 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-22 13:39:19,692 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i
[2024-11-22 13:39:19,701 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7323f1edb/c1aaab2b1afb42c1a8b0fb3c1eee0aa3/FLAG882391fd5
[2024-11-22 13:39:19,712 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7323f1edb/c1aaab2b1afb42c1a8b0fb3c1eee0aa3
[2024-11-22 13:39:19,713 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-22 13:39:19,714 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-22 13:39:19,715 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-22 13:39:19,715 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-22 13:39:19,722 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-22 13:39:19,722 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:39:19" (1/1) ...
[2024-11-22 13:39:19,723 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32be0d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:19, skipping insertion in model container
[2024-11-22 13:39:19,723 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:39:19" (1/1) ...
[2024-11-22 13:39:19,767 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-22 13:39:19,915 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/13-privatized_24-multiple-protecting_true.i[1096,1109]
[2024-11-22 13:39:20,005 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 13:39:20,024 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-22 13:39:20,033 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/13-privatized_24-multiple-protecting_true.i[1096,1109]
[2024-11-22 13:39:20,053 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 13:39:20,084 INFO  L204         MainTranslator]: Completed translation
[2024-11-22 13:39:20,085 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20 WrapperNode
[2024-11-22 13:39:20,085 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-22 13:39:20,086 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-22 13:39:20,086 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-22 13:39:20,086 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-22 13:39:20,091 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (1/1) ...
[2024-11-22 13:39:20,100 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (1/1) ...
[2024-11-22 13:39:20,167 INFO  L138                Inliner]: procedures = 162, calls = 53, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 101
[2024-11-22 13:39:20,173 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-22 13:39:20,174 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-22 13:39:20,174 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-22 13:39:20,174 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-22 13:39:20,185 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (1/1) ...
[2024-11-22 13:39:20,189 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (1/1) ...
[2024-11-22 13:39:20,194 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (1/1) ...
[2024-11-22 13:39:20,243 INFO  L175           MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0].
[2024-11-22 13:39:20,244 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (1/1) ...
[2024-11-22 13:39:20,246 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (1/1) ...
[2024-11-22 13:39:20,250 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (1/1) ...
[2024-11-22 13:39:20,254 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (1/1) ...
[2024-11-22 13:39:20,259 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (1/1) ...
[2024-11-22 13:39:20,260 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (1/1) ...
[2024-11-22 13:39:20,262 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-22 13:39:20,265 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-22 13:39:20,265 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-22 13:39:20,265 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-22 13:39:20,266 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (1/1) ...
[2024-11-22 13:39:20,270 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 13:39:20,279 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 13:39:20,293 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)
[2024-11-22 13:39:20,296 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
[2024-11-22 13:39:20,334 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-22 13:39:20,334 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-22 13:39:20,335 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2024-11-22 13:39:20,335 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2024-11-22 13:39:20,335 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-22 13:39:20,335 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-22 13:39:20,335 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-22 13:39:20,337 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-22 13:39:20,337 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-22 13:39:20,337 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-22 13:39:20,337 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-22 13:39:20,338 WARN  L207             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-22 13:39:20,441 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-22 13:39:20,442 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-22 13:39:20,651 INFO  L283             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-22 13:39:20,651 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-22 13:39:20,790 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-22 13:39:20,790 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-22 13:39:20,791 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:39:20 BoogieIcfgContainer
[2024-11-22 13:39:20,791 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-22 13:39:20,793 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-22 13:39:20,793 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-22 13:39:20,795 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-22 13:39:20,796 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:39:19" (1/3) ...
[2024-11-22 13:39:20,796 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b09d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:39:20, skipping insertion in model container
[2024-11-22 13:39:20,797 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:39:20" (2/3) ...
[2024-11-22 13:39:20,797 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b09d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:39:20, skipping insertion in model container
[2024-11-22 13:39:20,797 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:39:20" (3/3) ...
[2024-11-22 13:39:20,799 INFO  L112   eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i
[2024-11-22 13:39:20,810 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-22 13:39:20,811 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2024-11-22 13:39:20,811 INFO  L489   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-22 13:39:20,852 INFO  L143    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2024-11-22 13:39:20,883 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 75 places, 75 transitions, 157 flow
[2024-11-22 13:39:20,913 INFO  L124   PetriNetUnfolderBase]: 4/74 cut-off events.
[2024-11-22 13:39:20,913 INFO  L125   PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-11-22 13:39:20,916 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 79 conditions, 74 events. 4/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. 
[2024-11-22 13:39:20,917 INFO  L82        GeneralOperation]: Start removeDead. Operand has 75 places, 75 transitions, 157 flow
[2024-11-22 13:39:20,919 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 66 places, 65 transitions, 133 flow
[2024-11-22 13:39:20,930 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-22 13:39:20,936 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;@5aef235c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-22 13:39:20,936 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2024-11-22 13:39:20,941 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-22 13:39:20,941 INFO  L124   PetriNetUnfolderBase]: 1/16 cut-off events.
[2024-11-22 13:39:20,941 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-22 13:39:20,941 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-22 13:39:20,942 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 13:39:20,942 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2024-11-22 13:39:20,949 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 13:39:20,950 INFO  L85        PathProgramCache]: Analyzing trace with hash -27149027, now seen corresponding path program 1 times
[2024-11-22 13:39:20,958 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 13:39:20,958 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185478864]
[2024-11-22 13:39:20,958 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 13:39:20,959 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 13:39:21,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 13:39:21,204 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 13:39:21,205 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 13:39:21,205 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185478864]
[2024-11-22 13:39:21,206 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185478864] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 13:39:21,206 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 13:39:21,206 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 13:39:21,208 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840811033]
[2024-11-22 13:39:21,209 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 13:39:21,215 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 13:39:21,219 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 13:39:21,239 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 13:39:21,239 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 13:39:21,255 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 21 out of 75
[2024-11-22 13:39:21,258 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 65 transitions, 133 flow. Second operand  has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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)
[2024-11-22 13:39:21,258 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-22 13:39:21,258 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 75
[2024-11-22 13:39:21,259 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-22 13:39:21,530 INFO  L124   PetriNetUnfolderBase]: 443/1141 cut-off events.
[2024-11-22 13:39:21,530 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-22 13:39:21,533 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2094 conditions, 1141 events. 443/1141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6260 event pairs, 116 based on Foata normal form. 66/1153 useless extension candidates. Maximal degree in co-relation 2085. Up to 670 conditions per place. 
[2024-11-22 13:39:21,538 INFO  L140   encePairwiseOnDemand]: 58/75 looper letters, 69 selfloop transitions, 15 changer transitions 1/103 dead transitions.
[2024-11-22 13:39:21,538 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 103 transitions, 379 flow
[2024-11-22 13:39:21,539 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 13:39:21,541 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-22 13:39:21,547 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 200 transitions.
[2024-11-22 13:39:21,548 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.5333333333333333
[2024-11-22 13:39:21,550 INFO  L175             Difference]: Start difference. First operand has 66 places, 65 transitions, 133 flow. Second operand 5 states and 200 transitions.
[2024-11-22 13:39:21,550 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 103 transitions, 379 flow
[2024-11-22 13:39:21,552 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 103 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-11-22 13:39:21,555 INFO  L231             Difference]: Finished difference. Result has 73 places, 71 transitions, 226 flow
[2024-11-22 13:39:21,556 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=226, PETRI_PLACES=73, PETRI_TRANSITIONS=71}
[2024-11-22 13:39:21,559 INFO  L277   CegarLoopForPetriNet]: 66 programPoint places, 7 predicate places.
[2024-11-22 13:39:21,559 INFO  L471      AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 226 flow
[2024-11-22 13:39:21,559 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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)
[2024-11-22 13:39:21,559 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-22 13:39:21,559 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 13:39:21,560 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-22 13:39:21,560 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2024-11-22 13:39:21,560 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 13:39:21,560 INFO  L85        PathProgramCache]: Analyzing trace with hash 310018753, now seen corresponding path program 1 times
[2024-11-22 13:39:21,561 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 13:39:21,561 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364620152]
[2024-11-22 13:39:21,561 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 13:39:21,561 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 13:39:21,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 13:39:21,717 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 13:39:21,717 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 13:39:21,717 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364620152]
[2024-11-22 13:39:21,717 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364620152] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 13:39:21,718 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 13:39:21,718 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 13:39:21,718 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226524696]
[2024-11-22 13:39:21,718 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 13:39:21,719 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 13:39:21,719 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 13:39:21,719 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 13:39:21,720 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-22 13:39:21,720 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 29 out of 75
[2024-11-22 13:39:21,720 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 71 transitions, 226 flow. Second operand  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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)
[2024-11-22 13:39:21,720 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-22 13:39:21,721 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 75
[2024-11-22 13:39:21,721 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-22 13:39:21,859 INFO  L124   PetriNetUnfolderBase]: 198/660 cut-off events.
[2024-11-22 13:39:21,860 INFO  L125   PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES.
[2024-11-22 13:39:21,861 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1381 conditions, 660 events. 198/660 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3532 event pairs, 24 based on Foata normal form. 21/678 useless extension candidates. Maximal degree in co-relation 1367. Up to 317 conditions per place. 
[2024-11-22 13:39:21,864 INFO  L140   encePairwiseOnDemand]: 69/75 looper letters, 62 selfloop transitions, 6 changer transitions 0/96 dead transitions.
[2024-11-22 13:39:21,866 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 96 transitions, 426 flow
[2024-11-22 13:39:21,867 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 13:39:21,867 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-22 13:39:21,868 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 181 transitions.
[2024-11-22 13:39:21,868 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.6033333333333334
[2024-11-22 13:39:21,869 INFO  L175             Difference]: Start difference. First operand has 73 places, 71 transitions, 226 flow. Second operand 4 states and 181 transitions.
[2024-11-22 13:39:21,869 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 96 transitions, 426 flow
[2024-11-22 13:39:21,874 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 96 transitions, 409 flow, removed 4 selfloop flow, removed 1 redundant places.
[2024-11-22 13:39:21,876 INFO  L231             Difference]: Finished difference. Result has 76 places, 72 transitions, 231 flow
[2024-11-22 13:39:21,876 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=231, PETRI_PLACES=76, PETRI_TRANSITIONS=72}
[2024-11-22 13:39:21,878 INFO  L277   CegarLoopForPetriNet]: 66 programPoint places, 10 predicate places.
[2024-11-22 13:39:21,878 INFO  L471      AbstractCegarLoop]: Abstraction has has 76 places, 72 transitions, 231 flow
[2024-11-22 13:39:21,878 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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)
[2024-11-22 13:39:21,878 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-22 13:39:21,879 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 13:39:21,879 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-22 13:39:21,879 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2024-11-22 13:39:21,879 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 13:39:21,879 INFO  L85        PathProgramCache]: Analyzing trace with hash 1055101271, now seen corresponding path program 1 times
[2024-11-22 13:39:21,879 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 13:39:21,880 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949792849]
[2024-11-22 13:39:21,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 13:39:21,880 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 13:39:21,907 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 13:39:22,080 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 13:39:22,081 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 13:39:22,081 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949792849]
[2024-11-22 13:39:22,081 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949792849] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 13:39:22,082 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 13:39:22,082 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 13:39:22,083 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038352232]
[2024-11-22 13:39:22,083 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 13:39:22,083 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 13:39:22,084 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 13:39:22,085 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 13:39:22,085 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-22 13:39:22,094 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 21 out of 75
[2024-11-22 13:39:22,094 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 72 transitions, 231 flow. Second operand  has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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)
[2024-11-22 13:39:22,095 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-22 13:39:22,095 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 75
[2024-11-22 13:39:22,095 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-22 13:39:22,254 INFO  L124   PetriNetUnfolderBase]: 251/704 cut-off events.
[2024-11-22 13:39:22,254 INFO  L125   PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES.
[2024-11-22 13:39:22,256 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1581 conditions, 704 events. 251/704 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3535 event pairs, 160 based on Foata normal form. 36/736 useless extension candidates. Maximal degree in co-relation 1565. Up to 434 conditions per place. 
[2024-11-22 13:39:22,257 INFO  L140   encePairwiseOnDemand]: 62/75 looper letters, 48 selfloop transitions, 13 changer transitions 7/84 dead transitions.
[2024-11-22 13:39:22,258 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 84 transitions, 397 flow
[2024-11-22 13:39:22,258 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 13:39:22,258 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-22 13:39:22,259 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 165 transitions.
[2024-11-22 13:39:22,259 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.44
[2024-11-22 13:39:22,260 INFO  L175             Difference]: Start difference. First operand has 76 places, 72 transitions, 231 flow. Second operand 5 states and 165 transitions.
[2024-11-22 13:39:22,260 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 84 transitions, 397 flow
[2024-11-22 13:39:22,261 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 84 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-22 13:39:22,262 INFO  L231             Difference]: Finished difference. Result has 76 places, 65 transitions, 251 flow
[2024-11-22 13:39:22,262 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=251, PETRI_PLACES=76, PETRI_TRANSITIONS=65}
[2024-11-22 13:39:22,263 INFO  L277   CegarLoopForPetriNet]: 66 programPoint places, 10 predicate places.
[2024-11-22 13:39:22,263 INFO  L471      AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 251 flow
[2024-11-22 13:39:22,263 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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)
[2024-11-22 13:39:22,263 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-22 13:39:22,264 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 13:39:22,264 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-22 13:39:22,264 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2024-11-22 13:39:22,265 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 13:39:22,265 INFO  L85        PathProgramCache]: Analyzing trace with hash -1075351425, now seen corresponding path program 1 times
[2024-11-22 13:39:22,265 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 13:39:22,265 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636336579]
[2024-11-22 13:39:22,265 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 13:39:22,265 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 13:39:22,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 13:39:22,339 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 13:39:22,339 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 13:39:22,339 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636336579]
[2024-11-22 13:39:22,340 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636336579] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 13:39:22,340 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 13:39:22,340 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 13:39:22,340 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423897431]
[2024-11-22 13:39:22,340 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 13:39:22,341 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 13:39:22,341 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 13:39:22,342 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 13:39:22,342 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 13:39:22,350 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 21 out of 75
[2024-11-22 13:39:22,351 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 251 flow. Second operand  has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 13:39:22,351 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-22 13:39:22,351 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 75
[2024-11-22 13:39:22,351 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-22 13:39:22,504 INFO  L124   PetriNetUnfolderBase]: 194/597 cut-off events.
[2024-11-22 13:39:22,505 INFO  L125   PetriNetUnfolderBase]: For 285/285 co-relation queries the response was YES.
[2024-11-22 13:39:22,506 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1434 conditions, 597 events. 194/597 cut-off events. For 285/285 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2876 event pairs, 76 based on Foata normal form. 11/604 useless extension candidates. Maximal degree in co-relation 1416. Up to 281 conditions per place. 
[2024-11-22 13:39:22,508 INFO  L140   encePairwiseOnDemand]: 66/75 looper letters, 57 selfloop transitions, 17 changer transitions 1/91 dead transitions.
[2024-11-22 13:39:22,508 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 91 transitions, 493 flow
[2024-11-22 13:39:22,508 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 13:39:22,508 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-11-22 13:39:22,509 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions.
[2024-11-22 13:39:22,509 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.4666666666666667
[2024-11-22 13:39:22,510 INFO  L175             Difference]: Start difference. First operand has 76 places, 65 transitions, 251 flow. Second operand 5 states and 175 transitions.
[2024-11-22 13:39:22,510 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 91 transitions, 493 flow
[2024-11-22 13:39:22,512 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 91 transitions, 439 flow, removed 3 selfloop flow, removed 5 redundant places.
[2024-11-22 13:39:22,513 INFO  L231             Difference]: Finished difference. Result has 78 places, 71 transitions, 305 flow
[2024-11-22 13:39:22,513 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=305, PETRI_PLACES=78, PETRI_TRANSITIONS=71}
[2024-11-22 13:39:22,514 INFO  L277   CegarLoopForPetriNet]: 66 programPoint places, 12 predicate places.
[2024-11-22 13:39:22,514 INFO  L471      AbstractCegarLoop]: Abstraction has has 78 places, 71 transitions, 305 flow
[2024-11-22 13:39:22,514 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-22 13:39:22,515 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-22 13:39:22,515 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 13:39:22,515 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-22 13:39:22,515 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2024-11-22 13:39:22,516 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 13:39:22,516 INFO  L85        PathProgramCache]: Analyzing trace with hash 607968746, now seen corresponding path program 1 times
[2024-11-22 13:39:22,516 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 13:39:22,516 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31593939]
[2024-11-22 13:39:22,517 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 13:39:22,517 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 13:39:22,532 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 13:39:22,647 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 13:39:22,647 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 13:39:22,648 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31593939]
[2024-11-22 13:39:22,648 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31593939] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 13:39:22,648 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 13:39:22,648 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 13:39:22,648 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522697930]
[2024-11-22 13:39:22,648 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 13:39:22,649 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 13:39:22,649 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 13:39:22,649 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 13:39:22,649 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-22 13:39:22,650 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 29 out of 75
[2024-11-22 13:39:22,650 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 71 transitions, 305 flow. Second operand  has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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)
[2024-11-22 13:39:22,650 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-22 13:39:22,650 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 75
[2024-11-22 13:39:22,650 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-22 13:39:22,741 INFO  L124   PetriNetUnfolderBase]: 89/373 cut-off events.
[2024-11-22 13:39:22,741 INFO  L125   PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES.
[2024-11-22 13:39:22,742 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 967 conditions, 373 events. 89/373 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1601 event pairs, 23 based on Foata normal form. 41/406 useless extension candidates. Maximal degree in co-relation 947. Up to 168 conditions per place. 
[2024-11-22 13:39:22,743 INFO  L140   encePairwiseOnDemand]: 58/75 looper letters, 41 selfloop transitions, 17 changer transitions 3/86 dead transitions.
[2024-11-22 13:39:22,743 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 86 transitions, 489 flow
[2024-11-22 13:39:22,744 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 13:39:22,744 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-22 13:39:22,744 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions.
[2024-11-22 13:39:22,744 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.5866666666666667
[2024-11-22 13:39:22,744 INFO  L175             Difference]: Start difference. First operand has 78 places, 71 transitions, 305 flow. Second operand 4 states and 176 transitions.
[2024-11-22 13:39:22,744 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 86 transitions, 489 flow
[2024-11-22 13:39:22,746 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 86 transitions, 481 flow, removed 1 selfloop flow, removed 1 redundant places.
[2024-11-22 13:39:22,747 INFO  L231             Difference]: Finished difference. Result has 81 places, 73 transitions, 360 flow
[2024-11-22 13:39:22,747 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=81, PETRI_TRANSITIONS=73}
[2024-11-22 13:39:22,748 INFO  L277   CegarLoopForPetriNet]: 66 programPoint places, 15 predicate places.
[2024-11-22 13:39:22,748 INFO  L471      AbstractCegarLoop]: Abstraction has has 81 places, 73 transitions, 360 flow
[2024-11-22 13:39:22,748 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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)
[2024-11-22 13:39:22,748 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-22 13:39:22,749 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 13:39:22,749 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-22 13:39:22,749 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2024-11-22 13:39:22,749 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 13:39:22,749 INFO  L85        PathProgramCache]: Analyzing trace with hash 900113, now seen corresponding path program 1 times
[2024-11-22 13:39:22,750 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 13:39:22,750 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353116312]
[2024-11-22 13:39:22,750 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 13:39:22,750 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 13:39:22,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 13:39:23,001 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 13:39:23,002 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 13:39:23,002 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353116312]
[2024-11-22 13:39:23,002 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353116312] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 13:39:23,002 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 13:39:23,002 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 13:39:23,002 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480265700]
[2024-11-22 13:39:23,002 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 13:39:23,003 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 13:39:23,003 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 13:39:23,003 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 13:39:23,003 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-22 13:39:23,004 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 29 out of 75
[2024-11-22 13:39:23,004 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 73 transitions, 360 flow. Second operand  has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 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)
[2024-11-22 13:39:23,004 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-22 13:39:23,004 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 75
[2024-11-22 13:39:23,004 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-22 13:39:23,082 INFO  L124   PetriNetUnfolderBase]: 85/346 cut-off events.
[2024-11-22 13:39:23,082 INFO  L125   PetriNetUnfolderBase]: For 311/313 co-relation queries the response was YES.
[2024-11-22 13:39:23,082 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 346 events. 85/346 cut-off events. For 311/313 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1457 event pairs, 38 based on Foata normal form. 4/346 useless extension candidates. Maximal degree in co-relation 987. Up to 233 conditions per place. 
[2024-11-22 13:39:23,083 INFO  L140   encePairwiseOnDemand]: 71/75 looper letters, 43 selfloop transitions, 4 changer transitions 14/79 dead transitions.
[2024-11-22 13:39:23,084 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 79 transitions, 497 flow
[2024-11-22 13:39:23,084 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 13:39:23,084 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-22 13:39:23,084 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 163 transitions.
[2024-11-22 13:39:23,085 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.5433333333333333
[2024-11-22 13:39:23,085 INFO  L175             Difference]: Start difference. First operand has 81 places, 73 transitions, 360 flow. Second operand 4 states and 163 transitions.
[2024-11-22 13:39:23,085 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 79 transitions, 497 flow
[2024-11-22 13:39:23,086 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 79 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-11-22 13:39:23,087 INFO  L231             Difference]: Finished difference. Result has 79 places, 56 transitions, 261 flow
[2024-11-22 13:39:23,087 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=261, PETRI_PLACES=79, PETRI_TRANSITIONS=56}
[2024-11-22 13:39:23,088 INFO  L277   CegarLoopForPetriNet]: 66 programPoint places, 13 predicate places.
[2024-11-22 13:39:23,088 INFO  L471      AbstractCegarLoop]: Abstraction has has 79 places, 56 transitions, 261 flow
[2024-11-22 13:39:23,088 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 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)
[2024-11-22 13:39:23,088 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-22 13:39:23,088 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 13:39:23,089 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-22 13:39:23,089 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2024-11-22 13:39:23,089 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 13:39:23,089 INFO  L85        PathProgramCache]: Analyzing trace with hash -1172280328, now seen corresponding path program 1 times
[2024-11-22 13:39:23,089 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 13:39:23,089 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513596966]
[2024-11-22 13:39:23,090 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 13:39:23,090 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 13:39:23,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 13:39:23,256 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 13:39:23,257 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 13:39:23,257 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513596966]
[2024-11-22 13:39:23,257 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513596966] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 13:39:23,257 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 13:39:23,257 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 13:39:23,258 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315262099]
[2024-11-22 13:39:23,258 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 13:39:23,258 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-22 13:39:23,258 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 13:39:23,259 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-22 13:39:23,259 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-22 13:39:23,259 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 29 out of 75
[2024-11-22 13:39:23,259 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 56 transitions, 261 flow. Second operand  has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 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)
[2024-11-22 13:39:23,260 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-22 13:39:23,260 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 75
[2024-11-22 13:39:23,260 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-22 13:39:23,328 INFO  L124   PetriNetUnfolderBase]: 60/244 cut-off events.
[2024-11-22 13:39:23,328 INFO  L125   PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES.
[2024-11-22 13:39:23,329 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 689 conditions, 244 events. 60/244 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 747 event pairs, 20 based on Foata normal form. 13/254 useless extension candidates. Maximal degree in co-relation 667. Up to 105 conditions per place. 
[2024-11-22 13:39:23,330 INFO  L140   encePairwiseOnDemand]: 71/75 looper letters, 38 selfloop transitions, 6 changer transitions 2/63 dead transitions.
[2024-11-22 13:39:23,330 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 63 transitions, 388 flow
[2024-11-22 13:39:23,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 13:39:23,330 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-11-22 13:39:23,331 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions.
[2024-11-22 13:39:23,331 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.5233333333333333
[2024-11-22 13:39:23,331 INFO  L175             Difference]: Start difference. First operand has 79 places, 56 transitions, 261 flow. Second operand 4 states and 157 transitions.
[2024-11-22 13:39:23,331 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 63 transitions, 388 flow
[2024-11-22 13:39:23,332 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 63 transitions, 331 flow, removed 2 selfloop flow, removed 8 redundant places.
[2024-11-22 13:39:23,333 INFO  L231             Difference]: Finished difference. Result has 66 places, 53 transitions, 211 flow
[2024-11-22 13:39:23,333 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=66, PETRI_TRANSITIONS=53}
[2024-11-22 13:39:23,333 INFO  L277   CegarLoopForPetriNet]: 66 programPoint places, 0 predicate places.
[2024-11-22 13:39:23,334 INFO  L471      AbstractCegarLoop]: Abstraction has has 66 places, 53 transitions, 211 flow
[2024-11-22 13:39:23,334 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 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)
[2024-11-22 13:39:23,334 INFO  L196   CegarLoopForPetriNet]: Found error trace
[2024-11-22 13:39:23,334 INFO  L204   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 13:39:23,334 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-22 13:39:23,334 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2024-11-22 13:39:23,335 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 13:39:23,335 INFO  L85        PathProgramCache]: Analyzing trace with hash -1966325509, now seen corresponding path program 1 times
[2024-11-22 13:39:23,335 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 13:39:23,335 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205546717]
[2024-11-22 13:39:23,335 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 13:39:23,335 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 13:39:23,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 13:39:23,452 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 13:39:23,453 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 13:39:23,453 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205546717]
[2024-11-22 13:39:23,453 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205546717] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 13:39:23,453 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 13:39:23,453 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 13:39:23,453 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845996242]
[2024-11-22 13:39:23,454 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 13:39:23,454 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 13:39:23,454 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 13:39:23,454 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 13:39:23,454 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-22 13:39:23,462 INFO  L467   CegarLoopForPetriNet]: Number of universal loopers: 21 out of 75
[2024-11-22 13:39:23,462 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 53 transitions, 211 flow. Second operand  has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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)
[2024-11-22 13:39:23,462 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-22 13:39:23,462 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 75
[2024-11-22 13:39:23,462 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-22 13:39:23,542 INFO  L124   PetriNetUnfolderBase]: 67/240 cut-off events.
[2024-11-22 13:39:23,542 INFO  L125   PetriNetUnfolderBase]: For 180/180 co-relation queries the response was YES.
[2024-11-22 13:39:23,543 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 651 conditions, 240 events. 67/240 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 710 event pairs, 46 based on Foata normal form. 4/240 useless extension candidates. Maximal degree in co-relation 633. Up to 156 conditions per place. 
[2024-11-22 13:39:23,543 INFO  L140   encePairwiseOnDemand]: 66/75 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions.
[2024-11-22 13:39:23,543 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 61 transitions, 349 flow
[2024-11-22 13:39:23,544 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-22 13:39:23,544 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-22 13:39:23,544 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 171 transitions.
[2024-11-22 13:39:23,544 INFO  L512   CegarLoopForPetriNet]: DFA transition density 0.38
[2024-11-22 13:39:23,544 INFO  L175             Difference]: Start difference. First operand has 66 places, 53 transitions, 211 flow. Second operand 6 states and 171 transitions.
[2024-11-22 13:39:23,545 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 61 transitions, 349 flow
[2024-11-22 13:39:23,545 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 61 transitions, 335 flow, removed 1 selfloop flow, removed 3 redundant places.
[2024-11-22 13:39:23,546 INFO  L231             Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow
[2024-11-22 13:39:23,546 INFO  L260   CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0}
[2024-11-22 13:39:23,546 INFO  L277   CegarLoopForPetriNet]: 66 programPoint places, 0 predicate places.
[2024-11-22 13:39:23,547 INFO  L471      AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow
[2024-11-22 13:39:23,547 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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)
[2024-11-22 13:39:23,549 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining)
[2024-11-22 13:39:23,549 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining)
[2024-11-22 13:39:23,550 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining)
[2024-11-22 13:39:23,550 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining)
[2024-11-22 13:39:23,550 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining)
[2024-11-22 13:39:23,550 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-22 13:39:23,550 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 13:39:23,553 INFO  L239   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-11-22 13:39:23,553 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-22 13:39:23,556 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:39:23 BasicIcfg
[2024-11-22 13:39:23,557 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-22 13:39:23,557 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-22 13:39:23,557 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-22 13:39:23,557 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-22 13:39:23,558 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:39:20" (3/4) ...
[2024-11-22 13:39:23,559 INFO  L142         WitnessPrinter]: Generating witness for correct program
[2024-11-22 13:39:23,562 INFO  L361     RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun
[2024-11-22 13:39:23,565 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges
[2024-11-22 13:39:23,565 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2024-11-22 13:39:23,565 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-22 13:39:23,565 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-22 13:39:23,624 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-22 13:39:23,625 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-22 13:39:23,625 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-22 13:39:23,625 INFO  L158              Benchmark]: Toolchain (without parser) took 3911.15ms. Allocated memory was 199.2MB in the beginning and 323.0MB in the end (delta: 123.7MB). Free memory was 126.1MB in the beginning and 222.9MB in the end (delta: -96.8MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB.
[2024-11-22 13:39:23,626 INFO  L158              Benchmark]: CDTParser took 0.14ms. Allocated memory is still 199.2MB. Free memory is still 157.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-22 13:39:23,626 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 370.03ms. Allocated memory is still 199.2MB. Free memory was 126.1MB in the beginning and 103.4MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
[2024-11-22 13:39:23,626 INFO  L158              Benchmark]: Boogie Procedure Inliner took 87.78ms. Allocated memory is still 199.2MB. Free memory was 103.0MB in the beginning and 168.0MB in the end (delta: -65.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB.
[2024-11-22 13:39:23,626 INFO  L158              Benchmark]: Boogie Preprocessor took 90.49ms. Allocated memory is still 199.2MB. Free memory was 168.0MB in the beginning and 165.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-22 13:39:23,626 INFO  L158              Benchmark]: RCFGBuilder took 525.81ms. Allocated memory is still 199.2MB. Free memory was 165.4MB in the beginning and 125.5MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
[2024-11-22 13:39:23,627 INFO  L158              Benchmark]: TraceAbstraction took 2764.03ms. Allocated memory was 199.2MB in the beginning and 323.0MB in the end (delta: 123.7MB). Free memory was 125.5MB in the beginning and 227.1MB in the end (delta: -101.6MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB.
[2024-11-22 13:39:23,627 INFO  L158              Benchmark]: Witness Printer took 67.92ms. Allocated memory is still 323.0MB. Free memory was 227.1MB in the beginning and 222.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-22 13:39:23,629 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.14ms. Allocated memory is still 199.2MB. Free memory is still 157.5MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 370.03ms. Allocated memory is still 199.2MB. Free memory was 126.1MB in the beginning and 103.4MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 87.78ms. Allocated memory is still 199.2MB. Free memory was 103.0MB in the beginning and 168.0MB in the end (delta: -65.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 90.49ms. Allocated memory is still 199.2MB. Free memory was 168.0MB in the beginning and 165.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 525.81ms. Allocated memory is still 199.2MB. Free memory was 165.4MB in the beginning and 125.5MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
 * TraceAbstraction took 2764.03ms. Allocated memory was 199.2MB in the beginning and 323.0MB in the end (delta: 123.7MB). Free memory was 125.5MB in the beginning and 227.1MB in the end (delta: -101.6MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB.
 * Witness Printer took 67.92ms. Allocated memory is still 323.0MB. Free memory was 227.1MB in the beginning and 222.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 19]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - PositiveResult [Line: 19]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - PositiveResult [Line: 19]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - PositiveResult [Line: 19]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 3 procedures, 99 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 332 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 310 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 126 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 815 IncrementalHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 126 mSolverCounterUnsat, 19 mSDtfsCounter, 815 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=360occurred in iteration=5, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 1337 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    4 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-22 13:39:23,651 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE