./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for data races
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:42:58,391 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:42:58,516 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-11-19 07:42:58,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:42:58,522 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:42:58,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:42:58,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:42:58,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:42:58,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 07:42:58,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 07:42:58,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:42:58,570 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:42:58,570 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:42:58,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:42:58,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-11-19 07:42:58,573 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-19 07:42:58,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:42:58,574 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-19 07:42:58,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:42:58,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 07:42:58,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 07:42:58,576 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 07:42:58,576 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true
[2023-11-19 07:42:58,576 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:42:58,577 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-19 07:42:58,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:42:58,578 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:42:58,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:42:58,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:42:58,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-19 07:42:58,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:42:58,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:42:58,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 07:42:58,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 07:42:58,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:42:58,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 07:42:58,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 07:42:58,596 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 07:42:58,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 07:42:58,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 07:42:58,596 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 07:42:58,597 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_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440
[2023-11-19 07:42:58,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:42:58,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:42:58,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:42:58,993 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:42:58,994 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:42:58,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i
[2023-11-19 07:43:02,292 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:43:02,706 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:43:02,709 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i
[2023-11-19 07:43:02,735 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/data/65bfc87ee/1817d0c8e6a14de489a7a9c7543498cf/FLAG6a65486e9
[2023-11-19 07:43:02,754 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/data/65bfc87ee/1817d0c8e6a14de489a7a9c7543498cf
[2023-11-19 07:43:02,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:43:02,761 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:43:02,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:43:02,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:43:02,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:43:02,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:02" (1/1) ...
[2023-11-19 07:43:02,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4a711c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02, skipping insertion in model container
[2023-11-19 07:43:02,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:02" (1/1) ...
[2023-11-19 07:43:02,847 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:43:03,094 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:43:03,547 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:43:03,560 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:43:03,602 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-11-19 07:43:03,639 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:43:03,705 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 07:43:03,714 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:43:03,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03 WrapperNode
[2023-11-19 07:43:03,715 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:43:03,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:43:03,717 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:43:03,717 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:43:03,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03" (1/1) ...
[2023-11-19 07:43:03,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03" (1/1) ...
[2023-11-19 07:43:03,807 INFO L138 Inliner]: procedures = 269, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84
[2023-11-19 07:43:03,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:43:03,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:43:03,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:43:03,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:43:03,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03" (1/1) ...
[2023-11-19 07:43:03,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03" (1/1) ...
[2023-11-19 07:43:03,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03" (1/1) ...
[2023-11-19 07:43:03,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03" (1/1) ...
[2023-11-19 07:43:03,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03" (1/1) ...
[2023-11-19 07:43:03,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03" (1/1) ...
[2023-11-19 07:43:03,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03" (1/1) ...
[2023-11-19 07:43:03,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03" (1/1) ...
[2023-11-19 07:43:03,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:43:03,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:43:03,852 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:43:03,852 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:43:03,853 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03" (1/1) ...
[2023-11-19 07:43:03,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 07:43:03,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:43:03,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 07:43:03,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:43:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-19 07:43:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-19 07:43:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-19 07:43:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2023-11-19 07:43:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2023-11-19 07:43:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-11-19 07:43:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2023-11-19 07:43:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-19 07:43:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 07:43:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 07:43:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread
[2023-11-19 07:43:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread
[2023-11-19 07:43:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:43:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:43:03,956 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-11-19 07:43:04,115 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:43:04,117 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:43:04,405 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:43:04,429 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:43:04,429 INFO L302 CfgBuilder]: Removed 2 assume(true) statements.
[2023-11-19 07:43:04,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:04 BoogieIcfgContainer
[2023-11-19 07:43:04,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:43:04,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 07:43:04,443 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 07:43:04,447 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-19 07:43:04,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:02" (1/3) ...
[2023-11-19 07:43:04,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db6ae50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:04, skipping insertion in model container
[2023-11-19 07:43:04,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:03" (2/3) ...
[2023-11-19 07:43:04,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db6ae50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:04, skipping insertion in model container
[2023-11-19 07:43:04,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:04" (3/3) ...
[2023-11-19 07:43:04,455 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race-2.i
[2023-11-19 07:43:04,470 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-11-19 07:43:04,506 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 07:43:04,506 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2023-11-19 07:43:04,507 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-11-19 07:43:04,580 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2023-11-19 07:43:04,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 107 transitions, 221 flow
[2023-11-19 07:43:04,706 INFO L124 PetriNetUnfolderBase]: 6/158 cut-off events.
[2023-11-19 07:43:04,707 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2023-11-19 07:43:04,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 158 events. 6/158 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 321 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 80. Up to 4 conditions per place.
[2023-11-19 07:43:04,713 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 107 transitions, 221 flow
[2023-11-19 07:43:04,718 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 107 transitions, 221 flow
[2023-11-19 07:43:04,722 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:43:04,738 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 107 transitions, 221 flow
[2023-11-19 07:43:04,747 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 107 transitions, 221 flow
[2023-11-19 07:43:04,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 107 transitions, 221 flow
[2023-11-19 07:43:04,809 INFO L124 PetriNetUnfolderBase]: 6/158 cut-off events.
[2023-11-19 07:43:04,810 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2023-11-19 07:43:04,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 158 events. 6/158 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 321 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 80. Up to 4 conditions per place.
[2023-11-19 07:43:04,820 INFO L119 LiptonReduction]: Number of co-enabled transitions 1740
[2023-11-19 07:43:09,962 INFO L134 LiptonReduction]: Checked pairs total: 2148
[2023-11-19 07:43:09,962 INFO L136 LiptonReduction]: Total number of compositions: 101
[2023-11-19 07:43:09,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:43:09,985 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a063a88, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:43:09,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations.
[2023-11-19 07:43:09,988 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:43:09,988 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events.
[2023-11-19 07:43:09,989 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:43:09,989 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:09,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-19 07:43:09,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] ===
[2023-11-19 07:43:09,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:09,996 INFO L85 PathProgramCache]: Analyzing trace with hash 12281, now seen corresponding path program 1 times
[2023-11-19 07:43:10,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:10,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778078550]
[2023-11-19 07:43:10,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:10,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:10,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:10,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778078550]
[2023-11-19 07:43:10,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778078550] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:43:10,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:43:10,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:43:10,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18698338]
[2023-11-19 07:43:10,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:43:10,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:43:10,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:10,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:43:10,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:43:10,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 208
[2023-11-19 07:43:10,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 49 flow. Second operand has 2 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:10,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:10,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 208
[2023-11-19 07:43:10,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:10,416 INFO L124 PetriNetUnfolderBase]: 19/66 cut-off events.
[2023-11-19 07:43:10,417 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2023-11-19 07:43:10,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 66 events. 19/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 204 event pairs, 18 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 99. Up to 55 conditions per place.
[2023-11-19 07:43:10,422 INFO L140 encePairwiseOnDemand]: 204/208 looper letters, 13 selfloop transitions, 0 changer transitions 0/17 dead transitions.
[2023-11-19 07:43:10,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 17 transitions, 67 flow
[2023-11-19 07:43:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:43:10,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-19 07:43:10,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 221 transitions.
[2023-11-19 07:43:10,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53125
[2023-11-19 07:43:10,446 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 221 transitions.
[2023-11-19 07:43:10,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 221 transitions.
[2023-11-19 07:43:10,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:10,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 221 transitions.
[2023-11-19 07:43:10,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:10,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:10,468 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:10,471 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 49 flow. Second operand 2 states and 221 transitions.
[2023-11-19 07:43:10,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 17 transitions, 67 flow
[2023-11-19 07:43:10,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 17 transitions, 67 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:43:10,477 INFO L231 Difference]: Finished difference. Result has 20 places, 17 transitions, 41 flow
[2023-11-19 07:43:10,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=41, PETRI_PLACES=20, PETRI_TRANSITIONS=17}
[2023-11-19 07:43:10,484 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -3 predicate places.
[2023-11-19 07:43:10,485 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 17 transitions, 41 flow
[2023-11-19 07:43:10,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:10,486 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:10,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-19 07:43:10,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-19 07:43:10,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] ===
[2023-11-19 07:43:10,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:10,488 INFO L85 PathProgramCache]: Analyzing trace with hash 11793890, now seen corresponding path program 1 times
[2023-11-19 07:43:10,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:10,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725599424]
[2023-11-19 07:43:10,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:10,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:10,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:10,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:10,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725599424]
[2023-11-19 07:43:10,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725599424] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:43:10,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:43:10,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:43:10,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035713603]
[2023-11-19 07:43:10,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:43:10,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:43:10,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:10,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:43:10,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:43:10,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 208
[2023-11-19 07:43:10,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 17 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:10,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:10,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 208
[2023-11-19 07:43:10,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:10,753 INFO L124 PetriNetUnfolderBase]: 24/81 cut-off events.
[2023-11-19 07:43:10,754 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES.
[2023-11-19 07:43:10,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 81 events. 24/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 281 event pairs, 13 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 156. Up to 50 conditions per place.
[2023-11-19 07:43:10,757 INFO L140 encePairwiseOnDemand]: 204/208 looper letters, 14 selfloop transitions, 3 changer transitions 3/22 dead transitions.
[2023-11-19 07:43:10,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 22 transitions, 91 flow
[2023-11-19 07:43:10,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:43:10,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:43:10,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions.
[2023-11-19 07:43:10,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5048076923076923
[2023-11-19 07:43:10,766 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 315 transitions.
[2023-11-19 07:43:10,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 315 transitions.
[2023-11-19 07:43:10,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:10,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 315 transitions.
[2023-11-19 07:43:10,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:10,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:10,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 208.0) internal successors, (832), 4 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:10,779 INFO L175 Difference]: Start difference. First operand has 20 places, 17 transitions, 41 flow. Second operand 3 states and 315 transitions.
[2023-11-19 07:43:10,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 22 transitions, 91 flow
[2023-11-19 07:43:10,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 91 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:43:10,783 INFO L231 Difference]: Finished difference. Result has 24 places, 17 transitions, 56 flow
[2023-11-19 07:43:10,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=208, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=24, PETRI_TRANSITIONS=17}
[2023-11-19 07:43:10,786 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 1 predicate places.
[2023-11-19 07:43:10,793 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 56 flow
[2023-11-19 07:43:10,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:10,794 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:10,794 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-11-19 07:43:10,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-19 07:43:10,795 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] ===
[2023-11-19 07:43:10,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:10,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1536218029, now seen corresponding path program 1 times
[2023-11-19 07:43:10,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:10,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177000241]
[2023-11-19 07:43:10,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:10,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:43:10,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:43:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:43:10,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:43:10,913 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:43:10,914 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining)
[2023-11-19 07:43:10,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining)
[2023-11-19 07:43:10,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining)
[2023-11-19 07:43:10,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining)
[2023-11-19 07:43:10,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining)
[2023-11-19 07:43:10,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining)
[2023-11-19 07:43:10,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining)
[2023-11-19 07:43:10,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining)
[2023-11-19 07:43:10,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-19 07:43:10,919 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-11-19 07:43:10,922 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-19 07:43:10,922 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-11-19 07:43:10,951 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2023-11-19 07:43:10,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 124 transitions, 264 flow
[2023-11-19 07:43:11,030 INFO L124 PetriNetUnfolderBase]: 11/276 cut-off events.
[2023-11-19 07:43:11,030 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2023-11-19 07:43:11,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 276 events. 11/276 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 660 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 160. Up to 8 conditions per place.
[2023-11-19 07:43:11,033 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 124 transitions, 264 flow
[2023-11-19 07:43:11,036 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 124 transitions, 264 flow
[2023-11-19 07:43:11,036 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:43:11,037 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 124 transitions, 264 flow
[2023-11-19 07:43:11,037 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 124 transitions, 264 flow
[2023-11-19 07:43:11,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 124 transitions, 264 flow
[2023-11-19 07:43:11,089 INFO L124 PetriNetUnfolderBase]: 11/276 cut-off events.
[2023-11-19 07:43:11,089 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES.
[2023-11-19 07:43:11,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 276 events. 11/276 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 660 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 160. Up to 8 conditions per place.
[2023-11-19 07:43:11,098 INFO L119 LiptonReduction]: Number of co-enabled transitions 4200
[2023-11-19 07:43:15,946 INFO L134 LiptonReduction]: Checked pairs total: 7077
[2023-11-19 07:43:15,948 INFO L136 LiptonReduction]: Total number of compositions: 109
[2023-11-19 07:43:15,952 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:43:15,955 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a063a88, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:43:15,956 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations.
[2023-11-19 07:43:15,958 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:43:15,958 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events.
[2023-11-19 07:43:15,958 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:43:15,959 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:15,959 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-19 07:43:15,959 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2023-11-19 07:43:15,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:15,960 INFO L85 PathProgramCache]: Analyzing trace with hash 20284, now seen corresponding path program 1 times
[2023-11-19 07:43:15,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:15,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012243210]
[2023-11-19 07:43:15,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:15,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:16,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:16,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012243210]
[2023-11-19 07:43:16,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012243210] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:43:16,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:43:16,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:43:16,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850962384]
[2023-11-19 07:43:16,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:43:16,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:43:16,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:16,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:43:16,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:43:16,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 233
[2023-11-19 07:43:16,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 82 flow. Second operand has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:16,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 233
[2023-11-19 07:43:16,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:16,203 INFO L124 PetriNetUnfolderBase]: 382/792 cut-off events.
[2023-11-19 07:43:16,204 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES.
[2023-11-19 07:43:16,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 792 events. 382/792 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4095 event pairs, 374 based on Foata normal form. 0/694 useless extension candidates. Maximal degree in co-relation 630. Up to 673 conditions per place.
[2023-11-19 07:43:16,212 INFO L140 encePairwiseOnDemand]: 229/233 looper letters, 21 selfloop transitions, 0 changer transitions 0/29 dead transitions.
[2023-11-19 07:43:16,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 116 flow
[2023-11-19 07:43:16,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:43:16,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-19 07:43:16,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 259 transitions.
[2023-11-19 07:43:16,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.555793991416309
[2023-11-19 07:43:16,214 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 259 transitions.
[2023-11-19 07:43:16,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 259 transitions.
[2023-11-19 07:43:16,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:16,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 259 transitions.
[2023-11-19 07:43:16,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,219 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,219 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 82 flow. Second operand 2 states and 259 transitions.
[2023-11-19 07:43:16,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 116 flow
[2023-11-19 07:43:16,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 29 transitions, 116 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:43:16,222 INFO L231 Difference]: Finished difference. Result has 33 places, 29 transitions, 74 flow
[2023-11-19 07:43:16,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=74, PETRI_PLACES=33, PETRI_TRANSITIONS=29}
[2023-11-19 07:43:16,223 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places.
[2023-11-19 07:43:16,223 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 29 transitions, 74 flow
[2023-11-19 07:43:16,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,224 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:16,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-19 07:43:16,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-19 07:43:16,224 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2023-11-19 07:43:16,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:16,225 INFO L85 PathProgramCache]: Analyzing trace with hash 19489648, now seen corresponding path program 1 times
[2023-11-19 07:43:16,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:16,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443683525]
[2023-11-19 07:43:16,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:16,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:16,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:16,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:16,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443683525]
[2023-11-19 07:43:16,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443683525] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:43:16,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:43:16,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:43:16,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609269911]
[2023-11-19 07:43:16,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:43:16,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:43:16,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:16,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:43:16,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:43:16,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 233
[2023-11-19 07:43:16,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 29 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:16,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 233
[2023-11-19 07:43:16,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:16,476 INFO L124 PetriNetUnfolderBase]: 574/1132 cut-off events.
[2023-11-19 07:43:16,476 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES.
[2023-11-19 07:43:16,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2196 conditions, 1132 events. 574/1132 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 6189 event pairs, 350 based on Foata normal form. 0/1014 useless extension candidates. Maximal degree in co-relation 2191. Up to 736 conditions per place.
[2023-11-19 07:43:16,487 INFO L140 encePairwiseOnDemand]: 228/233 looper letters, 30 selfloop transitions, 4 changer transitions 0/40 dead transitions.
[2023-11-19 07:43:16,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 40 transitions, 164 flow
[2023-11-19 07:43:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:43:16,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:43:16,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions.
[2023-11-19 07:43:16,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.530758226037196
[2023-11-19 07:43:16,490 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 371 transitions.
[2023-11-19 07:43:16,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 371 transitions.
[2023-11-19 07:43:16,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:16,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 371 transitions.
[2023-11-19 07:43:16,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,497 INFO L175 Difference]: Start difference. First operand has 33 places, 29 transitions, 74 flow. Second operand 3 states and 371 transitions.
[2023-11-19 07:43:16,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 40 transitions, 164 flow
[2023-11-19 07:43:16,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:43:16,499 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 104 flow
[2023-11-19 07:43:16,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=37, PETRI_TRANSITIONS=32}
[2023-11-19 07:43:16,500 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places.
[2023-11-19 07:43:16,501 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 104 flow
[2023-11-19 07:43:16,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,502 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:16,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:43:16,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-19 07:43:16,502 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2023-11-19 07:43:16,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:16,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1335950323, now seen corresponding path program 1 times
[2023-11-19 07:43:16,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:16,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655134625]
[2023-11-19 07:43:16,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:16,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:16,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:16,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655134625]
[2023-11-19 07:43:16,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655134625] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:43:16,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:43:16,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:43:16,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695682447]
[2023-11-19 07:43:16,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:43:16,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:43:16,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:16,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:43:16,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:43:16,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 233
[2023-11-19 07:43:16,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:16,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 233
[2023-11-19 07:43:16,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:16,818 INFO L124 PetriNetUnfolderBase]: 643/1292 cut-off events.
[2023-11-19 07:43:16,818 INFO L125 PetriNetUnfolderBase]: For 363/373 co-relation queries the response was YES.
[2023-11-19 07:43:16,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2827 conditions, 1292 events. 643/1292 cut-off events. For 363/373 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7641 event pairs, 370 based on Foata normal form. 0/1180 useless extension candidates. Maximal degree in co-relation 2820. Up to 837 conditions per place.
[2023-11-19 07:43:16,828 INFO L140 encePairwiseOnDemand]: 227/233 looper letters, 33 selfloop transitions, 7 changer transitions 0/48 dead transitions.
[2023-11-19 07:43:16,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 234 flow
[2023-11-19 07:43:16,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:43:16,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:43:16,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions.
[2023-11-19 07:43:16,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5264663805436338
[2023-11-19 07:43:16,831 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions.
[2023-11-19 07:43:16,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions.
[2023-11-19 07:43:16,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:16,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions.
[2023-11-19 07:43:16,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 233.0) internal successors, (932), 4 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,836 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 104 flow. Second operand 3 states and 368 transitions.
[2023-11-19 07:43:16,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 234 flow
[2023-11-19 07:43:16,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:43:16,843 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 152 flow
[2023-11-19 07:43:16,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=39, PETRI_TRANSITIONS=37}
[2023-11-19 07:43:16,844 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places.
[2023-11-19 07:43:16,844 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 152 flow
[2023-11-19 07:43:16,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:16,845 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:16,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:43:16,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-19 07:43:16,846 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2023-11-19 07:43:16,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:16,846 INFO L85 PathProgramCache]: Analyzing trace with hash 345247705, now seen corresponding path program 1 times
[2023-11-19 07:43:16,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:16,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984923173]
[2023-11-19 07:43:16,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:16,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:16,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:16,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:16,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984923173]
[2023-11-19 07:43:16,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984923173] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:43:16,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47928289]
[2023-11-19 07:43:16,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:16,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:43:16,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:43:16,945 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:43:16,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-19 07:43:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:17,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:43:17,073 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:43:17,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:17,143 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:43:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:17,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47928289] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:43:17,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:43:17,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6
[2023-11-19 07:43:17,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619610232]
[2023-11-19 07:43:17,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:43:17,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-19 07:43:17,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:17,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-19 07:43:17,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2023-11-19 07:43:17,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 233
[2023-11-19 07:43:17,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 152 flow. Second operand has 7 states, 7 states have (on average 105.85714285714286) internal successors, (741), 7 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:17,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:17,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 233
[2023-11-19 07:43:17,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:17,624 INFO L124 PetriNetUnfolderBase]: 349/736 cut-off events.
[2023-11-19 07:43:17,624 INFO L125 PetriNetUnfolderBase]: For 628/642 co-relation queries the response was YES.
[2023-11-19 07:43:17,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1849 conditions, 736 events. 349/736 cut-off events. For 628/642 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3675 event pairs, 139 based on Foata normal form. 44/732 useless extension candidates. Maximal degree in co-relation 1841. Up to 284 conditions per place.
[2023-11-19 07:43:17,632 INFO L140 encePairwiseOnDemand]: 226/233 looper letters, 48 selfloop transitions, 6 changer transitions 27/90 dead transitions.
[2023-11-19 07:43:17,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 90 transitions, 518 flow
[2023-11-19 07:43:17,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2023-11-19 07:43:17,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2023-11-19 07:43:17,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 899 transitions.
[2023-11-19 07:43:17,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4822961373390558
[2023-11-19 07:43:17,638 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 899 transitions.
[2023-11-19 07:43:17,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 899 transitions.
[2023-11-19 07:43:17,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:17,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 899 transitions.
[2023-11-19 07:43:17,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 112.375) internal successors, (899), 8 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:17,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 233.0) internal successors, (2097), 9 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:17,653 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 233.0) internal successors, (2097), 9 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:17,653 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 152 flow. Second operand 8 states and 899 transitions.
[2023-11-19 07:43:17,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 90 transitions, 518 flow
[2023-11-19 07:43:17,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 90 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:43:17,660 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 167 flow
[2023-11-19 07:43:17,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=167, PETRI_PLACES=48, PETRI_TRANSITIONS=38}
[2023-11-19 07:43:17,661 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places.
[2023-11-19 07:43:17,661 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 167 flow
[2023-11-19 07:43:17,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 105.85714285714286) internal successors, (741), 7 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:17,662 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:17,663 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-11-19 07:43:17,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:43:17,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:43:17,878 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] ===
[2023-11-19 07:43:17,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:17,878 INFO L85 PathProgramCache]: Analyzing trace with hash 879299353, now seen corresponding path program 1 times
[2023-11-19 07:43:17,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:17,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078313689]
[2023-11-19 07:43:17,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:17,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:43:17,930 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:43:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:43:17,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:43:17,967 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:43:17,967 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining)
[2023-11-19 07:43:17,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining)
[2023-11-19 07:43:17,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining)
[2023-11-19 07:43:17,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining)
[2023-11-19 07:43:17,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining)
[2023-11-19 07:43:17,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining)
[2023-11-19 07:43:17,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining)
[2023-11-19 07:43:17,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining)
[2023-11-19 07:43:17,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining)
[2023-11-19 07:43:17,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-11-19 07:43:17,970 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2023-11-19 07:43:17,972 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-19 07:43:17,972 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-11-19 07:43:18,000 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2023-11-19 07:43:18,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 141 transitions, 309 flow
[2023-11-19 07:43:18,072 INFO L124 PetriNetUnfolderBase]: 21/477 cut-off events.
[2023-11-19 07:43:18,072 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES.
[2023-11-19 07:43:18,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 477 events. 21/477 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1410 event pairs, 1 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 284. Up to 16 conditions per place.
[2023-11-19 07:43:18,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 141 transitions, 309 flow
[2023-11-19 07:43:18,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 141 transitions, 309 flow
[2023-11-19 07:43:18,078 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:43:18,078 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 141 transitions, 309 flow
[2023-11-19 07:43:18,079 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 141 transitions, 309 flow
[2023-11-19 07:43:18,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 141 transitions, 309 flow
[2023-11-19 07:43:18,149 INFO L124 PetriNetUnfolderBase]: 21/477 cut-off events.
[2023-11-19 07:43:18,149 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES.
[2023-11-19 07:43:18,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 477 events. 21/477 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1410 event pairs, 1 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 284. Up to 16 conditions per place.
[2023-11-19 07:43:18,166 INFO L119 LiptonReduction]: Number of co-enabled transitions 7110
[2023-11-19 07:43:23,446 INFO L134 LiptonReduction]: Checked pairs total: 13158
[2023-11-19 07:43:23,446 INFO L136 LiptonReduction]: Total number of compositions: 115
[2023-11-19 07:43:23,448 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:43:23,449 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a063a88, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:43:23,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations.
[2023-11-19 07:43:23,451 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:43:23,451 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events.
[2023-11-19 07:43:23,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:43:23,451 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:23,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-19 07:43:23,451 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-19 07:43:23,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:23,459 INFO L85 PathProgramCache]: Analyzing trace with hash 29021, now seen corresponding path program 1 times
[2023-11-19 07:43:23,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:23,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515413968]
[2023-11-19 07:43:23,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:23,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:23,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:23,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:23,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515413968]
[2023-11-19 07:43:23,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515413968] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:43:23,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:43:23,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:43:23,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882985166]
[2023-11-19 07:43:23,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:43:23,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:43:23,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:23,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:43:23,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:43:23,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 256
[2023-11-19 07:43:23,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 109 flow. Second operand has 2 states, 2 states have (on average 133.0) internal successors, (266), 2 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:23,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:23,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 256
[2023-11-19 07:43:23,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:24,412 INFO L124 PetriNetUnfolderBase]: 4003/6542 cut-off events.
[2023-11-19 07:43:24,412 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES.
[2023-11-19 07:43:24,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12757 conditions, 6542 events. 4003/6542 cut-off events. For 492/492 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 40314 event pairs, 3954 based on Foata normal form. 0/5939 useless extension candidates. Maximal degree in co-relation 1727. Up to 5941 conditions per place.
[2023-11-19 07:43:24,469 INFO L140 encePairwiseOnDemand]: 252/256 looper letters, 28 selfloop transitions, 0 changer transitions 0/37 dead transitions.
[2023-11-19 07:43:24,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 37 transitions, 157 flow
[2023-11-19 07:43:24,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:43:24,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-19 07:43:24,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 296 transitions.
[2023-11-19 07:43:24,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.578125
[2023-11-19 07:43:24,472 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 296 transitions.
[2023-11-19 07:43:24,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 296 transitions.
[2023-11-19 07:43:24,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:24,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 296 transitions.
[2023-11-19 07:43:24,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 148.0) internal successors, (296), 2 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:24,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:24,476 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:24,476 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 109 flow. Second operand 2 states and 296 transitions.
[2023-11-19 07:43:24,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 37 transitions, 157 flow
[2023-11-19 07:43:24,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 157 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:43:24,478 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 101 flow
[2023-11-19 07:43:24,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=101, PETRI_PLACES=42, PETRI_TRANSITIONS=37}
[2023-11-19 07:43:24,479 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places.
[2023-11-19 07:43:24,479 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 101 flow
[2023-11-19 07:43:24,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 133.0) internal successors, (266), 2 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:24,480 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:24,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-19 07:43:24,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-11-19 07:43:24,480 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-19 07:43:24,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:24,481 INFO L85 PathProgramCache]: Analyzing trace with hash 27894866, now seen corresponding path program 1 times
[2023-11-19 07:43:24,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:24,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211678807]
[2023-11-19 07:43:24,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:24,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:24,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:24,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:24,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211678807]
[2023-11-19 07:43:24,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211678807] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:43:24,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:43:24,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:43:24,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889349535]
[2023-11-19 07:43:24,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:43:24,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:43:24,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:24,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:43:24,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:43:24,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 256
[2023-11-19 07:43:24,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:24,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:24,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 256
[2023-11-19 07:43:24,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:26,095 INFO L124 PetriNetUnfolderBase]: 7618/11966 cut-off events.
[2023-11-19 07:43:26,095 INFO L125 PetriNetUnfolderBase]: For 565/565 co-relation queries the response was YES.
[2023-11-19 07:43:26,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23635 conditions, 11966 events. 7618/11966 cut-off events. For 565/565 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 74531 event pairs, 4897 based on Foata normal form. 0/11079 useless extension candidates. Maximal degree in co-relation 23629. Up to 8281 conditions per place.
[2023-11-19 07:43:26,186 INFO L140 encePairwiseOnDemand]: 250/256 looper letters, 43 selfloop transitions, 5 changer transitions 0/54 dead transitions.
[2023-11-19 07:43:26,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 54 transitions, 231 flow
[2023-11-19 07:43:26,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:43:26,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:43:26,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions.
[2023-11-19 07:43:26,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5559895833333334
[2023-11-19 07:43:26,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions.
[2023-11-19 07:43:26,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions.
[2023-11-19 07:43:26,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:26,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions.
[2023-11-19 07:43:26,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:26,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:26,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:26,194 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 101 flow. Second operand 3 states and 427 transitions.
[2023-11-19 07:43:26,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 54 transitions, 231 flow
[2023-11-19 07:43:26,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 54 transitions, 231 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:43:26,197 INFO L231 Difference]: Finished difference. Result has 46 places, 41 transitions, 139 flow
[2023-11-19 07:43:26,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=46, PETRI_TRANSITIONS=41}
[2023-11-19 07:43:26,200 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places.
[2023-11-19 07:43:26,201 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 139 flow
[2023-11-19 07:43:26,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:26,201 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:26,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:43:26,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-11-19 07:43:26,202 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-19 07:43:26,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:26,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1680404689, now seen corresponding path program 1 times
[2023-11-19 07:43:26,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:26,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411184678]
[2023-11-19 07:43:26,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:26,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:26,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:26,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:26,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411184678]
[2023-11-19 07:43:26,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411184678] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:43:26,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:43:26,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:43:26,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830774686]
[2023-11-19 07:43:26,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:43:26,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:43:26,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:26,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:43:26,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:43:26,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 256
[2023-11-19 07:43:26,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 139 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:26,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:26,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 256
[2023-11-19 07:43:26,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:28,051 INFO L124 PetriNetUnfolderBase]: 8140/13055 cut-off events.
[2023-11-19 07:43:28,051 INFO L125 PetriNetUnfolderBase]: For 3385/3385 co-relation queries the response was YES.
[2023-11-19 07:43:28,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29141 conditions, 13055 events. 8140/13055 cut-off events. For 3385/3385 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 86705 event pairs, 6157 based on Foata normal form. 0/12134 useless extension candidates. Maximal degree in co-relation 29133. Up to 10670 conditions per place.
[2023-11-19 07:43:28,151 INFO L140 encePairwiseOnDemand]: 250/256 looper letters, 49 selfloop transitions, 8 changer transitions 0/65 dead transitions.
[2023-11-19 07:43:28,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 65 transitions, 335 flow
[2023-11-19 07:43:28,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:43:28,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:43:28,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 425 transitions.
[2023-11-19 07:43:28,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5533854166666666
[2023-11-19 07:43:28,154 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 425 transitions.
[2023-11-19 07:43:28,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 425 transitions.
[2023-11-19 07:43:28,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:28,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 425 transitions.
[2023-11-19 07:43:28,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:28,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:28,159 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:28,159 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 139 flow. Second operand 3 states and 425 transitions.
[2023-11-19 07:43:28,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 65 transitions, 335 flow
[2023-11-19 07:43:28,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 65 transitions, 319 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:43:28,218 INFO L231 Difference]: Finished difference. Result has 47 places, 47 transitions, 189 flow
[2023-11-19 07:43:28,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=47, PETRI_TRANSITIONS=47}
[2023-11-19 07:43:28,218 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places.
[2023-11-19 07:43:28,219 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 47 transitions, 189 flow
[2023-11-19 07:43:28,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:28,219 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:28,219 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:43:28,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-11-19 07:43:28,219 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-19 07:43:28,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:28,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1266704243, now seen corresponding path program 1 times
[2023-11-19 07:43:28,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:28,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008561433]
[2023-11-19 07:43:28,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:28,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:28,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-11-19 07:43:28,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:28,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008561433]
[2023-11-19 07:43:28,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008561433] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:43:28,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:43:28,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:43:28,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838848769]
[2023-11-19 07:43:28,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:43:28,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:43:28,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:28,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:43:28,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:43:28,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 256
[2023-11-19 07:43:28,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 47 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:28,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:28,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 256
[2023-11-19 07:43:28,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:30,183 INFO L124 PetriNetUnfolderBase]: 10329/16338 cut-off events.
[2023-11-19 07:43:30,183 INFO L125 PetriNetUnfolderBase]: For 9142/9397 co-relation queries the response was YES.
[2023-11-19 07:43:30,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39831 conditions, 16338 events. 10329/16338 cut-off events. For 9142/9397 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 111845 event pairs, 5912 based on Foata normal form. 0/14923 useless extension candidates. Maximal degree in co-relation 39822. Up to 11665 conditions per place.
[2023-11-19 07:43:30,303 INFO L140 encePairwiseOnDemand]: 249/256 looper letters, 53 selfloop transitions, 14 changer transitions 0/75 dead transitions.
[2023-11-19 07:43:30,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 75 transitions, 434 flow
[2023-11-19 07:43:30,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:43:30,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:43:30,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 425 transitions.
[2023-11-19 07:43:30,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5533854166666666
[2023-11-19 07:43:30,306 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 425 transitions.
[2023-11-19 07:43:30,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 425 transitions.
[2023-11-19 07:43:30,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:30,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 425 transitions.
[2023-11-19 07:43:30,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:30,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:30,311 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:30,311 INFO L175 Difference]: Start difference. First operand has 47 places, 47 transitions, 189 flow. Second operand 3 states and 425 transitions.
[2023-11-19 07:43:30,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 75 transitions, 434 flow
[2023-11-19 07:43:30,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 75 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places.
[2023-11-19 07:43:30,318 INFO L231 Difference]: Finished difference. Result has 50 places, 57 transitions, 311 flow
[2023-11-19 07:43:30,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=50, PETRI_TRANSITIONS=57}
[2023-11-19 07:43:30,320 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 5 predicate places.
[2023-11-19 07:43:30,320 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 57 transitions, 311 flow
[2023-11-19 07:43:30,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:30,321 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:30,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:43:30,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-11-19 07:43:30,321 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-19 07:43:30,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:30,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1788530662, now seen corresponding path program 1 times
[2023-11-19 07:43:30,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:30,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443633721]
[2023-11-19 07:43:30,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:30,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:30,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:30,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:30,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443633721]
[2023-11-19 07:43:30,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443633721] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:43:30,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519016328]
[2023-11-19 07:43:30,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:30,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:43:30,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:43:30,449 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:43:30,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-19 07:43:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:30,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:43:30,571 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:43:30,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:30,601 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:43:30,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:30,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519016328] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:43:30,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:43:30,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8
[2023-11-19 07:43:30,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146224441]
[2023-11-19 07:43:30,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:43:30,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-11-19 07:43:30,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:30,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-11-19 07:43:30,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2023-11-19 07:43:30,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 256
[2023-11-19 07:43:30,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 57 transitions, 311 flow. Second operand has 9 states, 9 states have (on average 120.77777777777777) internal successors, (1087), 9 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:30,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:30,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 256
[2023-11-19 07:43:30,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:32,194 INFO L124 PetriNetUnfolderBase]: 5378/8912 cut-off events.
[2023-11-19 07:43:32,194 INFO L125 PetriNetUnfolderBase]: For 11205/12368 co-relation queries the response was YES.
[2023-11-19 07:43:32,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23974 conditions, 8912 events. 5378/8912 cut-off events. For 11205/12368 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 58326 event pairs, 1135 based on Foata normal form. 670/9069 useless extension candidates. Maximal degree in co-relation 23964. Up to 2939 conditions per place.
[2023-11-19 07:43:32,252 INFO L140 encePairwiseOnDemand]: 248/256 looper letters, 132 selfloop transitions, 8 changer transitions 4/157 dead transitions.
[2023-11-19 07:43:32,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 157 transitions, 1060 flow
[2023-11-19 07:43:32,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2023-11-19 07:43:32,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2023-11-19 07:43:32,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1171 transitions.
[2023-11-19 07:43:32,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5082465277777778
[2023-11-19 07:43:32,257 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1171 transitions.
[2023-11-19 07:43:32,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1171 transitions.
[2023-11-19 07:43:32,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:32,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1171 transitions.
[2023-11-19 07:43:32,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 130.11111111111111) internal successors, (1171), 9 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:32,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 256.0) internal successors, (2560), 10 states have internal predecessors, (2560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:32,268 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 256.0) internal successors, (2560), 10 states have internal predecessors, (2560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:32,268 INFO L175 Difference]: Start difference. First operand has 50 places, 57 transitions, 311 flow. Second operand 9 states and 1171 transitions.
[2023-11-19 07:43:32,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 157 transitions, 1060 flow
[2023-11-19 07:43:32,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 157 transitions, 986 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-11-19 07:43:32,288 INFO L231 Difference]: Finished difference. Result has 61 places, 60 transitions, 327 flow
[2023-11-19 07:43:32,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=327, PETRI_PLACES=61, PETRI_TRANSITIONS=60}
[2023-11-19 07:43:32,289 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 16 predicate places.
[2023-11-19 07:43:32,289 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 60 transitions, 327 flow
[2023-11-19 07:43:32,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 120.77777777777777) internal successors, (1087), 9 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:32,290 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:32,290 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:43:32,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-19 07:43:32,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc7477e8-a37d-4955-84be-a73e3de62a83/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:43:32,511 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-19 07:43:32,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:32,511 INFO L85 PathProgramCache]: Analyzing trace with hash 457249281, now seen corresponding path program 1 times
[2023-11-19 07:43:32,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:32,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742902417]
[2023-11-19 07:43:32,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:32,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:32,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:32,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742902417]
[2023-11-19 07:43:32,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742902417] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:43:32,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:43:32,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 07:43:32,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207035568]
[2023-11-19 07:43:32,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:43:32,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:43:32,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:32,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:43:32,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:43:32,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 256
[2023-11-19 07:43:32,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 60 transitions, 327 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:32,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:32,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 256
[2023-11-19 07:43:32,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:32,990 INFO L124 PetriNetUnfolderBase]: 840/2011 cut-off events.
[2023-11-19 07:43:32,990 INFO L125 PetriNetUnfolderBase]: For 2903/2913 co-relation queries the response was YES.
[2023-11-19 07:43:32,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6261 conditions, 2011 events. 840/2011 cut-off events. For 2903/2913 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 13926 event pairs, 171 based on Foata normal form. 407/2366 useless extension candidates. Maximal degree in co-relation 6247. Up to 1348 conditions per place.
[2023-11-19 07:43:33,002 INFO L140 encePairwiseOnDemand]: 250/256 looper letters, 47 selfloop transitions, 7 changer transitions 0/65 dead transitions.
[2023-11-19 07:43:33,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 65 transitions, 440 flow
[2023-11-19 07:43:33,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-19 07:43:33,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-11-19 07:43:33,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 418 transitions.
[2023-11-19 07:43:33,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5442708333333334
[2023-11-19 07:43:33,006 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 418 transitions.
[2023-11-19 07:43:33,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 418 transitions.
[2023-11-19 07:43:33,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:33,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 418 transitions.
[2023-11-19 07:43:33,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:33,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:33,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:33,011 INFO L175 Difference]: Start difference. First operand has 61 places, 60 transitions, 327 flow. Second operand 3 states and 418 transitions.
[2023-11-19 07:43:33,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 65 transitions, 440 flow
[2023-11-19 07:43:33,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 65 transitions, 426 flow, removed 4 selfloop flow, removed 2 redundant places.
[2023-11-19 07:43:33,021 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 249 flow
[2023-11-19 07:43:33,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=249, PETRI_PLACES=60, PETRI_TRANSITIONS=50}
[2023-11-19 07:43:33,022 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 15 predicate places.
[2023-11-19 07:43:33,022 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 249 flow
[2023-11-19 07:43:33,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:33,023 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:33,023 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1]
[2023-11-19 07:43:33,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-11-19 07:43:33,023 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] ===
[2023-11-19 07:43:33,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:33,024 INFO L85 PathProgramCache]: Analyzing trace with hash -652993120, now seen corresponding path program 1 times
[2023-11-19 07:43:33,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:33,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996412275]
[2023-11-19 07:43:33,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:33,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:43:33,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:43:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:43:33,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:43:33,087 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-11-19 07:43:33,087 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining)
[2023-11-19 07:43:33,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining)
[2023-11-19 07:43:33,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining)
[2023-11-19 07:43:33,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining)
[2023-11-19 07:43:33,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining)
[2023-11-19 07:43:33,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining)
[2023-11-19 07:43:33,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining)
[2023-11-19 07:43:33,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining)
[2023-11-19 07:43:33,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining)
[2023-11-19 07:43:33,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining)
[2023-11-19 07:43:33,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-11-19 07:43:33,088 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2023-11-19 07:43:33,089 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-11-19 07:43:33,089 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2023-11-19 07:43:33,112 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2023-11-19 07:43:33,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 158 transitions, 356 flow
[2023-11-19 07:43:33,245 INFO L124 PetriNetUnfolderBase]: 43/846 cut-off events.
[2023-11-19 07:43:33,245 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES.
[2023-11-19 07:43:33,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 897 conditions, 846 events. 43/846 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3385 event pairs, 6 based on Foata normal form. 0/730 useless extension candidates. Maximal degree in co-relation 497. Up to 32 conditions per place.
[2023-11-19 07:43:33,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 158 transitions, 356 flow
[2023-11-19 07:43:33,252 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 158 transitions, 356 flow
[2023-11-19 07:43:33,252 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-11-19 07:43:33,252 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 158 transitions, 356 flow
[2023-11-19 07:43:33,253 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 158 transitions, 356 flow
[2023-11-19 07:43:33,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 158 transitions, 356 flow
[2023-11-19 07:43:33,379 INFO L124 PetriNetUnfolderBase]: 43/846 cut-off events.
[2023-11-19 07:43:33,379 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES.
[2023-11-19 07:43:33,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 897 conditions, 846 events. 43/846 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3385 event pairs, 6 based on Foata normal form. 0/730 useless extension candidates. Maximal degree in co-relation 497. Up to 32 conditions per place.
[2023-11-19 07:43:33,409 INFO L119 LiptonReduction]: Number of co-enabled transitions 10560
[2023-11-19 07:43:38,720 INFO L134 LiptonReduction]: Checked pairs total: 23612
[2023-11-19 07:43:38,720 INFO L136 LiptonReduction]: Total number of compositions: 123
[2023-11-19 07:43:38,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 07:43:38,723 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a063a88, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 07:43:38,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations.
[2023-11-19 07:43:38,724 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2023-11-19 07:43:38,724 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events.
[2023-11-19 07:43:38,725 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2023-11-19 07:43:38,725 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:38,725 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1]
[2023-11-19 07:43:38,725 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-11-19 07:43:38,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:38,725 INFO L85 PathProgramCache]: Analyzing trace with hash 38555, now seen corresponding path program 1 times
[2023-11-19 07:43:38,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:38,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453538225]
[2023-11-19 07:43:38,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:38,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:38,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:38,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:38,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453538225]
[2023-11-19 07:43:38,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453538225] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:43:38,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:43:38,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-11-19 07:43:38,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51807957]
[2023-11-19 07:43:38,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:43:38,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 07:43:38,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:38,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 07:43:38,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-19 07:43:38,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 281
[2023-11-19 07:43:38,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 138 flow. Second operand has 2 states, 2 states have (on average 148.0) internal successors, (296), 2 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:38,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:38,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 281
[2023-11-19 07:43:38,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-11-19 07:43:44,371 INFO L124 PetriNetUnfolderBase]: 31319/48454 cut-off events.
[2023-11-19 07:43:44,371 INFO L125 PetriNetUnfolderBase]: For 4852/4852 co-relation queries the response was YES.
[2023-11-19 07:43:44,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93223 conditions, 48454 events. 31319/48454 cut-off events. For 4852/4852 co-relation queries the response was YES. Maximal size of possible extension queue 1513. Compared 362455 event pairs, 30968 based on Foata normal form. 0/44995 useless extension candidates. Maximal degree in co-relation 13209. Up to 42608 conditions per place.
[2023-11-19 07:43:44,625 INFO L140 encePairwiseOnDemand]: 277/281 looper letters, 34 selfloop transitions, 0 changer transitions 0/45 dead transitions.
[2023-11-19 07:43:44,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 45 transitions, 198 flow
[2023-11-19 07:43:44,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:43:44,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-11-19 07:43:44,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 332 transitions.
[2023-11-19 07:43:44,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5907473309608541
[2023-11-19 07:43:44,628 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 332 transitions.
[2023-11-19 07:43:44,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 332 transitions.
[2023-11-19 07:43:44,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:43:44,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 332 transitions.
[2023-11-19 07:43:44,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 166.0) internal successors, (332), 2 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:44,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:44,632 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:44,632 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 138 flow. Second operand 2 states and 332 transitions.
[2023-11-19 07:43:44,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 45 transitions, 198 flow
[2023-11-19 07:43:44,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 45 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-11-19 07:43:44,635 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 130 flow
[2023-11-19 07:43:44,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=130, PETRI_PLACES=51, PETRI_TRANSITIONS=45}
[2023-11-19 07:43:44,636 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -3 predicate places.
[2023-11-19 07:43:44,636 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 130 flow
[2023-11-19 07:43:44,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 148.0) internal successors, (296), 2 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:44,636 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-11-19 07:43:44,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-11-19 07:43:44,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-11-19 07:43:44,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] ===
[2023-11-19 07:43:44,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:43:44,637 INFO L85 PathProgramCache]: Analyzing trace with hash 37066303, now seen corresponding path program 1 times
[2023-11-19 07:43:44,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:43:44,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775269815]
[2023-11-19 07:43:44,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:43:44,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:43:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:43:44,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:43:44,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:43:44,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775269815]
[2023-11-19 07:43:44,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775269815] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 07:43:44,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 07:43:44,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-19 07:43:44,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330469003]
[2023-11-19 07:43:44,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 07:43:44,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 07:43:44,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:43:44,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 07:43:44,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-19 07:43:44,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 281
[2023-11-19 07:43:44,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:43:44,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-11-19 07:43:44,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 281
[2023-11-19 07:43:44,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand