./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems-b.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for data races
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/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_ebbf1b02-5bda-4386-a325-afe4a469d258/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/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_ebbf1b02-5bda-4386-a325-afe4a469d258/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 ee95c6207d65de8bda179fc4eddfd8312f741d4c9ea2d4ac3b4363fbcaae8d19
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:50:51,962 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:50:52,085 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-11-19 07:50:52,099 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:50:52,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:50:52,141 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:50:52,142 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:50:52,143 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:50:52,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:50:52,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:50:52,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:50:52,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:50:52,152 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:50:52,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:50:52,154 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:50:52,154 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:50:52,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:50:52,155 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:50:52,156 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:50:52,156 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:50:52,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:50:52,157 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:50:52,158 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true
[2023-11-19 07:50:52,158 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:50:52,158 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:50:52,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:50:52,159 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:50:52,160 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:50:52,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:50:52,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:50:52,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:50:52,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:50:52,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:50:52,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:50:52,164 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:50:52,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:50:52,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:50:52,165 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:50:52,165 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:50:52,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:50:52,165 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:50:52,166 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_ebbf1b02-5bda-4386-a325-afe4a469d258/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee95c6207d65de8bda179fc4eddfd8312f741d4c9ea2d4ac3b4363fbcaae8d19
[2023-11-19 07:50:52,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:50:52,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:50:52,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:50:52,510 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:50:52,511 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:50:52,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread/singleton_with-uninit-problems-b.i
[2023-11-19 07:50:55,661 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:50:56,090 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:50:56,094 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/sv-benchmarks/c/pthread/singleton_with-uninit-problems-b.i
[2023-11-19 07:50:56,122 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/bin/uautomizer-verify-uCwYo4JHxu/data/fed4c9d37/a47a9407edd54b2a987a607235d55c3b/FLAG20542c30e
[2023-11-19 07:50:56,144 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/bin/uautomizer-verify-uCwYo4JHxu/data/fed4c9d37/a47a9407edd54b2a987a607235d55c3b
[2023-11-19 07:50:56,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:50:56,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:50:56,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:50:56,155 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:50:56,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:50:56,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:56" (1/1) ...
[2023-11-19 07:50:56,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11053f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:56, skipping insertion in model container
[2023-11-19 07:50:56,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:56" (1/1) ...
[2023-11-19 07:50:56,261 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:50:56,885 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:50:56,894 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:50:56,960 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:50:57,049 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:50:57,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57 WrapperNode
[2023-11-19 07:50:57,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:50:57,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:50:57,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:50:57,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:50:57,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ...
[2023-11-19 07:50:57,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ...
[2023-11-19 07:50:57,120 INFO L138 Inliner]: procedures = 323, calls = 49, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56
[2023-11-19 07:50:57,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:50:57,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:50:57,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:50:57,122 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:50:57,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ...
[2023-11-19 07:50:57,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ...
[2023-11-19 07:50:57,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ...
[2023-11-19 07:50:57,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ...
[2023-11-19 07:50:57,152 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ...
[2023-11-19 07:50:57,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ...
[2023-11-19 07:50:57,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ...
[2023-11-19 07:50:57,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ...
[2023-11-19 07:50:57,163 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:50:57,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:50:57,164 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:50:57,165 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:50:57,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (1/1) ...
[2023-11-19 07:50:57,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:50:57,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:50:57,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:50:57,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbf1b02-5bda-4386-a325-afe4a469d258/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:50:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:50:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:50:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:50:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure thread0
[2023-11-19 07:50:57,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0
[2023-11-19 07:50:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2023-11-19 07:50:57,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2023-11-19 07:50:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2023-11-19 07:50:57,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2023-11-19 07:50:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2023-11-19 07:50:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2023-11-19 07:50:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:50:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-19 07:50:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:50:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:50:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:50:57,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:50:57,265 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 07:50:57,491 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:50:57,493 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:50:57,939 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:50:57,949 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:50:57,949 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:50:57,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:57 BoogieIcfgContainer
[2023-11-19 07:50:57,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:50:57,956 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:50:57,957 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:50:57,960 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:50:57,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:50:56" (1/3) ...
[2023-11-19 07:50:57,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0bb376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:57, skipping insertion in model container
[2023-11-19 07:50:57,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:57" (2/3) ...
[2023-11-19 07:50:57,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b0bb376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:57, skipping insertion in model container
[2023-11-19 07:50:57,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:57" (3/3) ...
[2023-11-19 07:50:57,963 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems-b.i
[2023-11-19 07:50:57,973 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-19 07:50:57,983 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:50:57,983 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations.
[2023-11-19 07:50:57,984 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:50:58,160 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions.
[2023-11-19 07:50:58,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 318 places, 310 transitions, 717 flow
[2023-11-19 07:50:58,304 INFO L124 PetriNetUnfolderBase]: 8/223 cut-off events.
[2023-11-19 07:50:58,305 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2023-11-19 07:50:58,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 223 events. 8/223 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 233 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 194. Up to 3 conditions per place.
[2023-11-19 07:50:58,315 INFO L82 GeneralOperation]: Start removeDead. Operand has 318 places, 310 transitions, 717 flow
[2023-11-19 07:50:58,322 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 197 transitions, 445 flow
[2023-11-19 07:50:58,326 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:50:58,335 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 197 transitions, 445 flow
[2023-11-19 07:50:58,338 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 197 transitions, 445 flow
[2023-11-19 07:50:58,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 197 transitions, 445 flow
[2023-11-19 07:50:58,391 INFO L124 PetriNetUnfolderBase]: 5/197 cut-off events.
[2023-11-19 07:50:58,391 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2023-11-19 07:50:58,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 197 events. 5/197 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 194 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 186. Up to 3 conditions per place.
[2023-11-19 07:50:58,400 INFO L119 LiptonReduction]: Number of co-enabled transitions 7920
[2023-11-19 07:51:02,235 INFO L134 LiptonReduction]: Checked pairs total: 42502
[2023-11-19 07:51:02,236 INFO L136 LiptonReduction]: Total number of compositions: 98
[2023-11-19 07:51:02,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:51:02,278 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;@1a68204, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:51:02,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations.
[2023-11-19 07:51:02,291 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:51:02,291 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events.
[2023-11-19 07:51:02,291 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:51:02,291 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:51:02,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2023-11-19 07:51:02,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] ===
[2023-11-19 07:51:02,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:02,299 INFO L85 PathProgramCache]: Analyzing trace with hash 682511882, now seen corresponding path program 1 times
[2023-11-19 07:51:02,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:02,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083185552]
[2023-11-19 07:51:02,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:02,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:02,570 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 07:51:02,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:02,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083185552]
[2023-11-19 07:51:02,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083185552] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:02,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:02,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:51:02,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702860014]
[2023-11-19 07:51:02,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:02,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:51:02,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:02,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:51:02,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:51:02,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 410
[2023-11-19 07:51:02,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 104 transitions, 259 flow. Second operand has 2 states, 2 states have (on average 280.5) internal successors, (561), 2 states have internal predecessors, (561), 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 07:51:02,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:51:02,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 410
[2023-11-19 07:51:02,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:51:04,410 INFO L124 PetriNetUnfolderBase]: 4535/10049 cut-off events.
[2023-11-19 07:51:04,410 INFO L125 PetriNetUnfolderBase]: For 637/647 co-relation queries the response was YES.
[2023-11-19 07:51:04,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16833 conditions, 10049 events. 4535/10049 cut-off events. For 637/647 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 88902 event pairs, 4363 based on Foata normal form. 1/8829 useless extension candidates. Maximal degree in co-relation 16816. Up to 6086 conditions per place.
[2023-11-19 07:51:04,560 INFO L140 encePairwiseOnDemand]: 405/410 looper letters, 39 selfloop transitions, 0 changer transitions 1/99 dead transitions.
[2023-11-19 07:51:04,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 99 transitions, 329 flow
[2023-11-19 07:51:04,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:51:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-19 07:51:04,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 601 transitions.
[2023-11-19 07:51:04,588 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7329268292682927
[2023-11-19 07:51:04,589 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 601 transitions.
[2023-11-19 07:51:04,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 601 transitions.
[2023-11-19 07:51:04,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:51:04,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 601 transitions.
[2023-11-19 07:51:04,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 300.5) internal successors, (601), 2 states have internal predecessors, (601), 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 07:51:04,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 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 07:51:04,614 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 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 07:51:04,615 INFO L175 Difference]: Start difference. First operand has 118 places, 104 transitions, 259 flow. Second operand 2 states and 601 transitions.
[2023-11-19 07:51:04,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 99 transitions, 329 flow
[2023-11-19 07:51:04,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 99 transitions, 295 flow, removed 0 selfloop flow, removed 12 redundant places.
[2023-11-19 07:51:04,642 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 212 flow
[2023-11-19 07:51:04,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=212, PETRI_PLACES=102, PETRI_TRANSITIONS=98}
[2023-11-19 07:51:04,648 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -16 predicate places.
[2023-11-19 07:51:04,648 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 212 flow
[2023-11-19 07:51:04,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 280.5) internal successors, (561), 2 states have internal predecessors, (561), 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 07:51:04,649 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:51:04,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:04,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:51:04,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] ===
[2023-11-19 07:51:04,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:04,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1053107267, now seen corresponding path program 1 times
[2023-11-19 07:51:04,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:04,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855571063]
[2023-11-19 07:51:04,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:04,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:05,195 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 07:51:05,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:05,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855571063]
[2023-11-19 07:51:05,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855571063] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:05,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:05,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-19 07:51:05,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151949631]
[2023-11-19 07:51:05,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:05,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:51:05,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:05,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:51:05,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:51:05,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 410
[2023-11-19 07:51:05,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 265.3333333333333) internal successors, (1592), 6 states have internal predecessors, (1592), 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 07:51:05,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:51:05,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 410
[2023-11-19 07:51:05,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:51:13,750 INFO L124 PetriNetUnfolderBase]: 47732/76095 cut-off events.
[2023-11-19 07:51:13,750 INFO L125 PetriNetUnfolderBase]: For 1645/1740 co-relation queries the response was YES.
[2023-11-19 07:51:13,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139217 conditions, 76095 events. 47732/76095 cut-off events. For 1645/1740 co-relation queries the response was YES. Maximal size of possible extension queue 2776. Compared 650750 event pairs, 22832 based on Foata normal form. 1/69527 useless extension candidates. Maximal degree in co-relation 139214. Up to 39485 conditions per place.
[2023-11-19 07:51:14,476 INFO L140 encePairwiseOnDemand]: 400/410 looper letters, 170 selfloop transitions, 21 changer transitions 12/254 dead transitions.
[2023-11-19 07:51:14,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 254 transitions, 990 flow
[2023-11-19 07:51:14,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:51:14,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:51:14,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1788 transitions.
[2023-11-19 07:51:14,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7268292682926829
[2023-11-19 07:51:14,483 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1788 transitions.
[2023-11-19 07:51:14,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1788 transitions.
[2023-11-19 07:51:14,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:51:14,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1788 transitions.
[2023-11-19 07:51:14,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 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 07:51:14,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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 07:51:14,507 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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 07:51:14,507 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 212 flow. Second operand 6 states and 1788 transitions.
[2023-11-19 07:51:14,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 254 transitions, 990 flow
[2023-11-19 07:51:14,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 254 transitions, 990 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:51:14,518 INFO L231 Difference]: Finished difference. Result has 111 places, 118 transitions, 354 flow
[2023-11-19 07:51:14,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=354, PETRI_PLACES=111, PETRI_TRANSITIONS=118}
[2023-11-19 07:51:14,520 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -7 predicate places.
[2023-11-19 07:51:14,526 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 118 transitions, 354 flow
[2023-11-19 07:51:14,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 265.3333333333333) internal successors, (1592), 6 states have internal predecessors, (1592), 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 07:51:14,528 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:51:14,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:14,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:51:14,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] ===
[2023-11-19 07:51:14,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:14,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1834300669, now seen corresponding path program 1 times
[2023-11-19 07:51:14,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:14,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433567202]
[2023-11-19 07:51:14,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:14,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:15,056 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 07:51:15,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:15,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433567202]
[2023-11-19 07:51:15,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433567202] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:15,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:15,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-19 07:51:15,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391274618]
[2023-11-19 07:51:15,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:15,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-19 07:51:15,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:15,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-19 07:51:15,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2023-11-19 07:51:15,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 410
[2023-11-19 07:51:15,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 118 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 267.5) internal successors, (1605), 6 states have internal predecessors, (1605), 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 07:51:15,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:51:15,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 410
[2023-11-19 07:51:15,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:51:20,293 INFO L124 PetriNetUnfolderBase]: 25507/43698 cut-off events.
[2023-11-19 07:51:20,293 INFO L125 PetriNetUnfolderBase]: For 18358/20289 co-relation queries the response was YES.
[2023-11-19 07:51:20,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97207 conditions, 43698 events. 25507/43698 cut-off events. For 18358/20289 co-relation queries the response was YES. Maximal size of possible extension queue 1964. Compared 377957 event pairs, 6122 based on Foata normal form. 48/40188 useless extension candidates. Maximal degree in co-relation 97199. Up to 31092 conditions per place.
[2023-11-19 07:51:20,877 INFO L140 encePairwiseOnDemand]: 401/410 looper letters, 78 selfloop transitions, 24 changer transitions 0/158 dead transitions.
[2023-11-19 07:51:20,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 158 transitions, 713 flow
[2023-11-19 07:51:20,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-19 07:51:20,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2023-11-19 07:51:20,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1667 transitions.
[2023-11-19 07:51:20,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6776422764227642
[2023-11-19 07:51:20,884 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1667 transitions.
[2023-11-19 07:51:20,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1667 transitions.
[2023-11-19 07:51:20,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:51:20,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1667 transitions.
[2023-11-19 07:51:20,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 277.8333333333333) internal successors, (1667), 6 states have internal predecessors, (1667), 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 07:51:20,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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 07:51:20,901 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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 07:51:20,901 INFO L175 Difference]: Start difference. First operand has 111 places, 118 transitions, 354 flow. Second operand 6 states and 1667 transitions.
[2023-11-19 07:51:20,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 158 transitions, 713 flow
[2023-11-19 07:51:21,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 158 transitions, 713 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:51:21,131 INFO L231 Difference]: Finished difference. Result has 116 places, 137 transitions, 573 flow
[2023-11-19 07:51:21,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=573, PETRI_PLACES=116, PETRI_TRANSITIONS=137}
[2023-11-19 07:51:21,133 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -2 predicate places.
[2023-11-19 07:51:21,133 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 137 transitions, 573 flow
[2023-11-19 07:51:21,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 267.5) internal successors, (1605), 6 states have internal predecessors, (1605), 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 07:51:21,135 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:51:21,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:21,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-19 07:51:21,139 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] ===
[2023-11-19 07:51:21,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:21,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1494910694, now seen corresponding path program 1 times
[2023-11-19 07:51:21,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:21,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477504670]
[2023-11-19 07:51:21,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:21,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:21,206 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 07:51:21,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:21,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477504670]
[2023-11-19 07:51:21,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477504670] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:21,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:21,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:51:21,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615479387]
[2023-11-19 07:51:21,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:21,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:51:21,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:21,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:51:21,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:51:21,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 410
[2023-11-19 07:51:21,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 137 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 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 07:51:21,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:51:21,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 410
[2023-11-19 07:51:21,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:51:28,327 INFO L124 PetriNetUnfolderBase]: 41896/72088 cut-off events.
[2023-11-19 07:51:28,327 INFO L125 PetriNetUnfolderBase]: For 53669/66340 co-relation queries the response was YES.
[2023-11-19 07:51:28,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165508 conditions, 72088 events. 41896/72088 cut-off events. For 53669/66340 co-relation queries the response was YES. Maximal size of possible extension queue 3808. Compared 666334 event pairs, 20730 based on Foata normal form. 110/65564 useless extension candidates. Maximal degree in co-relation 165498. Up to 50420 conditions per place.
[2023-11-19 07:51:29,220 INFO L140 encePairwiseOnDemand]: 402/410 looper letters, 69 selfloop transitions, 4 changer transitions 0/145 dead transitions.
[2023-11-19 07:51:29,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 145 transitions, 738 flow
[2023-11-19 07:51:29,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:51:29,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:51:29,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 836 transitions.
[2023-11-19 07:51:29,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6796747967479675
[2023-11-19 07:51:29,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 836 transitions.
[2023-11-19 07:51:29,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 836 transitions.
[2023-11-19 07:51:29,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:51:29,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 836 transitions.
[2023-11-19 07:51:29,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 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 07:51:29,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 410.0) internal successors, (1640), 4 states have internal predecessors, (1640), 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 07:51:29,239 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 410.0) internal successors, (1640), 4 states have internal predecessors, (1640), 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 07:51:29,239 INFO L175 Difference]: Start difference. First operand has 116 places, 137 transitions, 573 flow. Second operand 3 states and 836 transitions.
[2023-11-19 07:51:29,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 145 transitions, 738 flow
[2023-11-19 07:51:29,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 145 transitions, 711 flow, removed 0 selfloop flow, removed 4 redundant places.
[2023-11-19 07:51:29,374 INFO L231 Difference]: Finished difference. Result has 111 places, 137 transitions, 566 flow
[2023-11-19 07:51:29,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=566, PETRI_PLACES=111, PETRI_TRANSITIONS=137}
[2023-11-19 07:51:29,376 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -7 predicate places.
[2023-11-19 07:51:29,376 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 137 transitions, 566 flow
[2023-11-19 07:51:29,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 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 07:51:29,377 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:51:29,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:51:29,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 07:51:29,378 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] ===
[2023-11-19 07:51:29,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:51:29,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1781932416, now seen corresponding path program 1 times
[2023-11-19 07:51:29,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:51:29,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680546032]
[2023-11-19 07:51:29,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:51:29,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:51:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:51:29,519 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 07:51:29,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:51:29,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680546032]
[2023-11-19 07:51:29,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680546032] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:51:29,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:51:29,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:51:29,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3163052]
[2023-11-19 07:51:29,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:51:29,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:51:29,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:51:29,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:51:29,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:51:29,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 410
[2023-11-19 07:51:29,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 137 transitions, 566 flow. Second operand has 3 states, 3 states have (on average 231.0) internal successors, (693), 3 states have internal predecessors, (693), 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 07:51:29,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:51:29,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 410
[2023-11-19 07:51:29,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand