./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-1-race.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for data races
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-1-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c0827ac193c1e2b03d5ccf1e60b62c7d6ff1b4feade2c409a6c7ca2cebf9412
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:03:46,295 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:03:46,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-11-19 08:03:46,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:03:46,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:03:46,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:03:46,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:03:46,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:03:46,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 08:03:46,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 08:03:46,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:03:46,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 08:03:46,431 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 08:03:46,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:03:46,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 08:03:46,435 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 08:03:46,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 08:03:46,436 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 08:03:46,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 08:03:46,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 08:03:46,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 08:03:46,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 08:03:46,441 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true
[2023-11-19 08:03:46,441 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 08:03:46,442 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 08:03:46,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 08:03:46,444 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 08:03:46,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:03:46,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 08:03:46,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 08:03:46,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:03:46,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:03:46,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 08:03:46,448 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 08:03:46,449 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 08:03:46,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 08:03:46,450 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 08:03:46,450 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 08:03:46,451 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 08:03:46,451 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 08:03:46,452 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 08:03:46,453 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c0827ac193c1e2b03d5ccf1e60b62c7d6ff1b4feade2c409a6c7ca2cebf9412
[2023-11-19 08:03:46,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:03:46,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:03:46,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:03:46,868 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 08:03:46,869 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 08:03:46,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-ext/26_stack_cas_longest-1-race.i
[2023-11-19 08:03:50,332 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:03:50,712 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 08:03:50,713 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/sv-benchmarks/c/pthread-ext/26_stack_cas_longest-1-race.i
[2023-11-19 08:03:50,731 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/data/4b21ee69c/a05d1c93dc6443bab541ac5b3442af84/FLAGa1b5dfa05
[2023-11-19 08:03:50,751 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/data/4b21ee69c/a05d1c93dc6443bab541ac5b3442af84
[2023-11-19 08:03:50,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:03:50,762 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:03:50,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:03:50,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:03:50,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:03:50,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:50" (1/1) ...
[2023-11-19 08:03:50,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc61bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:50, skipping insertion in model container
[2023-11-19 08:03:50,778 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:50" (1/1) ...
[2023-11-19 08:03:50,851 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:03:51,475 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:03:51,489 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 08:03:51,545 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:03:51,589 INFO L206 MainTranslator]: Completed translation
[2023-11-19 08:03:51,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51 WrapperNode
[2023-11-19 08:03:51,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:03:51,591 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:03:51,591 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:03:51,591 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:03:51,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ...
[2023-11-19 08:03:51,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ...
[2023-11-19 08:03:51,696 INFO L138 Inliner]: procedures = 177, calls = 48, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 322
[2023-11-19 08:03:51,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:03:51,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:03:51,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:03:51,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:03:51,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ...
[2023-11-19 08:03:51,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ...
[2023-11-19 08:03:51,721 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ...
[2023-11-19 08:03:51,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ...
[2023-11-19 08:03:51,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ...
[2023-11-19 08:03:51,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ...
[2023-11-19 08:03:51,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ...
[2023-11-19 08:03:51,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ...
[2023-11-19 08:03:51,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:03:51,767 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:03:51,768 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:03:51,768 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:03:51,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ...
[2023-11-19 08:03:51,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:03:51,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:03:51,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 08:03:51,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9d723a2-73a1-4d91-bd4f-9f8e4696653f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:03:51,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 08:03:51,904 INFO L130 BoogieDeclarations]: Found specification of procedure thr1
[2023-11-19 08:03:51,904 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1
[2023-11-19 08:03:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 08:03:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 08:03:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 08:03:51,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 08:03:51,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 08:03:51,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:03:51,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:03:51,908 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-11-19 08:03:52,125 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 08:03:52,128 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:03:52,894 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 08:03:53,419 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:03:53,419 INFO L302 CfgBuilder]: Removed 3 assume(true) statements.
[2023-11-19 08:03:53,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:53 BoogieIcfgContainer
[2023-11-19 08:03:53,432 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:03:53,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 08:03:53,436 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 08:03:53,439 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 08:03:53,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:50" (1/3) ...
[2023-11-19 08:03:53,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43247713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:53, skipping insertion in model container
[2023-11-19 08:03:53,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (2/3) ...
[2023-11-19 08:03:53,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43247713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:53, skipping insertion in model container
[2023-11-19 08:03:53,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:53" (3/3) ...
[2023-11-19 08:03:53,446 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-1-race.i
[2023-11-19 08:03:53,457 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-19 08:03:53,469 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 08:03:53,469 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations.
[2023-11-19 08:03:53,470 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 08:03:53,636 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-11-19 08:03:53,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 178 places, 186 transitions, 376 flow
[2023-11-19 08:03:53,823 INFO L124 PetriNetUnfolderBase]: 12/197 cut-off events.
[2023-11-19 08:03:53,823 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 08:03:53,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 197 events. 12/197 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 258 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 163. Up to 4 conditions per place.
[2023-11-19 08:03:53,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 178 places, 186 transitions, 376 flow
[2023-11-19 08:03:53,848 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 186 transitions, 376 flow
[2023-11-19 08:03:53,855 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 08:03:53,870 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 178 places, 186 transitions, 376 flow
[2023-11-19 08:03:53,875 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 178 places, 186 transitions, 376 flow
[2023-11-19 08:03:53,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 178 places, 186 transitions, 376 flow
[2023-11-19 08:03:53,955 INFO L124 PetriNetUnfolderBase]: 12/197 cut-off events.
[2023-11-19 08:03:53,955 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 08:03:53,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 197 events. 12/197 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 258 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 163. Up to 4 conditions per place.
[2023-11-19 08:03:53,966 INFO L119 LiptonReduction]: Number of co-enabled transitions 4200
[2023-11-19 08:04:06,334 INFO L134 LiptonReduction]: Checked pairs total: 5229
[2023-11-19 08:04:06,335 INFO L136 LiptonReduction]: Total number of compositions: 204
[2023-11-19 08:04:06,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:04:06,363 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@653e5355, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:04:06,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations.
[2023-11-19 08:04:06,367 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 08:04:06,368 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events.
[2023-11-19 08:04:06,368 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 08:04:06,369 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 08:04:06,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-19 08:04:06,370 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] ===
[2023-11-19 08:04:06,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:04:06,378 INFO L85 PathProgramCache]: Analyzing trace with hash 39914694, now seen corresponding path program 1 times
[2023-11-19 08:04:06,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:04:06,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146966184]
[2023-11-19 08:04:06,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:04:06,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:04:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:04:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:04:06,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:04:06,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146966184]
[2023-11-19 08:04:06,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146966184] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:04:06,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:04:06,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 08:04:06,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932680564]
[2023-11-19 08:04:06,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:04:06,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 08:04:06,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:04:06,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 08:04:06,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 08:04:06,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 390
[2023-11-19 08:04:06,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 53 transitions, 110 flow. Second operand has 2 states, 2 states have (on average 158.0) internal successors, (316), 2 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:06,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 08:04:06,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 390
[2023-11-19 08:04:06,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 08:04:06,916 INFO L124 PetriNetUnfolderBase]: 43/93 cut-off events.
[2023-11-19 08:04:06,917 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 08:04:06,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 93 events. 43/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 198 event pairs, 28 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 174. Up to 91 conditions per place.
[2023-11-19 08:04:06,921 INFO L140 encePairwiseOnDemand]: 361/390 looper letters, 23 selfloop transitions, 0 changer transitions 0/24 dead transitions.
[2023-11-19 08:04:06,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 24 transitions, 98 flow
[2023-11-19 08:04:06,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 08:04:06,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-19 08:04:06,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 364 transitions.
[2023-11-19 08:04:06,955 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667
[2023-11-19 08:04:06,956 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 364 transitions.
[2023-11-19 08:04:06,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 364 transitions.
[2023-11-19 08:04:06,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 08:04:06,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 364 transitions.
[2023-11-19 08:04:06,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 182.0) internal successors, (364), 2 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:06,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:06,985 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:06,988 INFO L175 Difference]: Start difference. First operand has 49 places, 53 transitions, 110 flow. Second operand 2 states and 364 transitions.
[2023-11-19 08:04:06,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 24 transitions, 98 flow
[2023-11-19 08:04:06,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 98 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 08:04:06,995 INFO L231 Difference]: Finished difference. Result has 23 places, 24 transitions, 52 flow
[2023-11-19 08:04:06,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=52, PETRI_PLACES=23, PETRI_TRANSITIONS=24}
[2023-11-19 08:04:07,006 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -26 predicate places.
[2023-11-19 08:04:07,007 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 24 transitions, 52 flow
[2023-11-19 08:04:07,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 158.0) internal successors, (316), 2 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:07,008 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 08:04:07,009 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-11-19 08:04:07,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 08:04:07,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] ===
[2023-11-19 08:04:07,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:04:07,024 INFO L85 PathProgramCache]: Analyzing trace with hash -296583069, now seen corresponding path program 1 times
[2023-11-19 08:04:07,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:04:07,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690401691]
[2023-11-19 08:04:07,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:04:07,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:04:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:04:07,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:04:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:04:07,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:04:07,150 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 08:04:07,153 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining)
[2023-11-19 08:04:07,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining)
[2023-11-19 08:04:07,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining)
[2023-11-19 08:04:07,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining)
[2023-11-19 08:04:07,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining)
[2023-11-19 08:04:07,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining)
[2023-11-19 08:04:07,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining)
[2023-11-19 08:04:07,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining)
[2023-11-19 08:04:07,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining)
[2023-11-19 08:04:07,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining)
[2023-11-19 08:04:07,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining)
[2023-11-19 08:04:07,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining)
[2023-11-19 08:04:07,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining)
[2023-11-19 08:04:07,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining)
[2023-11-19 08:04:07,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining)
[2023-11-19 08:04:07,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining)
[2023-11-19 08:04:07,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining)
[2023-11-19 08:04:07,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining)
[2023-11-19 08:04:07,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining)
[2023-11-19 08:04:07,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining)
[2023-11-19 08:04:07,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining)
[2023-11-19 08:04:07,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining)
[2023-11-19 08:04:07,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining)
[2023-11-19 08:04:07,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining)
[2023-11-19 08:04:07,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining)
[2023-11-19 08:04:07,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining)
[2023-11-19 08:04:07,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining)
[2023-11-19 08:04:07,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining)
[2023-11-19 08:04:07,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining)
[2023-11-19 08:04:07,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining)
[2023-11-19 08:04:07,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining)
[2023-11-19 08:04:07,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining)
[2023-11-19 08:04:07,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining)
[2023-11-19 08:04:07,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining)
[2023-11-19 08:04:07,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining)
[2023-11-19 08:04:07,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining)
[2023-11-19 08:04:07,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining)
[2023-11-19 08:04:07,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining)
[2023-11-19 08:04:07,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining)
[2023-11-19 08:04:07,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining)
[2023-11-19 08:04:07,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining)
[2023-11-19 08:04:07,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining)
[2023-11-19 08:04:07,202 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining)
[2023-11-19 08:04:07,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining)
[2023-11-19 08:04:07,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining)
[2023-11-19 08:04:07,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining)
[2023-11-19 08:04:07,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining)
[2023-11-19 08:04:07,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining)
[2023-11-19 08:04:07,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining)
[2023-11-19 08:04:07,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining)
[2023-11-19 08:04:07,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining)
[2023-11-19 08:04:07,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining)
[2023-11-19 08:04:07,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining)
[2023-11-19 08:04:07,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 08:04:07,214 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-11-19 08:04:07,218 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-19 08:04:07,219 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-11-19 08:04:07,403 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-11-19 08:04:07,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 321 places, 337 transitions, 684 flow
[2023-11-19 08:04:07,552 INFO L124 PetriNetUnfolderBase]: 23/361 cut-off events.
[2023-11-19 08:04:07,552 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 08:04:07,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 361 events. 23/361 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1005 event pairs, 0 based on Foata normal form. 0/283 useless extension candidates. Maximal degree in co-relation 313. Up to 6 conditions per place.
[2023-11-19 08:04:07,562 INFO L82 GeneralOperation]: Start removeDead. Operand has 321 places, 337 transitions, 684 flow
[2023-11-19 08:04:07,574 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 321 places, 337 transitions, 684 flow
[2023-11-19 08:04:07,574 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 08:04:07,574 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 321 places, 337 transitions, 684 flow
[2023-11-19 08:04:07,576 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 321 places, 337 transitions, 684 flow
[2023-11-19 08:04:07,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 321 places, 337 transitions, 684 flow
[2023-11-19 08:04:07,761 INFO L124 PetriNetUnfolderBase]: 23/361 cut-off events.
[2023-11-19 08:04:07,762 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2023-11-19 08:04:07,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 361 events. 23/361 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1005 event pairs, 0 based on Foata normal form. 0/283 useless extension candidates. Maximal degree in co-relation 313. Up to 6 conditions per place.
[2023-11-19 08:04:07,815 INFO L119 LiptonReduction]: Number of co-enabled transitions 53700
[2023-11-19 08:04:15,875 INFO L134 LiptonReduction]: Checked pairs total: 200253
[2023-11-19 08:04:15,876 INFO L136 LiptonReduction]: Total number of compositions: 203
[2023-11-19 08:04:15,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:04:15,884 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@653e5355, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:04:15,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations.
[2023-11-19 08:04:15,888 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 08:04:15,888 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events.
[2023-11-19 08:04:15,888 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 08:04:15,888 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 08:04:15,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-19 08:04:15,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] ===
[2023-11-19 08:04:15,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:04:15,890 INFO L85 PathProgramCache]: Analyzing trace with hash 61282618, now seen corresponding path program 1 times
[2023-11-19 08:04:15,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:04:15,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624954948]
[2023-11-19 08:04:15,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:04:15,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:04:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:04:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:04:15,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:04:15,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624954948]
[2023-11-19 08:04:15,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624954948] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:04:15,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:04:15,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 08:04:15,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906918991]
[2023-11-19 08:04:15,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:04:15,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 08:04:15,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:04:15,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 08:04:15,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 08:04:15,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 540
[2023-11-19 08:04:16,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 179 transitions, 368 flow. Second operand has 2 states, 2 states have (on average 281.0) internal successors, (562), 2 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:16,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 08:04:16,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 540
[2023-11-19 08:04:16,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 08:04:17,452 INFO L124 PetriNetUnfolderBase]: 2334/5846 cut-off events.
[2023-11-19 08:04:17,452 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES.
[2023-11-19 08:04:17,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9563 conditions, 5846 events. 2334/5846 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 49649 event pairs, 1824 based on Foata normal form. 0/5129 useless extension candidates. Maximal degree in co-relation 6600. Up to 3637 conditions per place.
[2023-11-19 08:04:17,526 INFO L140 encePairwiseOnDemand]: 505/540 looper letters, 62 selfloop transitions, 0 changer transitions 0/144 dead transitions.
[2023-11-19 08:04:17,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 144 transitions, 422 flow
[2023-11-19 08:04:17,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 08:04:17,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-19 08:04:17,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 655 transitions.
[2023-11-19 08:04:17,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6064814814814815
[2023-11-19 08:04:17,533 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 655 transitions.
[2023-11-19 08:04:17,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 655 transitions.
[2023-11-19 08:04:17,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 08:04:17,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 655 transitions.
[2023-11-19 08:04:17,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 327.5) internal successors, (655), 2 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:17,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 540.0) internal successors, (1620), 3 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:17,548 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 540.0) internal successors, (1620), 3 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:17,549 INFO L175 Difference]: Start difference. First operand has 170 places, 179 transitions, 368 flow. Second operand 2 states and 655 transitions.
[2023-11-19 08:04:17,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 144 transitions, 422 flow
[2023-11-19 08:04:17,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 144 transitions, 422 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 08:04:17,560 INFO L231 Difference]: Finished difference. Result has 140 places, 144 transitions, 298 flow
[2023-11-19 08:04:17,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=298, PETRI_PLACES=140, PETRI_TRANSITIONS=144}
[2023-11-19 08:04:17,562 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -30 predicate places.
[2023-11-19 08:04:17,562 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 144 transitions, 298 flow
[2023-11-19 08:04:17,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 281.0) internal successors, (562), 2 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:17,564 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 08:04:17,564 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-11-19 08:04:17,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-19 08:04:17,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] ===
[2023-11-19 08:04:17,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:04:17,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1236893732, now seen corresponding path program 1 times
[2023-11-19 08:04:17,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:04:17,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006936116]
[2023-11-19 08:04:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:04:17,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:04:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:04:17,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:04:17,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:04:17,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006936116]
[2023-11-19 08:04:17,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006936116] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:04:17,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:04:17,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 08:04:17,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078655140]
[2023-11-19 08:04:17,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:04:17,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 08:04:17,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:04:17,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 08:04:17,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 08:04:17,759 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 540
[2023-11-19 08:04:17,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 144 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:17,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 08:04:17,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 540
[2023-11-19 08:04:17,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 08:04:20,487 INFO L124 PetriNetUnfolderBase]: 5384/13246 cut-off events.
[2023-11-19 08:04:20,493 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES.
[2023-11-19 08:04:20,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21815 conditions, 13246 events. 5384/13246 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 127115 event pairs, 2069 based on Foata normal form. 0/11598 useless extension candidates. Maximal degree in co-relation 21810. Up to 4333 conditions per place.
[2023-11-19 08:04:20,647 INFO L140 encePairwiseOnDemand]: 532/540 looper letters, 128 selfloop transitions, 6 changer transitions 0/209 dead transitions.
[2023-11-19 08:04:20,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 209 transitions, 701 flow
[2023-11-19 08:04:20,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 08:04:20,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 08:04:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 949 transitions.
[2023-11-19 08:04:20,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5858024691358025
[2023-11-19 08:04:20,653 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 949 transitions.
[2023-11-19 08:04:20,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 949 transitions.
[2023-11-19 08:04:20,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 08:04:20,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 949 transitions.
[2023-11-19 08:04:20,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:20,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:20,673 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 540.0) internal successors, (2160), 4 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:20,673 INFO L175 Difference]: Start difference. First operand has 140 places, 144 transitions, 298 flow. Second operand 3 states and 949 transitions.
[2023-11-19 08:04:20,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 209 transitions, 701 flow
[2023-11-19 08:04:20,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 209 transitions, 701 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 08:04:20,687 INFO L231 Difference]: Finished difference. Result has 144 places, 150 transitions, 350 flow
[2023-11-19 08:04:20,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=540, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=144, PETRI_TRANSITIONS=150}
[2023-11-19 08:04:20,691 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -26 predicate places.
[2023-11-19 08:04:20,692 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 150 transitions, 350 flow
[2023-11-19 08:04:20,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:20,694 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 08:04:20,694 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-11-19 08:04:20,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 08:04:20,694 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] ===
[2023-11-19 08:04:20,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:04:20,696 INFO L85 PathProgramCache]: Analyzing trace with hash 227711637, now seen corresponding path program 1 times
[2023-11-19 08:04:20,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:04:20,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762561679]
[2023-11-19 08:04:20,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:04:20,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:04:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:04:20,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:04:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:04:20,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:04:20,767 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 08:04:20,768 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (78 of 79 remaining)
[2023-11-19 08:04:20,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining)
[2023-11-19 08:04:20,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining)
[2023-11-19 08:04:20,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining)
[2023-11-19 08:04:20,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining)
[2023-11-19 08:04:20,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining)
[2023-11-19 08:04:20,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining)
[2023-11-19 08:04:20,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining)
[2023-11-19 08:04:20,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining)
[2023-11-19 08:04:20,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining)
[2023-11-19 08:04:20,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining)
[2023-11-19 08:04:20,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining)
[2023-11-19 08:04:20,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining)
[2023-11-19 08:04:20,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining)
[2023-11-19 08:04:20,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining)
[2023-11-19 08:04:20,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining)
[2023-11-19 08:04:20,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining)
[2023-11-19 08:04:20,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining)
[2023-11-19 08:04:20,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining)
[2023-11-19 08:04:20,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining)
[2023-11-19 08:04:20,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining)
[2023-11-19 08:04:20,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining)
[2023-11-19 08:04:20,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining)
[2023-11-19 08:04:20,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining)
[2023-11-19 08:04:20,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining)
[2023-11-19 08:04:20,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining)
[2023-11-19 08:04:20,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining)
[2023-11-19 08:04:20,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining)
[2023-11-19 08:04:20,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining)
[2023-11-19 08:04:20,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining)
[2023-11-19 08:04:20,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining)
[2023-11-19 08:04:20,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining)
[2023-11-19 08:04:20,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining)
[2023-11-19 08:04:20,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining)
[2023-11-19 08:04:20,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining)
[2023-11-19 08:04:20,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining)
[2023-11-19 08:04:20,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining)
[2023-11-19 08:04:20,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining)
[2023-11-19 08:04:20,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining)
[2023-11-19 08:04:20,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining)
[2023-11-19 08:04:20,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining)
[2023-11-19 08:04:20,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining)
[2023-11-19 08:04:20,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining)
[2023-11-19 08:04:20,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining)
[2023-11-19 08:04:20,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining)
[2023-11-19 08:04:20,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining)
[2023-11-19 08:04:20,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining)
[2023-11-19 08:04:20,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 79 remaining)
[2023-11-19 08:04:20,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 79 remaining)
[2023-11-19 08:04:20,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 79 remaining)
[2023-11-19 08:04:20,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining)
[2023-11-19 08:04:20,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining)
[2023-11-19 08:04:20,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining)
[2023-11-19 08:04:20,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining)
[2023-11-19 08:04:20,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining)
[2023-11-19 08:04:20,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining)
[2023-11-19 08:04:20,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining)
[2023-11-19 08:04:20,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining)
[2023-11-19 08:04:20,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining)
[2023-11-19 08:04:20,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining)
[2023-11-19 08:04:20,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining)
[2023-11-19 08:04:20,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining)
[2023-11-19 08:04:20,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining)
[2023-11-19 08:04:20,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining)
[2023-11-19 08:04:20,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining)
[2023-11-19 08:04:20,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining)
[2023-11-19 08:04:20,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining)
[2023-11-19 08:04:20,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining)
[2023-11-19 08:04:20,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining)
[2023-11-19 08:04:20,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining)
[2023-11-19 08:04:20,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining)
[2023-11-19 08:04:20,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining)
[2023-11-19 08:04:20,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining)
[2023-11-19 08:04:20,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining)
[2023-11-19 08:04:20,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining)
[2023-11-19 08:04:20,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining)
[2023-11-19 08:04:20,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining)
[2023-11-19 08:04:20,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining)
[2023-11-19 08:04:20,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining)
[2023-11-19 08:04:20,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-19 08:04:20,790 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-11-19 08:04:20,791 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-19 08:04:20,791 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-11-19 08:04:20,989 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-11-19 08:04:20,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 464 places, 488 transitions, 994 flow
[2023-11-19 08:04:21,187 INFO L124 PetriNetUnfolderBase]: 34/525 cut-off events.
[2023-11-19 08:04:21,187 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES.
[2023-11-19 08:04:21,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 525 events. 34/525 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1959 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 463. Up to 8 conditions per place.
[2023-11-19 08:04:21,203 INFO L82 GeneralOperation]: Start removeDead. Operand has 464 places, 488 transitions, 994 flow
[2023-11-19 08:04:21,215 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 464 places, 488 transitions, 994 flow
[2023-11-19 08:04:21,216 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 08:04:21,216 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 464 places, 488 transitions, 994 flow
[2023-11-19 08:04:21,216 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 464 places, 488 transitions, 994 flow
[2023-11-19 08:04:21,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 464 places, 488 transitions, 994 flow
[2023-11-19 08:04:21,391 INFO L124 PetriNetUnfolderBase]: 34/525 cut-off events.
[2023-11-19 08:04:21,391 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES.
[2023-11-19 08:04:21,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 525 events. 34/525 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1959 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 463. Up to 8 conditions per place.
[2023-11-19 08:04:21,459 INFO L119 LiptonReduction]: Number of co-enabled transitions 148500
[2023-11-19 08:04:33,584 INFO L134 LiptonReduction]: Checked pairs total: 571540
[2023-11-19 08:04:33,584 INFO L136 LiptonReduction]: Total number of compositions: 304
[2023-11-19 08:04:33,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:04:33,588 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@653e5355, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:04:33,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations.
[2023-11-19 08:04:33,591 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 08:04:33,591 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events.
[2023-11-19 08:04:33,591 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 08:04:33,592 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 08:04:33,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-19 08:04:33,592 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 101 more)] ===
[2023-11-19 08:04:33,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:04:33,593 INFO L85 PathProgramCache]: Analyzing trace with hash 90271271, now seen corresponding path program 1 times
[2023-11-19 08:04:33,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:04:33,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621521788]
[2023-11-19 08:04:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:04:33,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:04:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:04:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:04:33,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:04:33,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621521788]
[2023-11-19 08:04:33,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621521788] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:04:33,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:04:33,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 08:04:33,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161516886]
[2023-11-19 08:04:33,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:04:33,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 08:04:33,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:04:33,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 08:04:33,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 08:04:33,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 792
[2023-11-19 08:04:33,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 266 transitions, 550 flow. Second operand has 2 states, 2 states have (on average 404.0) internal successors, (808), 2 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 08:04:33,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 08:04:33,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 792
[2023-11-19 08:04:33,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand