./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for data races
Using default analysis
Version a0165632
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_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX --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 bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 18:42:32,147 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:42:32,247 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2024-11-08 18:42:32,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:42:32,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:42:32,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:42:32,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:42:32,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:42:32,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:42:32,313 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:42:32,313 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:42:32,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 18:42:32,314 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 18:42:32,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:42:32,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 18:42:32,315 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 18:42:32,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 18:42:32,315 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 18:42:32,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 18:42:32,320 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 18:42:32,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:42:32,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 18:42:32,321 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true
[2024-11-08 18:42:32,321 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 18:42:32,321 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 18:42:32,321 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 18:42:32,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 18:42:32,322 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 18:42:32,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:42:32,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 18:42:32,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 18:42:32,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:42:32,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:42:32,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:42:32,323 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 18:42:32,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 18:42:32,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 18:42:32,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:42:32,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:42:32,326 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:42:32,326 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:42:32,327 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_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2
[2024-11-08 18:42:32,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:42:32,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:42:32,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:42:32,783 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 18:42:32,784 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 18:42:32,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i
Unable to find full path for "g++"
[2024-11-08 18:42:34,779 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:42:35,105 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 18:42:35,106 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i
[2024-11-08 18:42:35,128 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/data/465bae79d/62c6808bc7da4713b2c84880efc4ed70/FLAG61d405943
[2024-11-08 18:42:35,163 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/data/465bae79d/62c6808bc7da4713b2c84880efc4ed70
[2024-11-08 18:42:35,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:42:35,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:42:35,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:42:35,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:42:35,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:42:35,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b855673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35, skipping insertion in model container
[2024-11-08 18:42:35,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,236 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:42:35,696 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:42:35,711 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 18:42:35,782 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:42:35,833 INFO L204 MainTranslator]: Completed translation
[2024-11-08 18:42:35,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35 WrapperNode
[2024-11-08 18:42:35,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:42:35,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:42:35,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:42:35,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:42:35,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,895 INFO L138 Inliner]: procedures = 169, calls = 16, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 175
[2024-11-08 18:42:35,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:42:35,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:42:35,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:42:35,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:42:35,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:42:35,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:42:35,937 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:42:35,938 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:42:35,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35" (1/1) ...
[2024-11-08 18:42:35,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:42:35,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:42:35,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 18:42:35,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a95eba7-3aa4-4cba-85ab-c1d98dbfb3a6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:42:36,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2024-11-08 18:42:36,049 INFO L130 BoogieDeclarations]: Found specification of procedure thr1
[2024-11-08 18:42:36,049 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1
[2024-11-08 18:42:36,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2024-11-08 18:42:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:42:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-08 18:42:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 18:42:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2024-11-08 18:42:36,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:42:36,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:42:36,052 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-08 18:42:36,278 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 18:42:36,280 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:42:36,686 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-08 18:42:36,686 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 18:42:36,920 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:42:36,921 INFO L316 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-08 18:42:36,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:42:36 BoogieIcfgContainer
[2024-11-08 18:42:36,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:42:36,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:42:36,926 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:42:36,929 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:42:36,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:42:35" (1/3) ...
[2024-11-08 18:42:36,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f9b1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:42:36, skipping insertion in model container
[2024-11-08 18:42:36,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:35" (2/3) ...
[2024-11-08 18:42:36,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f9b1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:42:36, skipping insertion in model container
[2024-11-08 18:42:36,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:42:36" (3/3) ...
[2024-11-08 18:42:36,932 INFO L112 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs-b.i
[2024-11-08 18:42:36,949 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:42:36,949 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations.
[2024-11-08 18:42:36,949 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-08 18:42:37,020 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-08 18:42:37,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 156 transitions, 316 flow
[2024-11-08 18:42:37,163 INFO L124 PetriNetUnfolderBase]: 14/237 cut-off events.
[2024-11-08 18:42:37,163 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-08 18:42:37,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 237 events. 14/237 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 806 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 142. Up to 4 conditions per place.
[2024-11-08 18:42:37,173 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 156 transitions, 316 flow
[2024-11-08 18:42:37,179 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 156 transitions, 316 flow
[2024-11-08 18:42:37,192 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:42:37,200 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@462ad444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:42:37,200 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations.
[2024-11-08 18:42:37,208 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 18:42:37,208 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events.
[2024-11-08 18:42:37,208 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-08 18:42:37,208 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:42:37,209 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:42:37,210 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] ===
[2024-11-08 18:42:37,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:42:37,215 INFO L85 PathProgramCache]: Analyzing trace with hash -10118094, now seen corresponding path program 1 times
[2024-11-08 18:42:37,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:42:37,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327633163]
[2024-11-08 18:42:37,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:42:37,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:42:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:42:37,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:42:37,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:42:37,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327633163]
[2024-11-08 18:42:37,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327633163] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:42:37,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:42:37,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:42:37,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100339055]
[2024-11-08 18:42:37,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:42:37,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 18:42:37,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:42:37,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 18:42:37,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 18:42:37,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 156
[2024-11-08 18:42:37,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 156 transitions, 316 flow. Second operand has 2 states, 2 states have (on average 135.0) internal successors, (270), 2 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:37,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:42:37,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 156
[2024-11-08 18:42:37,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:42:37,611 INFO L124 PetriNetUnfolderBase]: 5/255 cut-off events.
[2024-11-08 18:42:37,611 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2024-11-08 18:42:37,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 255 events. 5/255 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 780 event pairs, 1 based on Foata normal form. 16/232 useless extension candidates. Maximal degree in co-relation 175. Up to 7 conditions per place.
[2024-11-08 18:42:37,622 INFO L140 encePairwiseOnDemand]: 139/156 looper letters, 3 selfloop transitions, 0 changer transitions 0/135 dead transitions.
[2024-11-08 18:42:37,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 135 transitions, 280 flow
[2024-11-08 18:42:37,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 18:42:37,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2024-11-08 18:42:37,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 288 transitions.
[2024-11-08 18:42:37,680 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231
[2024-11-08 18:42:37,682 INFO L175 Difference]: Start difference. First operand has 150 places, 156 transitions, 316 flow. Second operand 2 states and 288 transitions.
[2024-11-08 18:42:37,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 135 transitions, 280 flow
[2024-11-08 18:42:37,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 135 transitions, 280 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 18:42:37,697 INFO L231 Difference]: Finished difference. Result has 137 places, 135 transitions, 274 flow
[2024-11-08 18:42:37,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=274, PETRI_PLACES=137, PETRI_TRANSITIONS=135}
[2024-11-08 18:42:37,706 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, -13 predicate places.
[2024-11-08 18:42:37,707 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 135 transitions, 274 flow
[2024-11-08 18:42:37,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 135.0) internal successors, (270), 2 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:37,708 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:42:37,708 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:42:37,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 18:42:37,709 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] ===
[2024-11-08 18:42:37,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:42:37,709 INFO L85 PathProgramCache]: Analyzing trace with hash 556062214, now seen corresponding path program 1 times
[2024-11-08 18:42:37,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:42:37,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008613906]
[2024-11-08 18:42:37,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:42:37,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:42:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:42:37,748 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:42:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:42:37,803 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:42:37,803 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 18:42:37,805 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining)
[2024-11-08 18:42:37,806 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining)
[2024-11-08 18:42:37,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining)
[2024-11-08 18:42:37,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining)
[2024-11-08 18:42:37,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining)
[2024-11-08 18:42:37,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining)
[2024-11-08 18:42:37,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining)
[2024-11-08 18:42:37,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining)
[2024-11-08 18:42:37,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining)
[2024-11-08 18:42:37,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining)
[2024-11-08 18:42:37,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining)
[2024-11-08 18:42:37,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining)
[2024-11-08 18:42:37,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining)
[2024-11-08 18:42:37,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining)
[2024-11-08 18:42:37,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining)
[2024-11-08 18:42:37,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining)
[2024-11-08 18:42:37,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining)
[2024-11-08 18:42:37,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining)
[2024-11-08 18:42:37,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining)
[2024-11-08 18:42:37,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining)
[2024-11-08 18:42:37,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining)
[2024-11-08 18:42:37,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining)
[2024-11-08 18:42:37,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining)
[2024-11-08 18:42:37,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining)
[2024-11-08 18:42:37,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining)
[2024-11-08 18:42:37,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining)
[2024-11-08 18:42:37,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining)
[2024-11-08 18:42:37,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining)
[2024-11-08 18:42:37,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining)
[2024-11-08 18:42:37,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining)
[2024-11-08 18:42:37,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining)
[2024-11-08 18:42:37,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining)
[2024-11-08 18:42:37,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining)
[2024-11-08 18:42:37,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining)
[2024-11-08 18:42:37,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining)
[2024-11-08 18:42:37,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining)
[2024-11-08 18:42:37,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining)
[2024-11-08 18:42:37,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 18:42:37,815 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1]
[2024-11-08 18:42:37,819 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-08 18:42:37,819 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2024-11-08 18:42:37,898 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-08 18:42:37,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 218 transitions, 446 flow
[2024-11-08 18:42:37,987 INFO L124 PetriNetUnfolderBase]: 23/380 cut-off events.
[2024-11-08 18:42:37,987 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES.
[2024-11-08 18:42:37,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 380 events. 23/380 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1692 event pairs, 0 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 238. Up to 6 conditions per place.
[2024-11-08 18:42:37,995 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 218 transitions, 446 flow
[2024-11-08 18:42:38,000 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 218 transitions, 446 flow
[2024-11-08 18:42:38,003 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:42:38,004 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@462ad444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:42:38,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations.
[2024-11-08 18:42:38,010 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 18:42:38,010 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events.
[2024-11-08 18:42:38,011 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-08 18:42:38,011 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:42:38,012 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:42:38,012 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] ===
[2024-11-08 18:42:38,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:42:38,016 INFO L85 PathProgramCache]: Analyzing trace with hash -403927092, now seen corresponding path program 1 times
[2024-11-08 18:42:38,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:42:38,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909028753]
[2024-11-08 18:42:38,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:42:38,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:42:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:42:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:42:38,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:42:38,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909028753]
[2024-11-08 18:42:38,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909028753] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:42:38,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:42:38,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:42:38,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714059969]
[2024-11-08 18:42:38,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:42:38,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 18:42:38,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:42:38,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 18:42:38,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 18:42:38,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 218
[2024-11-08 18:42:38,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 218 transitions, 446 flow. Second operand has 2 states, 2 states have (on average 186.0) internal successors, (372), 2 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:38,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:42:38,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 218
[2024-11-08 18:42:38,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:42:38,231 INFO L124 PetriNetUnfolderBase]: 18/628 cut-off events.
[2024-11-08 18:42:38,231 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2024-11-08 18:42:38,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 628 events. 18/628 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3571 event pairs, 7 based on Foata normal form. 46/567 useless extension candidates. Maximal degree in co-relation 385. Up to 21 conditions per place.
[2024-11-08 18:42:38,240 INFO L140 encePairwiseOnDemand]: 193/218 looper letters, 5 selfloop transitions, 0 changer transitions 0/187 dead transitions.
[2024-11-08 18:42:38,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 187 transitions, 394 flow
[2024-11-08 18:42:38,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 18:42:38,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2024-11-08 18:42:38,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 400 transitions.
[2024-11-08 18:42:38,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9174311926605505
[2024-11-08 18:42:38,249 INFO L175 Difference]: Start difference. First operand has 210 places, 218 transitions, 446 flow. Second operand 2 states and 400 transitions.
[2024-11-08 18:42:38,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 187 transitions, 394 flow
[2024-11-08 18:42:38,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 187 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 18:42:38,256 INFO L231 Difference]: Finished difference. Result has 190 places, 187 transitions, 384 flow
[2024-11-08 18:42:38,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=384, PETRI_PLACES=190, PETRI_TRANSITIONS=187}
[2024-11-08 18:42:38,259 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -20 predicate places.
[2024-11-08 18:42:38,259 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 187 transitions, 384 flow
[2024-11-08 18:42:38,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 186.0) internal successors, (372), 2 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:38,260 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:42:38,260 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:42:38,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 18:42:38,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] ===
[2024-11-08 18:42:38,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:42:38,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1933889918, now seen corresponding path program 1 times
[2024-11-08 18:42:38,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:42:38,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238116782]
[2024-11-08 18:42:38,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:42:38,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:42:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:42:38,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:42:38,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:42:38,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238116782]
[2024-11-08 18:42:38,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238116782] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:42:38,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:42:38,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 18:42:38,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743477711]
[2024-11-08 18:42:38,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:42:38,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:42:38,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:42:38,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:42:38,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:42:39,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218
[2024-11-08 18:42:39,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 187 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:39,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:42:39,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218
[2024-11-08 18:42:39,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:42:39,818 INFO L124 PetriNetUnfolderBase]: 134/2680 cut-off events.
[2024-11-08 18:42:39,818 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES.
[2024-11-08 18:42:39,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2904 conditions, 2680 events. 134/2680 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24274 event pairs, 33 based on Foata normal form. 0/2214 useless extension candidates. Maximal degree in co-relation 2899. Up to 141 conditions per place.
[2024-11-08 18:42:39,847 INFO L140 encePairwiseOnDemand]: 209/218 looper letters, 18 selfloop transitions, 14 changer transitions 0/204 dead transitions.
[2024-11-08 18:42:39,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 204 transitions, 482 flow
[2024-11-08 18:42:39,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:42:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-08 18:42:39,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1083 transitions.
[2024-11-08 18:42:39,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8279816513761468
[2024-11-08 18:42:39,852 INFO L175 Difference]: Start difference. First operand has 190 places, 187 transitions, 384 flow. Second operand 6 states and 1083 transitions.
[2024-11-08 18:42:39,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 204 transitions, 482 flow
[2024-11-08 18:42:39,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 204 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 18:42:39,861 INFO L231 Difference]: Finished difference. Result has 200 places, 201 transitions, 486 flow
[2024-11-08 18:42:39,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=486, PETRI_PLACES=200, PETRI_TRANSITIONS=201}
[2024-11-08 18:42:39,863 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -10 predicate places.
[2024-11-08 18:42:39,863 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 201 transitions, 486 flow
[2024-11-08 18:42:39,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:39,865 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:42:39,866 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:42:39,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 18:42:39,866 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] ===
[2024-11-08 18:42:39,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:42:39,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1716719758, now seen corresponding path program 1 times
[2024-11-08 18:42:39,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:42:39,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389290053]
[2024-11-08 18:42:39,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:42:39,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:42:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:42:40,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:42:40,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:42:40,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389290053]
[2024-11-08 18:42:40,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389290053] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:42:40,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:42:40,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 18:42:40,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706152867]
[2024-11-08 18:42:40,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:42:40,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:42:40,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:42:40,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:42:40,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:42:40,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 218
[2024-11-08 18:42:40,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 201 transitions, 486 flow. Second operand has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:40,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:42:40,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 218
[2024-11-08 18:42:40,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:42:41,451 INFO L124 PetriNetUnfolderBase]: 424/5479 cut-off events.
[2024-11-08 18:42:41,451 INFO L125 PetriNetUnfolderBase]: For 551/587 co-relation queries the response was YES.
[2024-11-08 18:42:41,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6940 conditions, 5479 events. 424/5479 cut-off events. For 551/587 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 59225 event pairs, 36 based on Foata normal form. 0/4584 useless extension candidates. Maximal degree in co-relation 6930. Up to 366 conditions per place.
[2024-11-08 18:42:41,593 INFO L140 encePairwiseOnDemand]: 209/218 looper letters, 28 selfloop transitions, 30 changer transitions 0/238 dead transitions.
[2024-11-08 18:42:41,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 238 transitions, 768 flow
[2024-11-08 18:42:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:42:41,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-08 18:42:41,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1097 transitions.
[2024-11-08 18:42:41,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386850152905199
[2024-11-08 18:42:41,600 INFO L175 Difference]: Start difference. First operand has 200 places, 201 transitions, 486 flow. Second operand 6 states and 1097 transitions.
[2024-11-08 18:42:41,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 238 transitions, 768 flow
[2024-11-08 18:42:41,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 238 transitions, 768 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 18:42:41,617 INFO L231 Difference]: Finished difference. Result has 210 places, 231 transitions, 764 flow
[2024-11-08 18:42:41,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=764, PETRI_PLACES=210, PETRI_TRANSITIONS=231}
[2024-11-08 18:42:41,620 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, 0 predicate places.
[2024-11-08 18:42:41,620 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 231 transitions, 764 flow
[2024-11-08 18:42:41,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:41,623 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:42:41,623 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:42:41,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 18:42:41,623 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] ===
[2024-11-08 18:42:41,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:42:41,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1252648276, now seen corresponding path program 1 times
[2024-11-08 18:42:41,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:42:41,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472869149]
[2024-11-08 18:42:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:42:41,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:42:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:42:41,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:42:41,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:42:41,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472869149]
[2024-11-08 18:42:41,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472869149] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:42:41,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:42:41,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:42:41,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134766549]
[2024-11-08 18:42:41,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:42:41,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 18:42:41,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:42:41,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 18:42:41,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 18:42:41,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 218
[2024-11-08 18:42:41,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 231 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:41,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:42:41,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 218
[2024-11-08 18:42:41,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:42:46,932 INFO L124 PetriNetUnfolderBase]: 4605/30419 cut-off events.
[2024-11-08 18:42:46,932 INFO L125 PetriNetUnfolderBase]: For 5521/5680 co-relation queries the response was YES.
[2024-11-08 18:42:47,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43255 conditions, 30419 events. 4605/30419 cut-off events. For 5521/5680 co-relation queries the response was YES. Maximal size of possible extension queue 752. Compared 434511 event pairs, 1493 based on Foata normal form. 3/26051 useless extension candidates. Maximal degree in co-relation 43240. Up to 5422 conditions per place.
[2024-11-08 18:42:47,297 INFO L140 encePairwiseOnDemand]: 197/218 looper letters, 94 selfloop transitions, 15 changer transitions 0/282 dead transitions.
[2024-11-08 18:42:47,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 282 transitions, 1305 flow
[2024-11-08 18:42:47,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 18:42:47,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-11-08 18:42:47,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions.
[2024-11-08 18:42:47,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8302752293577982
[2024-11-08 18:42:47,299 INFO L175 Difference]: Start difference. First operand has 210 places, 231 transitions, 764 flow. Second operand 3 states and 543 transitions.
[2024-11-08 18:42:47,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 282 transitions, 1305 flow
[2024-11-08 18:42:47,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 282 transitions, 1305 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 18:42:47,318 INFO L231 Difference]: Finished difference. Result has 214 places, 246 transitions, 896 flow
[2024-11-08 18:42:47,318 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=214, PETRI_TRANSITIONS=246}
[2024-11-08 18:42:47,319 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, 4 predicate places.
[2024-11-08 18:42:47,319 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 246 transitions, 896 flow
[2024-11-08 18:42:47,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:47,320 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:42:47,320 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:42:47,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 18:42:47,320 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] ===
[2024-11-08 18:42:47,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:42:47,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1738265030, now seen corresponding path program 1 times
[2024-11-08 18:42:47,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:42:47,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771004401]
[2024-11-08 18:42:47,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:42:47,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:42:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:42:47,334 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 18:42:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 18:42:47,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 18:42:47,344 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 18:42:47,344 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining)
[2024-11-08 18:42:47,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining)
[2024-11-08 18:42:47,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining)
[2024-11-08 18:42:47,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining)
[2024-11-08 18:42:47,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining)
[2024-11-08 18:42:47,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining)
[2024-11-08 18:42:47,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining)
[2024-11-08 18:42:47,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining)
[2024-11-08 18:42:47,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining)
[2024-11-08 18:42:47,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining)
[2024-11-08 18:42:47,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining)
[2024-11-08 18:42:47,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining)
[2024-11-08 18:42:47,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining)
[2024-11-08 18:42:47,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining)
[2024-11-08 18:42:47,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining)
[2024-11-08 18:42:47,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining)
[2024-11-08 18:42:47,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining)
[2024-11-08 18:42:47,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining)
[2024-11-08 18:42:47,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining)
[2024-11-08 18:42:47,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining)
[2024-11-08 18:42:47,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining)
[2024-11-08 18:42:47,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining)
[2024-11-08 18:42:47,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining)
[2024-11-08 18:42:47,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining)
[2024-11-08 18:42:47,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining)
[2024-11-08 18:42:47,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining)
[2024-11-08 18:42:47,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining)
[2024-11-08 18:42:47,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining)
[2024-11-08 18:42:47,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining)
[2024-11-08 18:42:47,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining)
[2024-11-08 18:42:47,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining)
[2024-11-08 18:42:47,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining)
[2024-11-08 18:42:47,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining)
[2024-11-08 18:42:47,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining)
[2024-11-08 18:42:47,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining)
[2024-11-08 18:42:47,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining)
[2024-11-08 18:42:47,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining)
[2024-11-08 18:42:47,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining)
[2024-11-08 18:42:47,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining)
[2024-11-08 18:42:47,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining)
[2024-11-08 18:42:47,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining)
[2024-11-08 18:42:47,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining)
[2024-11-08 18:42:47,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining)
[2024-11-08 18:42:47,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining)
[2024-11-08 18:42:47,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining)
[2024-11-08 18:42:47,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining)
[2024-11-08 18:42:47,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining)
[2024-11-08 18:42:47,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining)
[2024-11-08 18:42:47,352 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining)
[2024-11-08 18:42:47,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 18:42:47,352 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2024-11-08 18:42:47,353 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2024-11-08 18:42:47,353 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2024-11-08 18:42:47,406 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-08 18:42:47,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 270 places, 280 transitions, 578 flow
[2024-11-08 18:42:47,491 INFO L124 PetriNetUnfolderBase]: 32/523 cut-off events.
[2024-11-08 18:42:47,491 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES.
[2024-11-08 18:42:47,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 523 events. 32/523 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2691 event pairs, 0 based on Foata normal form. 0/403 useless extension candidates. Maximal degree in co-relation 384. Up to 8 conditions per place.
[2024-11-08 18:42:47,496 INFO L82 GeneralOperation]: Start removeDead. Operand has 270 places, 280 transitions, 578 flow
[2024-11-08 18:42:47,503 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 280 transitions, 578 flow
[2024-11-08 18:42:47,504 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:42:47,505 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@462ad444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:42:47,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations.
[2024-11-08 18:42:47,507 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-11-08 18:42:47,507 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events.
[2024-11-08 18:42:47,508 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-11-08 18:42:47,508 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:42:47,508 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:42:47,508 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] ===
[2024-11-08 18:42:47,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:42:47,509 INFO L85 PathProgramCache]: Analyzing trace with hash 75347428, now seen corresponding path program 1 times
[2024-11-08 18:42:47,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:42:47,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261275712]
[2024-11-08 18:42:47,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:42:47,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:42:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:42:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:42:47,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:42:47,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261275712]
[2024-11-08 18:42:47,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261275712] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:42:47,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:42:47,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:42:47,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723134781]
[2024-11-08 18:42:47,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:42:47,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 18:42:47,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:42:47,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 18:42:47,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 18:42:47,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 280
[2024-11-08 18:42:47,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 280 transitions, 578 flow. Second operand has 2 states, 2 states have (on average 237.0) internal successors, (474), 2 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:47,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:42:47,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 280
[2024-11-08 18:42:47,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:42:47,783 INFO L124 PetriNetUnfolderBase]: 53/1407 cut-off events.
[2024-11-08 18:42:47,783 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES.
[2024-11-08 18:42:47,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1492 conditions, 1407 events. 53/1407 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11149 event pairs, 27 based on Foata normal form. 116/1271 useless extension candidates. Maximal degree in co-relation 811. Up to 57 conditions per place.
[2024-11-08 18:42:47,802 INFO L140 encePairwiseOnDemand]: 247/280 looper letters, 7 selfloop transitions, 0 changer transitions 0/239 dead transitions.
[2024-11-08 18:42:47,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 239 transitions, 510 flow
[2024-11-08 18:42:47,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 18:42:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2024-11-08 18:42:47,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 512 transitions.
[2024-11-08 18:42:47,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9142857142857143
[2024-11-08 18:42:47,805 INFO L175 Difference]: Start difference. First operand has 270 places, 280 transitions, 578 flow. Second operand 2 states and 512 transitions.
[2024-11-08 18:42:47,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 239 transitions, 510 flow
[2024-11-08 18:42:47,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 239 transitions, 508 flow, removed 1 selfloop flow, removed 0 redundant places.
[2024-11-08 18:42:47,809 INFO L231 Difference]: Finished difference. Result has 243 places, 239 transitions, 494 flow
[2024-11-08 18:42:47,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=494, PETRI_PLACES=243, PETRI_TRANSITIONS=239}
[2024-11-08 18:42:47,811 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, -27 predicate places.
[2024-11-08 18:42:47,812 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 239 transitions, 494 flow
[2024-11-08 18:42:47,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 237.0) internal successors, (474), 2 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:47,812 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:42:47,813 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:42:47,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 18:42:47,813 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] ===
[2024-11-08 18:42:47,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:42:47,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1671747714, now seen corresponding path program 1 times
[2024-11-08 18:42:47,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:42:47,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976810602]
[2024-11-08 18:42:47,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:42:47,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:42:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:42:48,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:42:48,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:42:48,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976810602]
[2024-11-08 18:42:48,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976810602] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:42:48,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:42:48,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 18:42:48,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550651577]
[2024-11-08 18:42:48,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:42:48,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:42:48,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:42:48,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:42:48,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:42:48,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 280
[2024-11-08 18:42:48,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 239 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 227.33333333333334) internal successors, (1364), 6 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:48,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:42:48,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 280
[2024-11-08 18:42:48,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:42:49,717 INFO L124 PetriNetUnfolderBase]: 444/7105 cut-off events.
[2024-11-08 18:42:49,718 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES.
[2024-11-08 18:42:49,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7729 conditions, 7105 events. 444/7105 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 81815 event pairs, 131 based on Foata normal form. 0/5860 useless extension candidates. Maximal degree in co-relation 7723. Up to 442 conditions per place.
[2024-11-08 18:42:49,831 INFO L140 encePairwiseOnDemand]: 270/280 looper letters, 20 selfloop transitions, 18 changer transitions 0/260 dead transitions.
[2024-11-08 18:42:49,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 260 transitions, 612 flow
[2024-11-08 18:42:49,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:42:49,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-08 18:42:49,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1395 transitions.
[2024-11-08 18:42:49,835 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8303571428571429
[2024-11-08 18:42:49,836 INFO L175 Difference]: Start difference. First operand has 243 places, 239 transitions, 494 flow. Second operand 6 states and 1395 transitions.
[2024-11-08 18:42:49,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 260 transitions, 612 flow
[2024-11-08 18:42:49,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 260 transitions, 612 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 18:42:49,842 INFO L231 Difference]: Finished difference. Result has 253 places, 257 transitions, 622 flow
[2024-11-08 18:42:49,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=622, PETRI_PLACES=253, PETRI_TRANSITIONS=257}
[2024-11-08 18:42:49,844 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, -17 predicate places.
[2024-11-08 18:42:49,844 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 257 transitions, 622 flow
[2024-11-08 18:42:49,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 227.33333333333334) internal successors, (1364), 6 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:49,846 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:42:49,846 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:42:49,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-08 18:42:49,847 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] ===
[2024-11-08 18:42:49,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:42:49,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1575052279, now seen corresponding path program 1 times
[2024-11-08 18:42:49,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:42:49,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108948910]
[2024-11-08 18:42:49,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:42:49,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:42:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:42:50,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:42:50,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:42:50,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108948910]
[2024-11-08 18:42:50,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108948910] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:42:50,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:42:50,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 18:42:50,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715681443]
[2024-11-08 18:42:50,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:42:50,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 18:42:50,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:42:50,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 18:42:50,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-11-08 18:42:50,432 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 280
[2024-11-08 18:42:50,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 257 transitions, 622 flow. Second operand has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:50,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:42:50,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 280
[2024-11-08 18:42:50,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-11-08 18:42:53,730 INFO L124 PetriNetUnfolderBase]: 1843/18400 cut-off events.
[2024-11-08 18:42:53,730 INFO L125 PetriNetUnfolderBase]: For 2485/2593 co-relation queries the response was YES.
[2024-11-08 18:42:53,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23689 conditions, 18400 events. 1843/18400 cut-off events. For 2485/2593 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 249960 event pairs, 169 based on Foata normal form. 0/15321 useless extension candidates. Maximal degree in co-relation 23678. Up to 1595 conditions per place.
[2024-11-08 18:42:54,065 INFO L140 encePairwiseOnDemand]: 270/280 looper letters, 38 selfloop transitions, 50 changer transitions 0/318 dead transitions.
[2024-11-08 18:42:54,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 318 transitions, 1104 flow
[2024-11-08 18:42:54,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 18:42:54,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-11-08 18:42:54,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1413 transitions.
[2024-11-08 18:42:54,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8410714285714286
[2024-11-08 18:42:54,069 INFO L175 Difference]: Start difference. First operand has 253 places, 257 transitions, 622 flow. Second operand 6 states and 1413 transitions.
[2024-11-08 18:42:54,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 318 transitions, 1104 flow
[2024-11-08 18:42:54,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 318 transitions, 1104 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-11-08 18:42:54,089 INFO L231 Difference]: Finished difference. Result has 263 places, 307 transitions, 1102 flow
[2024-11-08 18:42:54,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1102, PETRI_PLACES=263, PETRI_TRANSITIONS=307}
[2024-11-08 18:42:54,090 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, -7 predicate places.
[2024-11-08 18:42:54,090 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 307 transitions, 1102 flow
[2024-11-08 18:42:54,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:54,091 INFO L196 CegarLoopForPetriNet]: Found error trace
[2024-11-08 18:42:54,092 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:42:54,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-08 18:42:54,092 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] ===
[2024-11-08 18:42:54,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:42:54,092 INFO L85 PathProgramCache]: Analyzing trace with hash 231813716, now seen corresponding path program 1 times
[2024-11-08 18:42:54,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:42:54,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523765878]
[2024-11-08 18:42:54,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:42:54,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:42:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:42:54,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:42:54,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:42:54,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523765878]
[2024-11-08 18:42:54,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523765878] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:42:54,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:42:54,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 18:42:54,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97905092]
[2024-11-08 18:42:54,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:42:54,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 18:42:54,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:42:54,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 18:42:54,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 18:42:54,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 280
[2024-11-08 18:42:54,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 307 transitions, 1102 flow. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 18:42:54,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-11-08 18:42:54,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 280
[2024-11-08 18:42:54,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand