./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-ext/01b_inc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit
--------------------------------------------------------------------------------
Checking for data races
Using default analysis
Version b8dbc81d
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-ext/01b_inc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 a50cd99e32ae608752174b749acce795b64973c8c13edb78d7146b3ab3630fc9 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER
--- Real Ultimate output ---
This is Ultimate 0.2.3-?-b8dbc81
[2023-08-29 09:27:32,071 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2023-08-29 09:27:32,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2023-08-29 09:27:32,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2023-08-29 09:27:32,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2023-08-29 09:27:32,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2023-08-29 09:27:32,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2023-08-29 09:27:32,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2023-08-29 09:27:32,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2023-08-29 09:27:32,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2023-08-29 09:27:32,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2023-08-29 09:27:32,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2023-08-29 09:27:32,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2023-08-29 09:27:32,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2023-08-29 09:27:32,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2023-08-29 09:27:32,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2023-08-29 09:27:32,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2023-08-29 09:27:32,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2023-08-29 09:27:32,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2023-08-29 09:27:32,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2023-08-29 09:27:32,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2023-08-29 09:27:32,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2023-08-29 09:27:32,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2023-08-29 09:27:32,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2023-08-29 09:27:32,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2023-08-29 09:27:32,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2023-08-29 09:27:32,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2023-08-29 09:27:32,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2023-08-29 09:27:32,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2023-08-29 09:27:32,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2023-08-29 09:27:32,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2023-08-29 09:27:32,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2023-08-29 09:27:32,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-08-29 09:27:32,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2023-08-29 09:27:32,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2023-08-29 09:27:32,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2023-08-29 09:27:32,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2023-08-29 09:27:32,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2023-08-29 09:27:32,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2023-08-29 09:27:32,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2023-08-29 09:27:32,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2023-08-29 09:27:32,121 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf
[2023-08-29 09:27:32,145 INFO L113 SettingsManager]: Loading preferences was successful
[2023-08-29 09:27:32,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2023-08-29 09:27:32,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-08-29 09:27:32,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-08-29 09:27:32,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-08-29 09:27:32,147 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-08-29 09:27:32,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-08-29 09:27:32,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2023-08-29 09:27:32,148 INFO L138 SettingsManager]: * Use SBE=true
[2023-08-29 09:27:32,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-08-29 09:27:32,149 INFO L138 SettingsManager]: * sizeof long=4
[2023-08-29 09:27:32,149 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2023-08-29 09:27:32,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2023-08-29 09:27:32,149 INFO L138 SettingsManager]: * sizeof POINTER=4
[2023-08-29 09:27:32,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2023-08-29 09:27:32,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-08-29 09:27:32,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-08-29 09:27:32,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-08-29 09:27:32,150 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true
[2023-08-29 09:27:32,150 INFO L138 SettingsManager]: * sizeof long double=12
[2023-08-29 09:27:32,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2023-08-29 09:27:32,151 INFO L138 SettingsManager]: * Use constant arrays=true
[2023-08-29 09:27:32,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-08-29 09:27:32,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-08-29 09:27:32,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-08-29 09:27:32,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2023-08-29 09:27:32,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-29 09:27:32,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-08-29 09:27:32,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-08-29 09:27:32,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-08-29 09:27:32,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-08-29 09:27:32,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-08-29 09:27:32,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-08-29 09:27:32,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-08-29 09:27:32,153 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-08-29 09:27:32,153 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-08-29 09:27:32,153 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-08-29 09:27:32,153 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a50cd99e32ae608752174b749acce795b64973c8c13edb78d7146b3ab3630fc9
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER
[2023-08-29 09:27:32,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-08-29 09:27:32,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-08-29 09:27:32,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-08-29 09:27:32,411 INFO L271 PluginConnector]: Initializing CDTParser...
[2023-08-29 09:27:32,411 INFO L275 PluginConnector]: CDTParser initialized
[2023-08-29 09:27:32,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/01b_inc.i
[2023-08-29 09:27:33,430 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2023-08-29 09:27:33,644 INFO L351 CDTParser]: Found 1 translation units.
[2023-08-29 09:27:33,648 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01b_inc.i
[2023-08-29 09:27:33,662 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652998540/e687d96087a246f48a4d9774ff4ab637/FLAG47c5752b6
[2023-08-29 09:27:33,675 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652998540/e687d96087a246f48a4d9774ff4ab637
[2023-08-29 09:27:33,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-08-29 09:27:33,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-08-29 09:27:33,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-08-29 09:27:33,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-08-29 09:27:33,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-08-29 09:27:33,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:27:33" (1/1) ...
[2023-08-29 09:27:33,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374c24a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:33, skipping insertion in model container
[2023-08-29 09:27:33,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:27:33" (1/1) ...
[2023-08-29 09:27:33,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2023-08-29 09:27:33,724 INFO L178 MainTranslator]: Built tables and reachable declarations
[2023-08-29 09:27:33,862 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-08-29 09:27:33,972 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01b_inc.i[31005,31018]
[2023-08-29 09:27:33,978 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-08-29 09:27:33,984 INFO L203 MainTranslator]: Completed pre-run
[2023-08-29 09:27:34,000 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16
[2023-08-29 09:27:34,018 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01b_inc.i[31005,31018]
[2023-08-29 09:27:34,027 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-08-29 09:27:34,050 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler.
[2023-08-29 09:27:34,051 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler.
[2023-08-29 09:27:34,051 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler.
[2023-08-29 09:27:34,055 INFO L208 MainTranslator]: Completed translation
[2023-08-29 09:27:34,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34 WrapperNode
[2023-08-29 09:27:34,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-08-29 09:27:34,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-08-29 09:27:34,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-08-29 09:27:34,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2023-08-29 09:27:34,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34" (1/1) ...
[2023-08-29 09:27:34,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34" (1/1) ...
[2023-08-29 09:27:34,097 INFO L138 Inliner]: procedures = 173, calls = 20, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 90
[2023-08-29 09:27:34,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-08-29 09:27:34,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-08-29 09:27:34,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2023-08-29 09:27:34,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2023-08-29 09:27:34,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34" (1/1) ...
[2023-08-29 09:27:34,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34" (1/1) ...
[2023-08-29 09:27:34,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34" (1/1) ...
[2023-08-29 09:27:34,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34" (1/1) ...
[2023-08-29 09:27:34,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34" (1/1) ...
[2023-08-29 09:27:34,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34" (1/1) ...
[2023-08-29 09:27:34,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34" (1/1) ...
[2023-08-29 09:27:34,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34" (1/1) ...
[2023-08-29 09:27:34,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-08-29 09:27:34,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-08-29 09:27:34,132 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2023-08-29 09:27:34,132 INFO L275 PluginConnector]: RCFGBuilder initialized
[2023-08-29 09:27:34,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34" (1/1) ...
[2023-08-29 09:27:34,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-08-29 09:27:34,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-08-29 09:27:34,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-08-29 09:27:34,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-08-29 09:27:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure thr1
[2023-08-29 09:27:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1
[2023-08-29 09:27:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2023-08-29 09:27:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2023-08-29 09:27:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-08-29 09:27:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-08-29 09:27:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-08-29 09:27:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2023-08-29 09:27:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2023-08-29 09:27:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-08-29 09:27:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-08-29 09:27:34,185 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2023-08-29 09:27:34,273 INFO L236 CfgBuilder]: Building ICFG
[2023-08-29 09:27:34,274 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-08-29 09:27:34,412 INFO L277 CfgBuilder]: Performing block encoding
[2023-08-29 09:27:34,502 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-08-29 09:27:34,509 INFO L302 CfgBuilder]: Removed 1 assume(true) statements.
[2023-08-29 09:27:34,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:27:34 BoogieIcfgContainer
[2023-08-29 09:27:34,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-08-29 09:27:34,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-08-29 09:27:34,513 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2023-08-29 09:27:34,515 INFO L275 PluginConnector]: TraceAbstraction initialized
[2023-08-29 09:27:34,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:27:33" (1/3) ...
[2023-08-29 09:27:34,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319a6f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:27:34, skipping insertion in model container
[2023-08-29 09:27:34,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:27:34" (2/3) ...
[2023-08-29 09:27:34,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319a6f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:27:34, skipping insertion in model container
[2023-08-29 09:27:34,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:27:34" (3/3) ...
[2023-08-29 09:27:34,519 INFO L112 eAbstractionObserver]: Analyzing ICFG 01b_inc.i
[2023-08-29 09:27:34,524 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2023-08-29 09:27:34,530 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-08-29 09:27:34,531 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations.
[2023-08-29 09:27:34,531 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2023-08-29 09:27:34,579 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-08-29 09:27:34,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 53 transitions, 111 flow
[2023-08-29 09:27:34,649 INFO L130 PetriNetUnfolder]: 3/63 cut-off events.
[2023-08-29 09:27:34,649 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-29 09:27:34,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 4 conditions per place.
[2023-08-29 09:27:34,653 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 53 transitions, 111 flow
[2023-08-29 09:27:34,657 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 53 transitions, 111 flow
[2023-08-29 09:27:34,659 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-29 09:27:34,668 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 53 transitions, 111 flow
[2023-08-29 09:27:34,670 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 53 transitions, 111 flow
[2023-08-29 09:27:34,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 53 transitions, 111 flow
[2023-08-29 09:27:34,691 INFO L130 PetriNetUnfolder]: 3/63 cut-off events.
[2023-08-29 09:27:34,691 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-29 09:27:34,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 4 conditions per place.
[2023-08-29 09:27:34,694 INFO L119 LiptonReduction]: Number of co-enabled transitions 702
[2023-08-29 09:27:36,234 INFO L134 LiptonReduction]: Checked pairs total: 767
[2023-08-29 09:27:36,235 INFO L136 LiptonReduction]: Total number of compositions: 65
[2023-08-29 09:27:36,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-29 09:27:36,263 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=LoopsAndPotentialCycles, 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;@4ea9e91, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-29 09:27:36,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations.
[2023-08-29 09:27:36,280 INFO L130 PetriNetUnfolder]: 0/5 cut-off events.
[2023-08-29 09:27:36,280 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-29 09:27:36,281 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:36,281 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-08-29 09:27:36,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] ===
[2023-08-29 09:27:36,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:36,284 INFO L85 PathProgramCache]: Analyzing trace with hash 11341974, now seen corresponding path program 1 times
[2023-08-29 09:27:36,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:36,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615855022]
[2023-08-29 09:27:36,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:36,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 09:27:36,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 09:27:36,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 09:27:36,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615855022]
[2023-08-29 09:27:36,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615855022] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 09:27:36,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 09:27:36,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-08-29 09:27:36,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701691319]
[2023-08-29 09:27:36,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 09:27:36,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-08-29 09:27:36,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 09:27:36,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-08-29 09:27:36,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-08-29 09:27:36,472 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 118
[2023-08-29 09:27:36,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 17 transitions, 39 flow. Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 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)
[2023-08-29 09:27:36,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 09:27:36,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 118
[2023-08-29 09:27:36,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 09:27:36,496 INFO L130 PetriNetUnfolder]: 2/12 cut-off events.
[2023-08-29 09:27:36,496 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-29 09:27:36,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 12 events. 2/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 2 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place.
[2023-08-29 09:27:36,498 INFO L137 encePairwiseOnDemand]: 107/118 looper letters, 5 selfloop transitions, 0 changer transitions 0/6 dead transitions.
[2023-08-29 09:27:36,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 27 flow
[2023-08-29 09:27:36,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-08-29 09:27:36,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-08-29 09:27:36,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 90 transitions.
[2023-08-29 09:27:36,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3813559322033898
[2023-08-29 09:27:36,508 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 90 transitions.
[2023-08-29 09:27:36,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 90 transitions.
[2023-08-29 09:27:36,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 09:27:36,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 90 transitions.
[2023-08-29 09:27:36,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 45.0) internal successors, (90), 2 states have internal predecessors, (90), 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)
[2023-08-29 09:27:36,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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)
[2023-08-29 09:27:36,514 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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)
[2023-08-29 09:27:36,516 INFO L175 Difference]: Start difference. First operand has 20 places, 17 transitions, 39 flow. Second operand 2 states and 90 transitions.
[2023-08-29 09:27:36,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 27 flow
[2023-08-29 09:27:36,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 27 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-08-29 09:27:36,518 INFO L231 Difference]: Finished difference. Result has 10 places, 6 transitions, 17 flow
[2023-08-29 09:27:36,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=17, PETRI_PLACES=10, PETRI_TRANSITIONS=6}
[2023-08-29 09:27:36,521 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -10 predicate places.
[2023-08-29 09:27:36,521 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 6 transitions, 17 flow
[2023-08-29 09:27:36,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 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)
[2023-08-29 09:27:36,522 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:36,522 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1]
[2023-08-29 09:27:36,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-08-29 09:27:36,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] ===
[2023-08-29 09:27:36,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:36,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1985285337, now seen corresponding path program 1 times
[2023-08-29 09:27:36,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:36,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843331002]
[2023-08-29 09:27:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:36,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-29 09:27:36,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-08-29 09:27:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-29 09:27:36,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-08-29 09:27:36,555 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-08-29 09:27:36,556 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining)
[2023-08-29 09:27:36,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining)
[2023-08-29 09:27:36,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining)
[2023-08-29 09:27:36,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining)
[2023-08-29 09:27:36,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining)
[2023-08-29 09:27:36,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining)
[2023-08-29 09:27:36,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining)
[2023-08-29 09:27:36,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining)
[2023-08-29 09:27:36,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining)
[2023-08-29 09:27:36,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining)
[2023-08-29 09:27:36,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining)
[2023-08-29 09:27:36,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining)
[2023-08-29 09:27:36,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining)
[2023-08-29 09:27:36,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining)
[2023-08-29 09:27:36,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining)
[2023-08-29 09:27:36,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining)
[2023-08-29 09:27:36,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining)
[2023-08-29 09:27:36,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining)
[2023-08-29 09:27:36,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining)
[2023-08-29 09:27:36,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining)
[2023-08-29 09:27:36,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining)
[2023-08-29 09:27:36,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-08-29 09:27:36,561 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1]
[2023-08-29 09:27:36,562 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-08-29 09:27:36,562 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2023-08-29 09:27:36,573 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-08-29 09:27:36,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 174 flow
[2023-08-29 09:27:36,585 INFO L130 PetriNetUnfolder]: 5/103 cut-off events.
[2023-08-29 09:27:36,585 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-08-29 09:27:36,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 103 events. 5/103 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 237 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 66. Up to 6 conditions per place.
[2023-08-29 09:27:36,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 81 transitions, 174 flow
[2023-08-29 09:27:36,587 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 81 transitions, 174 flow
[2023-08-29 09:27:36,587 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-29 09:27:36,587 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 81 transitions, 174 flow
[2023-08-29 09:27:36,587 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 81 transitions, 174 flow
[2023-08-29 09:27:36,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 81 transitions, 174 flow
[2023-08-29 09:27:36,595 INFO L130 PetriNetUnfolder]: 5/103 cut-off events.
[2023-08-29 09:27:36,596 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2023-08-29 09:27:36,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 103 events. 5/103 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 237 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 66. Up to 6 conditions per place.
[2023-08-29 09:27:36,597 INFO L119 LiptonReduction]: Number of co-enabled transitions 2916
[2023-08-29 09:27:37,401 INFO L134 LiptonReduction]: Checked pairs total: 15905
[2023-08-29 09:27:37,402 INFO L136 LiptonReduction]: Total number of compositions: 46
[2023-08-29 09:27:37,403 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-29 09:27:37,404 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=LoopsAndPotentialCycles, 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;@4ea9e91, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-29 09:27:37,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations.
[2023-08-29 09:27:37,405 INFO L130 PetriNetUnfolder]: 0/5 cut-off events.
[2023-08-29 09:27:37,405 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-29 09:27:37,405 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:37,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-08-29 09:27:37,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] ===
[2023-08-29 09:27:37,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:37,405 INFO L85 PathProgramCache]: Analyzing trace with hash 16219769, now seen corresponding path program 1 times
[2023-08-29 09:27:37,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:37,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292208297]
[2023-08-29 09:27:37,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:37,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 09:27:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 09:27:37,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 09:27:37,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292208297]
[2023-08-29 09:27:37,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292208297] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 09:27:37,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 09:27:37,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-08-29 09:27:37,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438473281]
[2023-08-29 09:27:37,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 09:27:37,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-08-29 09:27:37,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 09:27:37,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-08-29 09:27:37,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-08-29 09:27:37,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 127
[2023-08-29 09:27:37,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 116 flow. Second operand has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 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)
[2023-08-29 09:27:37,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 09:27:37,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 127
[2023-08-29 09:27:37,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 09:27:37,456 INFO L130 PetriNetUnfolder]: 86/252 cut-off events.
[2023-08-29 09:27:37,456 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES.
[2023-08-29 09:27:37,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 252 events. 86/252 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1250 event pairs, 64 based on Foata normal form. 22/228 useless extension candidates. Maximal degree in co-relation 120. Up to 149 conditions per place.
[2023-08-29 09:27:37,462 INFO L137 encePairwiseOnDemand]: 110/127 looper letters, 14 selfloop transitions, 0 changer transitions 0/35 dead transitions.
[2023-08-29 09:27:37,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 35 transitions, 110 flow
[2023-08-29 09:27:37,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-08-29 09:27:37,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-08-29 09:27:37,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 133 transitions.
[2023-08-29 09:27:37,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5236220472440944
[2023-08-29 09:27:37,464 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 133 transitions.
[2023-08-29 09:27:37,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 133 transitions.
[2023-08-29 09:27:37,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 09:27:37,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 133 transitions.
[2023-08-29 09:27:37,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 66.5) internal successors, (133), 2 states have internal predecessors, (133), 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)
[2023-08-29 09:27:37,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 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)
[2023-08-29 09:27:37,469 INFO L81 ComplementDD]: Finished complementDD. Result 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)
[2023-08-29 09:27:37,469 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 116 flow. Second operand 2 states and 133 transitions.
[2023-08-29 09:27:37,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 35 transitions, 110 flow
[2023-08-29 09:27:37,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 35 transitions, 108 flow, removed 1 selfloop flow, removed 0 redundant places.
[2023-08-29 09:27:37,470 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 80 flow
[2023-08-29 09:27:37,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=80, PETRI_PLACES=39, PETRI_TRANSITIONS=35}
[2023-08-29 09:27:37,471 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -16 predicate places.
[2023-08-29 09:27:37,471 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 80 flow
[2023-08-29 09:27:37,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 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)
[2023-08-29 09:27:37,472 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:37,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-08-29 09:27:37,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-08-29 09:27:37,473 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] ===
[2023-08-29 09:27:37,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:37,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1592656549, now seen corresponding path program 1 times
[2023-08-29 09:27:37,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:37,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004545124]
[2023-08-29 09:27:37,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:37,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 09:27:37,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 09:27:37,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 09:27:37,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004545124]
[2023-08-29 09:27:37,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004545124] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 09:27:37,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 09:27:37,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-08-29 09:27:37,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159075185]
[2023-08-29 09:27:37,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 09:27:37,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-29 09:27:37,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 09:27:37,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-29 09:27:37,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-29 09:27:37,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 127
[2023-08-29 09:27:37,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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)
[2023-08-29 09:27:37,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 09:27:37,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 127
[2023-08-29 09:27:37,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 09:27:37,595 INFO L130 PetriNetUnfolder]: 342/683 cut-off events.
[2023-08-29 09:27:37,596 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES.
[2023-08-29 09:27:37,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1308 conditions, 683 events. 342/683 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3737 event pairs, 115 based on Foata normal form. 0/634 useless extension candidates. Maximal degree in co-relation 1303. Up to 399 conditions per place.
[2023-08-29 09:27:37,599 INFO L137 encePairwiseOnDemand]: 111/127 looper letters, 34 selfloop transitions, 12 changer transitions 0/55 dead transitions.
[2023-08-29 09:27:37,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 55 transitions, 217 flow
[2023-08-29 09:27:37,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-29 09:27:37,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-29 09:27:37,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 167 transitions.
[2023-08-29 09:27:37,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43832020997375326
[2023-08-29 09:27:37,601 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 167 transitions.
[2023-08-29 09:27:37,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 167 transitions.
[2023-08-29 09:27:37,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 09:27:37,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 167 transitions.
[2023-08-29 09:27:37,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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)
[2023-08-29 09:27:37,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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)
[2023-08-29 09:27:37,603 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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)
[2023-08-29 09:27:37,603 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 80 flow. Second operand 3 states and 167 transitions.
[2023-08-29 09:27:37,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 55 transitions, 217 flow
[2023-08-29 09:27:37,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 55 transitions, 217 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-08-29 09:27:37,604 INFO L231 Difference]: Finished difference. Result has 43 places, 47 transitions, 184 flow
[2023-08-29 09:27:37,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=43, PETRI_TRANSITIONS=47}
[2023-08-29 09:27:37,605 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -12 predicate places.
[2023-08-29 09:27:37,605 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 47 transitions, 184 flow
[2023-08-29 09:27:37,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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)
[2023-08-29 09:27:37,606 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:37,606 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2023-08-29 09:27:37,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-08-29 09:27:37,606 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] ===
[2023-08-29 09:27:37,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:37,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1426981899, now seen corresponding path program 1 times
[2023-08-29 09:27:37,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:37,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6586920]
[2023-08-29 09:27:37,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:37,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-29 09:27:37,616 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-08-29 09:27:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-29 09:27:37,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-08-29 09:27:37,624 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-08-29 09:27:37,624 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining)
[2023-08-29 09:27:37,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining)
[2023-08-29 09:27:37,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining)
[2023-08-29 09:27:37,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining)
[2023-08-29 09:27:37,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining)
[2023-08-29 09:27:37,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining)
[2023-08-29 09:27:37,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining)
[2023-08-29 09:27:37,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining)
[2023-08-29 09:27:37,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining)
[2023-08-29 09:27:37,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining)
[2023-08-29 09:27:37,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining)
[2023-08-29 09:27:37,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining)
[2023-08-29 09:27:37,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining)
[2023-08-29 09:27:37,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining)
[2023-08-29 09:27:37,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining)
[2023-08-29 09:27:37,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining)
[2023-08-29 09:27:37,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining)
[2023-08-29 09:27:37,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining)
[2023-08-29 09:27:37,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining)
[2023-08-29 09:27:37,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining)
[2023-08-29 09:27:37,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining)
[2023-08-29 09:27:37,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining)
[2023-08-29 09:27:37,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining)
[2023-08-29 09:27:37,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining)
[2023-08-29 09:27:37,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining)
[2023-08-29 09:27:37,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining)
[2023-08-29 09:27:37,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining)
[2023-08-29 09:27:37,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining)
[2023-08-29 09:27:37,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining)
[2023-08-29 09:27:37,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining)
[2023-08-29 09:27:37,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining)
[2023-08-29 09:27:37,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-08-29 09:27:37,630 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-08-29 09:27:37,630 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-08-29 09:27:37,630 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2023-08-29 09:27:37,643 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-08-29 09:27:37,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 109 transitions, 239 flow
[2023-08-29 09:27:37,652 INFO L130 PetriNetUnfolder]: 7/143 cut-off events.
[2023-08-29 09:27:37,652 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-08-29 09:27:37,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 143 events. 7/143 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 394 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 107. Up to 8 conditions per place.
[2023-08-29 09:27:37,653 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 109 transitions, 239 flow
[2023-08-29 09:27:37,654 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 109 transitions, 239 flow
[2023-08-29 09:27:37,654 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-29 09:27:37,654 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 109 transitions, 239 flow
[2023-08-29 09:27:37,655 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 109 transitions, 239 flow
[2023-08-29 09:27:37,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 109 transitions, 239 flow
[2023-08-29 09:27:37,663 INFO L130 PetriNetUnfolder]: 7/143 cut-off events.
[2023-08-29 09:27:37,663 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2023-08-29 09:27:37,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 143 events. 7/143 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 394 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 107. Up to 8 conditions per place.
[2023-08-29 09:27:37,666 INFO L119 LiptonReduction]: Number of co-enabled transitions 6642
[2023-08-29 09:27:38,602 INFO L134 LiptonReduction]: Checked pairs total: 34981
[2023-08-29 09:27:38,602 INFO L136 LiptonReduction]: Total number of compositions: 60
[2023-08-29 09:27:38,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-29 09:27:38,606 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=LoopsAndPotentialCycles, 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;@4ea9e91, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-29 09:27:38,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations.
[2023-08-29 09:27:38,607 INFO L130 PetriNetUnfolder]: 0/5 cut-off events.
[2023-08-29 09:27:38,607 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-29 09:27:38,607 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:38,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-08-29 09:27:38,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2023-08-29 09:27:38,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:38,608 INFO L85 PathProgramCache]: Analyzing trace with hash 22283761, now seen corresponding path program 1 times
[2023-08-29 09:27:38,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:38,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377453371]
[2023-08-29 09:27:38,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:38,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 09:27:38,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 09:27:38,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 09:27:38,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377453371]
[2023-08-29 09:27:38,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377453371] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 09:27:38,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 09:27:38,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-08-29 09:27:38,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540388836]
[2023-08-29 09:27:38,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 09:27:38,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-08-29 09:27:38,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 09:27:38,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-08-29 09:27:38,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-08-29 09:27:38,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 169
[2023-08-29 09:27:38,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 75 transitions, 171 flow. Second operand has 2 states, 2 states have (on average 67.0) internal successors, (134), 2 states have internal predecessors, (134), 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)
[2023-08-29 09:27:38,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 09:27:38,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 169
[2023-08-29 09:27:38,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 09:27:38,756 INFO L130 PetriNetUnfolder]: 736/1484 cut-off events.
[2023-08-29 09:27:38,756 INFO L131 PetriNetUnfolder]: For 199/199 co-relation queries the response was YES.
[2023-08-29 09:27:38,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2702 conditions, 1484 events. 736/1484 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 9898 event pairs, 564 based on Foata normal form. 172/1422 useless extension candidates. Maximal degree in co-relation 435. Up to 1049 conditions per place.
[2023-08-29 09:27:38,765 INFO L137 encePairwiseOnDemand]: 144/169 looper letters, 20 selfloop transitions, 0 changer transitions 0/50 dead transitions.
[2023-08-29 09:27:38,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 50 transitions, 161 flow
[2023-08-29 09:27:38,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-08-29 09:27:38,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-08-29 09:27:38,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 175 transitions.
[2023-08-29 09:27:38,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5177514792899408
[2023-08-29 09:27:38,785 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 175 transitions.
[2023-08-29 09:27:38,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 175 transitions.
[2023-08-29 09:27:38,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 09:27:38,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 175 transitions.
[2023-08-29 09:27:38,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 87.5) internal successors, (175), 2 states have internal predecessors, (175), 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)
[2023-08-29 09:27:38,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 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)
[2023-08-29 09:27:38,788 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 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)
[2023-08-29 09:27:38,788 INFO L175 Difference]: Start difference. First operand has 79 places, 75 transitions, 171 flow. Second operand 2 states and 175 transitions.
[2023-08-29 09:27:38,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 50 transitions, 161 flow
[2023-08-29 09:27:38,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 155 flow, removed 3 selfloop flow, removed 0 redundant places.
[2023-08-29 09:27:38,791 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 115 flow
[2023-08-29 09:27:38,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=115, PETRI_PLACES=55, PETRI_TRANSITIONS=50}
[2023-08-29 09:27:38,794 INFO L281 CegarLoopForPetriNet]: 79 programPoint places, -24 predicate places.
[2023-08-29 09:27:38,794 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 115 flow
[2023-08-29 09:27:38,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 67.0) internal successors, (134), 2 states have internal predecessors, (134), 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)
[2023-08-29 09:27:38,794 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:38,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-08-29 09:27:38,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-08-29 09:27:38,794 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2023-08-29 09:27:38,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:38,795 INFO L85 PathProgramCache]: Analyzing trace with hash -60121612, now seen corresponding path program 1 times
[2023-08-29 09:27:38,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:38,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210541667]
[2023-08-29 09:27:38,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:38,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 09:27:38,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 09:27:38,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 09:27:38,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210541667]
[2023-08-29 09:27:38,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210541667] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 09:27:38,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 09:27:38,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-08-29 09:27:38,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953054012]
[2023-08-29 09:27:38,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 09:27:38,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-29 09:27:38,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 09:27:38,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-29 09:27:38,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-29 09:27:38,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 169
[2023-08-29 09:27:38,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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)
[2023-08-29 09:27:38,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 09:27:38,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 169
[2023-08-29 09:27:38,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 09:27:39,493 INFO L130 PetriNetUnfolder]: 7268/11575 cut-off events.
[2023-08-29 09:27:39,493 INFO L131 PetriNetUnfolder]: For 358/358 co-relation queries the response was YES.
[2023-08-29 09:27:39,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22452 conditions, 11575 events. 7268/11575 cut-off events. For 358/358 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 83387 event pairs, 2611 based on Foata normal form. 0/10692 useless extension candidates. Maximal degree in co-relation 22446. Up to 7133 conditions per place.
[2023-08-29 09:27:39,542 INFO L137 encePairwiseOnDemand]: 145/169 looper letters, 50 selfloop transitions, 18 changer transitions 0/80 dead transitions.
[2023-08-29 09:27:39,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 80 transitions, 321 flow
[2023-08-29 09:27:39,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-29 09:27:39,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-29 09:27:39,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions.
[2023-08-29 09:27:39,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4240631163708087
[2023-08-29 09:27:39,544 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 215 transitions.
[2023-08-29 09:27:39,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 215 transitions.
[2023-08-29 09:27:39,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 09:27:39,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 215 transitions.
[2023-08-29 09:27:39,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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)
[2023-08-29 09:27:39,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 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)
[2023-08-29 09:27:39,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 169.0) internal successors, (676), 4 states have internal predecessors, (676), 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)
[2023-08-29 09:27:39,547 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 115 flow. Second operand 3 states and 215 transitions.
[2023-08-29 09:27:39,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 80 transitions, 321 flow
[2023-08-29 09:27:39,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 80 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-08-29 09:27:39,550 INFO L231 Difference]: Finished difference. Result has 59 places, 68 transitions, 271 flow
[2023-08-29 09:27:39,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=59, PETRI_TRANSITIONS=68}
[2023-08-29 09:27:39,552 INFO L281 CegarLoopForPetriNet]: 79 programPoint places, -20 predicate places.
[2023-08-29 09:27:39,552 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 68 transitions, 271 flow
[2023-08-29 09:27:39,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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)
[2023-08-29 09:27:39,552 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:39,552 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1]
[2023-08-29 09:27:39,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-08-29 09:27:39,552 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2023-08-29 09:27:39,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:39,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1411748487, now seen corresponding path program 1 times
[2023-08-29 09:27:39,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:39,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103989906]
[2023-08-29 09:27:39,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:39,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-29 09:27:39,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-08-29 09:27:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-29 09:27:39,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-08-29 09:27:39,583 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-08-29 09:27:39,583 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining)
[2023-08-29 09:27:39,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining)
[2023-08-29 09:27:39,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining)
[2023-08-29 09:27:39,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining)
[2023-08-29 09:27:39,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining)
[2023-08-29 09:27:39,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining)
[2023-08-29 09:27:39,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (34 of 41 remaining)
[2023-08-29 09:27:39,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining)
[2023-08-29 09:27:39,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining)
[2023-08-29 09:27:39,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining)
[2023-08-29 09:27:39,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining)
[2023-08-29 09:27:39,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining)
[2023-08-29 09:27:39,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining)
[2023-08-29 09:27:39,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining)
[2023-08-29 09:27:39,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining)
[2023-08-29 09:27:39,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining)
[2023-08-29 09:27:39,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining)
[2023-08-29 09:27:39,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining)
[2023-08-29 09:27:39,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining)
[2023-08-29 09:27:39,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining)
[2023-08-29 09:27:39,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining)
[2023-08-29 09:27:39,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining)
[2023-08-29 09:27:39,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining)
[2023-08-29 09:27:39,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining)
[2023-08-29 09:27:39,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining)
[2023-08-29 09:27:39,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining)
[2023-08-29 09:27:39,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining)
[2023-08-29 09:27:39,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining)
[2023-08-29 09:27:39,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining)
[2023-08-29 09:27:39,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining)
[2023-08-29 09:27:39,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining)
[2023-08-29 09:27:39,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining)
[2023-08-29 09:27:39,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining)
[2023-08-29 09:27:39,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining)
[2023-08-29 09:27:39,595 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining)
[2023-08-29 09:27:39,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining)
[2023-08-29 09:27:39,597 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining)
[2023-08-29 09:27:39,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining)
[2023-08-29 09:27:39,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining)
[2023-08-29 09:27:39,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining)
[2023-08-29 09:27:39,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining)
[2023-08-29 09:27:39,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-08-29 09:27:39,599 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2023-08-29 09:27:39,600 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-08-29 09:27:39,600 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2023-08-29 09:27:39,622 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-08-29 09:27:39,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 137 transitions, 306 flow
[2023-08-29 09:27:39,638 INFO L130 PetriNetUnfolder]: 9/183 cut-off events.
[2023-08-29 09:27:39,639 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES.
[2023-08-29 09:27:39,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 183 events. 9/183 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 542 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 151. Up to 10 conditions per place.
[2023-08-29 09:27:39,639 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 137 transitions, 306 flow
[2023-08-29 09:27:39,644 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 137 transitions, 306 flow
[2023-08-29 09:27:39,644 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-29 09:27:39,645 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 137 transitions, 306 flow
[2023-08-29 09:27:39,645 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 137 transitions, 306 flow
[2023-08-29 09:27:39,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 137 transitions, 306 flow
[2023-08-29 09:27:39,676 INFO L130 PetriNetUnfolder]: 9/183 cut-off events.
[2023-08-29 09:27:39,676 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES.
[2023-08-29 09:27:39,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 183 events. 9/183 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 542 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 151. Up to 10 conditions per place.
[2023-08-29 09:27:39,681 INFO L119 LiptonReduction]: Number of co-enabled transitions 11880
[2023-08-29 09:27:40,792 INFO L134 LiptonReduction]: Checked pairs total: 66295
[2023-08-29 09:27:40,792 INFO L136 LiptonReduction]: Total number of compositions: 74
[2023-08-29 09:27:40,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-29 09:27:40,794 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=LoopsAndPotentialCycles, 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;@4ea9e91, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-29 09:27:40,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations.
[2023-08-29 09:27:40,795 INFO L130 PetriNetUnfolder]: 0/6 cut-off events.
[2023-08-29 09:27:40,795 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-29 09:27:40,795 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:40,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-08-29 09:27:40,795 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] ===
[2023-08-29 09:27:40,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:40,795 INFO L85 PathProgramCache]: Analyzing trace with hash 29641625, now seen corresponding path program 1 times
[2023-08-29 09:27:40,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:40,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500687186]
[2023-08-29 09:27:40,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:40,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 09:27:40,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 09:27:40,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 09:27:40,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500687186]
[2023-08-29 09:27:40,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500687186] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 09:27:40,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 09:27:40,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-08-29 09:27:40,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781807990]
[2023-08-29 09:27:40,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 09:27:40,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-08-29 09:27:40,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 09:27:40,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-08-29 09:27:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-08-29 09:27:40,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 211
[2023-08-29 09:27:40,807 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 98 transitions, 228 flow. Second operand has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 states have internal predecessors, (162), 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)
[2023-08-29 09:27:40,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 09:27:40,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 211
[2023-08-29 09:27:40,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 09:27:41,357 INFO L130 PetriNetUnfolder]: 5236/8898 cut-off events.
[2023-08-29 09:27:41,357 INFO L131 PetriNetUnfolder]: For 1817/1817 co-relation queries the response was YES.
[2023-08-29 09:27:41,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16764 conditions, 8898 events. 5236/8898 cut-off events. For 1817/1817 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 68911 event pairs, 4064 based on Foata normal form. 1172/8899 useless extension candidates. Maximal degree in co-relation 2744. Up to 6799 conditions per place.
[2023-08-29 09:27:41,396 INFO L137 encePairwiseOnDemand]: 178/211 looper letters, 26 selfloop transitions, 0 changer transitions 0/65 dead transitions.
[2023-08-29 09:27:41,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 65 transitions, 214 flow
[2023-08-29 09:27:41,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-08-29 09:27:41,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-08-29 09:27:41,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 217 transitions.
[2023-08-29 09:27:41,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.514218009478673
[2023-08-29 09:27:41,397 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 217 transitions.
[2023-08-29 09:27:41,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 217 transitions.
[2023-08-29 09:27:41,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 09:27:41,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 217 transitions.
[2023-08-29 09:27:41,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 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)
[2023-08-29 09:27:41,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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)
[2023-08-29 09:27:41,399 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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)
[2023-08-29 09:27:41,399 INFO L175 Difference]: Start difference. First operand has 103 places, 98 transitions, 228 flow. Second operand 2 states and 217 transitions.
[2023-08-29 09:27:41,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 65 transitions, 214 flow
[2023-08-29 09:27:41,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 65 transitions, 202 flow, removed 6 selfloop flow, removed 0 redundant places.
[2023-08-29 09:27:41,402 INFO L231 Difference]: Finished difference. Result has 71 places, 65 transitions, 150 flow
[2023-08-29 09:27:41,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=150, PETRI_PLACES=71, PETRI_TRANSITIONS=65}
[2023-08-29 09:27:41,404 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -32 predicate places.
[2023-08-29 09:27:41,404 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 65 transitions, 150 flow
[2023-08-29 09:27:41,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.0) internal successors, (162), 2 states have internal predecessors, (162), 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)
[2023-08-29 09:27:41,404 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:41,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-08-29 09:27:41,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-08-29 09:27:41,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] ===
[2023-08-29 09:27:41,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:41,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1579142693, now seen corresponding path program 1 times
[2023-08-29 09:27:41,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:41,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120721471]
[2023-08-29 09:27:41,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:41,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 09:27:41,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 09:27:41,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 09:27:41,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120721471]
[2023-08-29 09:27:41,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120721471] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 09:27:41,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 09:27:41,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-08-29 09:27:41,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233212702]
[2023-08-29 09:27:41,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 09:27:41,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-29 09:27:41,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 09:27:41,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-29 09:27:41,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-29 09:27:41,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 211
[2023-08-29 09:27:41,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 65 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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)
[2023-08-29 09:27:41,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 09:27:41,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 211
[2023-08-29 09:27:41,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 09:27:50,647 INFO L130 PetriNetUnfolder]: 127880/182127 cut-off events.
[2023-08-29 09:27:50,647 INFO L131 PetriNetUnfolder]: For 4775/4775 co-relation queries the response was YES.
[2023-08-29 09:27:51,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356056 conditions, 182127 events. 127880/182127 cut-off events. For 4775/4775 co-relation queries the response was YES. Maximal size of possible extension queue 7744. Compared 1489516 event pairs, 48209 based on Foata normal form. 0/167302 useless extension candidates. Maximal degree in co-relation 356049. Up to 113729 conditions per place.
[2023-08-29 09:27:51,712 INFO L137 encePairwiseOnDemand]: 179/211 looper letters, 66 selfloop transitions, 24 changer transitions 0/105 dead transitions.
[2023-08-29 09:27:51,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 105 transitions, 425 flow
[2023-08-29 09:27:51,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-29 09:27:51,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-29 09:27:51,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions.
[2023-08-29 09:27:51,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4154818325434439
[2023-08-29 09:27:51,715 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions.
[2023-08-29 09:27:51,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions.
[2023-08-29 09:27:51,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 09:27:51,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions.
[2023-08-29 09:27:51,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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)
[2023-08-29 09:27:51,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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)
[2023-08-29 09:27:51,717 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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)
[2023-08-29 09:27:51,717 INFO L175 Difference]: Start difference. First operand has 71 places, 65 transitions, 150 flow. Second operand 3 states and 263 transitions.
[2023-08-29 09:27:51,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 105 transitions, 425 flow
[2023-08-29 09:27:51,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 105 transitions, 425 flow, removed 0 selfloop flow, removed 0 redundant places.
[2023-08-29 09:27:51,723 INFO L231 Difference]: Finished difference. Result has 75 places, 89 transitions, 358 flow
[2023-08-29 09:27:51,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=75, PETRI_TRANSITIONS=89}
[2023-08-29 09:27:51,724 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -28 predicate places.
[2023-08-29 09:27:51,724 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 89 transitions, 358 flow
[2023-08-29 09:27:51,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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)
[2023-08-29 09:27:51,724 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:51,724 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-08-29 09:27:51,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-08-29 09:27:51,725 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] ===
[2023-08-29 09:27:51,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:51,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1027350715, now seen corresponding path program 1 times
[2023-08-29 09:27:51,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:51,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481854501]
[2023-08-29 09:27:51,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:51,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 09:27:51,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-08-29 09:27:51,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 09:27:51,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481854501]
[2023-08-29 09:27:51,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481854501] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 09:27:51,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 09:27:51,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-08-29 09:27:51,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957899425]
[2023-08-29 09:27:51,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 09:27:51,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-29 09:27:51,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 09:27:51,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-29 09:27:51,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-29 09:27:51,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 211
[2023-08-29 09:27:51,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 89 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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)
[2023-08-29 09:27:51,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 09:27:51,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 211
[2023-08-29 09:27:51,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 09:27:52,265 INFO L130 PetriNetUnfolder]: 3338/6705 cut-off events.
[2023-08-29 09:27:52,266 INFO L131 PetriNetUnfolder]: For 4162/4162 co-relation queries the response was YES.
[2023-08-29 09:27:52,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16733 conditions, 6705 events. 3338/6705 cut-off events. For 4162/4162 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 48700 event pairs, 376 based on Foata normal form. 692/7073 useless extension candidates. Maximal degree in co-relation 16724. Up to 3514 conditions per place.
[2023-08-29 09:27:52,293 INFO L137 encePairwiseOnDemand]: 199/211 looper letters, 30 selfloop transitions, 12 changer transitions 0/77 dead transitions.
[2023-08-29 09:27:52,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 77 transitions, 385 flow
[2023-08-29 09:27:52,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-08-29 09:27:52,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2023-08-29 09:27:52,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions.
[2023-08-29 09:27:52,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4296998420221169
[2023-08-29 09:27:52,294 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 272 transitions.
[2023-08-29 09:27:52,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 272 transitions.
[2023-08-29 09:27:52,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 09:27:52,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 272 transitions.
[2023-08-29 09:27:52,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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)
[2023-08-29 09:27:52,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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)
[2023-08-29 09:27:52,296 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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)
[2023-08-29 09:27:52,296 INFO L175 Difference]: Start difference. First operand has 75 places, 89 transitions, 358 flow. Second operand 3 states and 272 transitions.
[2023-08-29 09:27:52,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 77 transitions, 385 flow
[2023-08-29 09:27:52,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 77 transitions, 353 flow, removed 0 selfloop flow, removed 2 redundant places.
[2023-08-29 09:27:52,304 INFO L231 Difference]: Finished difference. Result has 67 places, 65 transitions, 238 flow
[2023-08-29 09:27:52,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=67, PETRI_TRANSITIONS=65}
[2023-08-29 09:27:52,304 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -36 predicate places.
[2023-08-29 09:27:52,305 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 65 transitions, 238 flow
[2023-08-29 09:27:52,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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)
[2023-08-29 09:27:52,305 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:52,305 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1]
[2023-08-29 09:27:52,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-08-29 09:27:52,305 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] ===
[2023-08-29 09:27:52,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:52,306 INFO L85 PathProgramCache]: Analyzing trace with hash -806728091, now seen corresponding path program 1 times
[2023-08-29 09:27:52,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:52,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475770064]
[2023-08-29 09:27:52,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:52,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-29 09:27:52,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-08-29 09:27:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-08-29 09:27:52,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-08-29 09:27:52,327 INFO L360 BasicCegarLoop]: Counterexample is feasible
[2023-08-29 09:27:52,327 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 51 remaining)
[2023-08-29 09:27:52,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining)
[2023-08-29 09:27:52,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining)
[2023-08-29 09:27:52,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining)
[2023-08-29 09:27:52,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining)
[2023-08-29 09:27:52,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining)
[2023-08-29 09:27:52,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (44 of 51 remaining)
[2023-08-29 09:27:52,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining)
[2023-08-29 09:27:52,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining)
[2023-08-29 09:27:52,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining)
[2023-08-29 09:27:52,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining)
[2023-08-29 09:27:52,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining)
[2023-08-29 09:27:52,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining)
[2023-08-29 09:27:52,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining)
[2023-08-29 09:27:52,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining)
[2023-08-29 09:27:52,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining)
[2023-08-29 09:27:52,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining)
[2023-08-29 09:27:52,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining)
[2023-08-29 09:27:52,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining)
[2023-08-29 09:27:52,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining)
[2023-08-29 09:27:52,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining)
[2023-08-29 09:27:52,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining)
[2023-08-29 09:27:52,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining)
[2023-08-29 09:27:52,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining)
[2023-08-29 09:27:52,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining)
[2023-08-29 09:27:52,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining)
[2023-08-29 09:27:52,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining)
[2023-08-29 09:27:52,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining)
[2023-08-29 09:27:52,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining)
[2023-08-29 09:27:52,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining)
[2023-08-29 09:27:52,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (20 of 51 remaining)
[2023-08-29 09:27:52,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 51 remaining)
[2023-08-29 09:27:52,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining)
[2023-08-29 09:27:52,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining)
[2023-08-29 09:27:52,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining)
[2023-08-29 09:27:52,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining)
[2023-08-29 09:27:52,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining)
[2023-08-29 09:27:52,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining)
[2023-08-29 09:27:52,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining)
[2023-08-29 09:27:52,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining)
[2023-08-29 09:27:52,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining)
[2023-08-29 09:27:52,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining)
[2023-08-29 09:27:52,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining)
[2023-08-29 09:27:52,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining)
[2023-08-29 09:27:52,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining)
[2023-08-29 09:27:52,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining)
[2023-08-29 09:27:52,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining)
[2023-08-29 09:27:52,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining)
[2023-08-29 09:27:52,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining)
[2023-08-29 09:27:52,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining)
[2023-08-29 09:27:52,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining)
[2023-08-29 09:27:52,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-08-29 09:27:52,334 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2023-08-29 09:27:52,334 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis
[2023-08-29 09:27:52,334 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances.
[2023-08-29 09:27:52,353 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2023-08-29 09:27:52,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 165 transitions, 375 flow
[2023-08-29 09:27:52,368 INFO L130 PetriNetUnfolder]: 11/223 cut-off events.
[2023-08-29 09:27:52,368 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES.
[2023-08-29 09:27:52,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 223 events. 11/223 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 697 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 196. Up to 12 conditions per place.
[2023-08-29 09:27:52,370 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 165 transitions, 375 flow
[2023-08-29 09:27:52,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 165 transitions, 375 flow
[2023-08-29 09:27:52,371 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2023-08-29 09:27:52,371 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 165 transitions, 375 flow
[2023-08-29 09:27:52,372 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 165 transitions, 375 flow
[2023-08-29 09:27:52,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 165 transitions, 375 flow
[2023-08-29 09:27:52,383 INFO L130 PetriNetUnfolder]: 11/223 cut-off events.
[2023-08-29 09:27:52,384 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES.
[2023-08-29 09:27:52,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 223 events. 11/223 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 697 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 196. Up to 12 conditions per place.
[2023-08-29 09:27:52,391 INFO L119 LiptonReduction]: Number of co-enabled transitions 18630
[2023-08-29 09:27:53,686 INFO L134 LiptonReduction]: Checked pairs total: 124921
[2023-08-29 09:27:53,686 INFO L136 LiptonReduction]: Total number of compositions: 84
[2023-08-29 09:27:53,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-08-29 09:27:53,688 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=LoopsAndPotentialCycles, 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;@4ea9e91, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-08-29 09:27:53,688 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations.
[2023-08-29 09:27:53,689 INFO L130 PetriNetUnfolder]: 0/6 cut-off events.
[2023-08-29 09:27:53,689 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2023-08-29 09:27:53,689 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:53,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1]
[2023-08-29 09:27:53,689 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] ===
[2023-08-29 09:27:53,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:53,689 INFO L85 PathProgramCache]: Analyzing trace with hash 38167496, now seen corresponding path program 1 times
[2023-08-29 09:27:53,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:53,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089097188]
[2023-08-29 09:27:53,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:53,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 09:27:53,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 09:27:53,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 09:27:53,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089097188]
[2023-08-29 09:27:53,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089097188] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 09:27:53,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 09:27:53,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2023-08-29 09:27:53,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750858371]
[2023-08-29 09:27:53,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 09:27:53,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-08-29 09:27:53,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 09:27:53,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-08-29 09:27:53,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-08-29 09:27:53,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 249
[2023-08-29 09:27:53,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 121 transitions, 287 flow. Second operand has 2 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 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)
[2023-08-29 09:27:53,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 09:27:53,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 249
[2023-08-29 09:27:53,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2023-08-29 09:27:56,904 INFO L130 PetriNetUnfolder]: 33986/52218 cut-off events.
[2023-08-29 09:27:56,904 INFO L131 PetriNetUnfolder]: For 14312/14312 co-relation queries the response was YES.
[2023-08-29 09:27:57,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100515 conditions, 52218 events. 33986/52218 cut-off events. For 14312/14312 co-relation queries the response was YES. Maximal size of possible extension queue 2480. Compared 441211 event pairs, 26564 based on Foata normal form. 7422/53793 useless extension candidates. Maximal degree in co-relation 16994. Up to 41799 conditions per place.
[2023-08-29 09:27:57,286 INFO L137 encePairwiseOnDemand]: 208/249 looper letters, 32 selfloop transitions, 0 changer transitions 0/80 dead transitions.
[2023-08-29 09:27:57,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 80 transitions, 269 flow
[2023-08-29 09:27:57,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-08-29 09:27:57,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2023-08-29 09:27:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 259 transitions.
[2023-08-29 09:27:57,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5200803212851406
[2023-08-29 09:27:57,288 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 259 transitions.
[2023-08-29 09:27:57,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 259 transitions.
[2023-08-29 09:27:57,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-08-29 09:27:57,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 259 transitions.
[2023-08-29 09:27:57,289 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)
[2023-08-29 09:27:57,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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)
[2023-08-29 09:27:57,289 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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)
[2023-08-29 09:27:57,290 INFO L175 Difference]: Start difference. First operand has 127 places, 121 transitions, 287 flow. Second operand 2 states and 259 transitions.
[2023-08-29 09:27:57,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 80 transitions, 269 flow
[2023-08-29 09:27:57,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 80 transitions, 249 flow, removed 10 selfloop flow, removed 0 redundant places.
[2023-08-29 09:27:57,297 INFO L231 Difference]: Finished difference. Result has 87 places, 80 transitions, 185 flow
[2023-08-29 09:27:57,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=185, PETRI_PLACES=87, PETRI_TRANSITIONS=80}
[2023-08-29 09:27:57,298 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -40 predicate places.
[2023-08-29 09:27:57,298 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 80 transitions, 185 flow
[2023-08-29 09:27:57,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.0) internal successors, (190), 2 states have internal predecessors, (190), 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)
[2023-08-29 09:27:57,298 INFO L200 CegarLoopForPetriNet]: Found error trace
[2023-08-29 09:27:57,298 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2023-08-29 09:27:57,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-08-29 09:27:57,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] ===
[2023-08-29 09:27:57,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier
[2023-08-29 09:27:57,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1975708470, now seen corresponding path program 1 times
[2023-08-29 09:27:57,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-08-29 09:27:57,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495849216]
[2023-08-29 09:27:57,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-08-29 09:27:57,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-08-29 09:27:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-08-29 09:27:57,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-08-29 09:27:57,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-08-29 09:27:57,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495849216]
[2023-08-29 09:27:57,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495849216] provided 1 perfect and 0 imperfect interpolant sequences
[2023-08-29 09:27:57,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-08-29 09:27:57,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-08-29 09:27:57,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915478569]
[2023-08-29 09:27:57,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-08-29 09:27:57,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-08-29 09:27:57,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-08-29 09:27:57,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-08-29 09:27:57,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-08-29 09:27:57,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 249
[2023-08-29 09:27:57,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 80 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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)
[2023-08-29 09:27:57,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2023-08-29 09:27:57,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 249
[2023-08-29 09:27:57,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand