./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for data races
Using default analysis
Version efd9311c
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1eea0d699fc30cae440905f5eeea19b8e9e5d0b5cc249e9ffded8d356549b279
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-efd9311-m
[2022-04-18 18:42:59,205 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-18 18:42:59,207 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-18 18:42:59,241 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-18 18:42:59,241 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-18 18:42:59,242 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-18 18:42:59,243 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-18 18:42:59,247 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-18 18:42:59,248 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-18 18:42:59,251 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-18 18:42:59,252 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-04-18 18:42:59,253 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-18 18:42:59,253 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-18 18:42:59,255 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-18 18:42:59,255 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-18 18:42:59,258 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-18 18:42:59,258 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-18 18:42:59,259 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-18 18:42:59,260 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-18 18:42:59,264 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-18 18:42:59,265 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-18 18:42:59,266 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-18 18:42:59,266 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-18 18:42:59,267 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-18 18:42:59,268 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-18 18:42:59,278 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-18 18:42:59,278 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-18 18:42:59,279 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-18 18:42:59,279 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-18 18:42:59,280 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-18 18:42:59,281 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-18 18:42:59,281 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-18 18:42:59,282 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-18 18:42:59,282 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-18 18:42:59,283 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-18 18:42:59,283 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-18 18:42:59,284 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-18 18:42:59,284 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-18 18:42:59,284 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-18 18:42:59,284 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-18 18:42:59,285 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-18 18:42:59,286 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-18 18:42:59,287 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf
[2022-04-18 18:42:59,308 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-18 18:42:59,308 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-18 18:42:59,309 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-04-18 18:42:59,309 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-04-18 18:42:59,309 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-18 18:42:59,309 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-18 18:42:59,310 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-04-18 18:42:59,310 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-04-18 18:42:59,310 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-04-18 18:42:59,310 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-04-18 18:42:59,311 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-04-18 18:42:59,311 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-04-18 18:42:59,311 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-04-18 18:42:59,311 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-04-18 18:42:59,311 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-04-18 18:42:59,311 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-04-18 18:42:59,312 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-04-18 18:42:59,312 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-04-18 18:42:59,312 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-18 18:42:59,313 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-04-18 18:42:59,313 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-04-18 18:42:59,313 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-18 18:42:59,314 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-04-18 18:42:59,314 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-18 18:42:59,314 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-18 18:42:59,314 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-18 18:42:59,314 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-18 18:42:59,314 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2022-04-18 18:42:59,315 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-04-18 18:42:59,315 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-18 18:42:59,315 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-18 18:42:59,315 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-18 18:42:59,315 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-18 18:42:59,315 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-18 18:42:59,316 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 18:42:59,316 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-18 18:42:59,316 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-04-18 18:42:59,316 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-18 18:42:59,316 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-04-18 18:42:59,316 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-04-18 18:42:59,316 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-18 18:42:59,317 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-04-18 18:42:59,317 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-18 18:42:59,317 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
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/UTaipan-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/UTaipan-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 -> Taipan
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 -> 1eea0d699fc30cae440905f5eeea19b8e9e5d0b5cc249e9ffded8d356549b279
[2022-04-18 18:42:59,469 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-18 18:42:59,486 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-18 18:42:59,487 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-18 18:42:59,488 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-18 18:42:59,488 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-18 18:42:59,489 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i
[2022-04-18 18:42:59,538 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dcd6f8761/8f689978669d4f9bb10d555ba22da049/FLAGd637afd82
[2022-04-18 18:42:59,930 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-18 18:42:59,930 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i
[2022-04-18 18:42:59,944 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dcd6f8761/8f689978669d4f9bb10d555ba22da049/FLAGd637afd82
[2022-04-18 18:42:59,952 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dcd6f8761/8f689978669d4f9bb10d555ba22da049
[2022-04-18 18:42:59,954 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-18 18:42:59,955 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-04-18 18:42:59,955 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-18 18:42:59,956 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-18 18:42:59,958 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-18 18:42:59,958 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:42:59" (1/1) ...
[2022-04-18 18:42:59,959 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72975cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:59, skipping insertion in model container
[2022-04-18 18:42:59,959 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:42:59" (1/1) ...
[2022-04-18 18:42:59,963 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-18 18:42:59,999 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-18 18:43:00,207 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i[30176,30189]
[2022-04-18 18:43:00,233 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 18:43:00,243 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-18 18:43:00,283 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_24-sound_lock_racing.i[30176,30189]
[2022-04-18 18:43:00,293 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 18:43:00,313 INFO  L208         MainTranslator]: Completed translation
[2022-04-18 18:43:00,313 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:00 WrapperNode
[2022-04-18 18:43:00,314 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-18 18:43:00,314 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-04-18 18:43:00,314 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-04-18 18:43:00,315 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-04-18 18:43:00,328 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:00" (1/1) ...
[2022-04-18 18:43:00,338 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:00" (1/1) ...
[2022-04-18 18:43:00,352 INFO  L137                Inliner]: procedures = 170, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92
[2022-04-18 18:43:00,352 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-04-18 18:43:00,353 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-18 18:43:00,353 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-18 18:43:00,353 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-18 18:43:00,358 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:00" (1/1) ...
[2022-04-18 18:43:00,358 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:00" (1/1) ...
[2022-04-18 18:43:00,364 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:00" (1/1) ...
[2022-04-18 18:43:00,364 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:00" (1/1) ...
[2022-04-18 18:43:00,371 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:00" (1/1) ...
[2022-04-18 18:43:00,377 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:00" (1/1) ...
[2022-04-18 18:43:00,378 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:00" (1/1) ...
[2022-04-18 18:43:00,380 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-18 18:43:00,381 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-18 18:43:00,381 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-18 18:43:00,381 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-18 18:43:00,384 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:00" (1/1) ...
[2022-04-18 18:43:00,390 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 18:43:00,398 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 18:43:00,408 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-04-18 18:43:00,415 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-04-18 18:43:00,444 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-18 18:43:00,444 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-18 18:43:00,445 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2022-04-18 18:43:00,445 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-18 18:43:00,445 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-04-18 18:43:00,445 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2022-04-18 18:43:00,445 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2022-04-18 18:43:00,445 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-18 18:43:00,445 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-18 18:43:00,446 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-18 18:43:00,446 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-18 18:43:00,447 WARN  L208             CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-04-18 18:43:00,540 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-18 18:43:00,542 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-18 18:43:00,715 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-18 18:43:00,721 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-18 18:43:00,721 INFO  L299             CfgBuilder]: Removed 10 assume(true) statements.
[2022-04-18 18:43:00,723 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:43:00 BoogieIcfgContainer
[2022-04-18 18:43:00,723 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-18 18:43:00,733 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-18 18:43:00,734 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-18 18:43:00,736 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-18 18:43:00,736 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:42:59" (1/3) ...
[2022-04-18 18:43:00,737 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fda16bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:43:00, skipping insertion in model container
[2022-04-18 18:43:00,737 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:00" (2/3) ...
[2022-04-18 18:43:00,737 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fda16bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:43:00, skipping insertion in model container
[2022-04-18 18:43:00,737 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:43:00" (3/3) ...
[2022-04-18 18:43:00,738 INFO  L111   eAbstractionObserver]: Analyzing ICFG 28-race_reach_24-sound_lock_racing.i
[2022-04-18 18:43:00,741 WARN  L147   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-04-18 18:43:00,742 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-18 18:43:00,742 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2022-04-18 18:43:00,742 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-04-18 18:43:00,787 INFO  L135    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2022-04-18 18:43:00,816 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 18:43:00,824 INFO  L340      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=FINITE_AUTOMATA, 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
[2022-04-18 18:43:00,825 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 11 error locations.
[2022-04-18 18:43:00,839 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 18:43:00,865 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 143 transitions, 294 flow
[2022-04-18 18:43:00,870 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 143 transitions, 294 flow
[2022-04-18 18:43:00,871 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 133 places, 143 transitions, 294 flow
[2022-04-18 18:43:00,941 INFO  L129       PetriNetUnfolder]: 18/187 cut-off events.
[2022-04-18 18:43:00,941 INFO  L130       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2022-04-18 18:43:00,945 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 193 conditions, 187 events. 18/187 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 521 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 93. Up to 4 conditions per place. 
[2022-04-18 18:43:00,949 INFO  L116        LiptonReduction]: Number of co-enabled transitions 4400
[2022-04-18 18:43:04,726 INFO  L131        LiptonReduction]: Checked pairs total: 10558
[2022-04-18 18:43:04,727 INFO  L133        LiptonReduction]: Total number of compositions: 136
[2022-04-18 18:43:04,733 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 45 transitions, 98 flow
[2022-04-18 18:43:04,772 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 314 states, 287 states have (on average 2.480836236933798) internal successors, (712), 313 states have internal predecessors, (712), 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)
[2022-04-18 18:43:04,782 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 314 states, 287 states have (on average 2.480836236933798) internal successors, (712), 313 states have internal predecessors, (712), 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)
[2022-04-18 18:43:04,786 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-04-18 18:43:04,786 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:43:04,787 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-04-18 18:43:04,788 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] ===
[2022-04-18 18:43:04,792 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:43:04,792 INFO  L85        PathProgramCache]: Analyzing trace with hash 16966175, now seen corresponding path program 1 times
[2022-04-18 18:43:04,800 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:43:04,800 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812279051]
[2022-04-18 18:43:04,800 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:43:04,801 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:43:04,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:43:04,924 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:43:04,924 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:43:04,924 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812279051]
[2022-04-18 18:43:04,925 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812279051] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:43:04,925 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:43:04,925 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:43:04,926 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633181032]
[2022-04-18 18:43:04,926 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:43:04,929 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-18 18:43:04,929 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:43:04,941 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-18 18:43:04,941 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 18:43:04,943 INFO  L87              Difference]: Start difference. First operand  has 314 states, 287 states have (on average 2.480836236933798) internal successors, (712), 313 states have internal predecessors, (712), 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) Second operand  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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)
[2022-04-18 18:43:04,985 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:43:04,985 INFO  L93              Difference]: Finished difference Result 265 states and 486 transitions.
[2022-04-18 18:43:04,986 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-04-18 18:43:04,987 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4
[2022-04-18 18:43:04,987 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:43:04,997 INFO  L225             Difference]: With dead ends: 265
[2022-04-18 18:43:04,997 INFO  L226             Difference]: Without dead ends: 241
[2022-04-18 18:43:04,997 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 18:43:05,001 INFO  L913         BasicCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-18 18:43:05,003 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-18 18:43:05,015 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 241 states.
[2022-04-18 18:43:05,046 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241.
[2022-04-18 18:43:05,047 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 241 states, 230 states have (on average 1.9260869565217391) internal successors, (443), 240 states have internal predecessors, (443), 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)
[2022-04-18 18:43:05,049 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 443 transitions.
[2022-04-18 18:43:05,049 INFO  L78                 Accepts]: Start accepts. Automaton has 241 states and 443 transitions. Word has length 4
[2022-04-18 18:43:05,050 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:43:05,050 INFO  L478      AbstractCegarLoop]: Abstraction has 241 states and 443 transitions.
[2022-04-18 18:43:05,050 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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)
[2022-04-18 18:43:05,050 INFO  L276                IsEmpty]: Start isEmpty. Operand 241 states and 443 transitions.
[2022-04-18 18:43:05,050 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2022-04-18 18:43:05,050 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:43:05,050 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2022-04-18 18:43:05,051 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-18 18:43:05,051 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] ===
[2022-04-18 18:43:05,051 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:43:05,052 INFO  L85        PathProgramCache]: Analyzing trace with hash 525803858, now seen corresponding path program 1 times
[2022-04-18 18:43:05,052 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:43:05,052 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603704017]
[2022-04-18 18:43:05,052 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:43:05,052 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:43:05,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:43:05,097 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:43:05,097 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:43:05,097 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603704017]
[2022-04-18 18:43:05,098 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603704017] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:43:05,098 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:43:05,098 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:43:05,098 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708364906]
[2022-04-18 18:43:05,098 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:43:05,099 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:43:05,099 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:43:05,100 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:43:05,100 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:43:05,100 INFO  L87              Difference]: Start difference. First operand 241 states and 443 transitions. Second operand  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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)
[2022-04-18 18:43:05,141 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:43:05,141 INFO  L93              Difference]: Finished difference Result 286 states and 515 transitions.
[2022-04-18 18:43:05,141 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:43:05,141 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5
[2022-04-18 18:43:05,142 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:43:05,143 INFO  L225             Difference]: With dead ends: 286
[2022-04-18 18:43:05,143 INFO  L226             Difference]: Without dead ends: 274
[2022-04-18 18:43:05,144 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:43:05,145 INFO  L913         BasicCegarLoop]: 16 mSDtfsCounter, 24 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-18 18:43:05,145 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 21 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-18 18:43:05,147 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 274 states.
[2022-04-18 18:43:05,154 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 232.
[2022-04-18 18:43:05,155 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 232 states, 222 states have (on average 1.9054054054054055) internal successors, (423), 231 states have internal predecessors, (423), 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)
[2022-04-18 18:43:05,156 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 423 transitions.
[2022-04-18 18:43:05,157 INFO  L78                 Accepts]: Start accepts. Automaton has 232 states and 423 transitions. Word has length 5
[2022-04-18 18:43:05,157 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:43:05,157 INFO  L478      AbstractCegarLoop]: Abstraction has 232 states and 423 transitions.
[2022-04-18 18:43:05,157 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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)
[2022-04-18 18:43:05,157 INFO  L276                IsEmpty]: Start isEmpty. Operand 232 states and 423 transitions.
[2022-04-18 18:43:05,158 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-04-18 18:43:05,158 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:43:05,158 INFO  L499         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1]
[2022-04-18 18:43:05,158 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-04-18 18:43:05,159 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] ===
[2022-04-18 18:43:05,159 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:43:05,159 INFO  L85        PathProgramCache]: Analyzing trace with hash -867709346, now seen corresponding path program 1 times
[2022-04-18 18:43:05,160 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:43:05,160 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628568435]
[2022-04-18 18:43:05,160 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:43:05,160 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:43:05,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 18:43:05,188 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-18 18:43:05,211 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 18:43:05,223 INFO  L130   FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-04-18 18:43:05,230 INFO  L618         BasicCegarLoop]: Counterexample is feasible
[2022-04-18 18:43:05,231 INFO  L788   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining)
[2022-04-18 18:43:05,233 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining)
[2022-04-18 18:43:05,233 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining)
[2022-04-18 18:43:05,233 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining)
[2022-04-18 18:43:05,233 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining)
[2022-04-18 18:43:05,233 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining)
[2022-04-18 18:43:05,234 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining)
[2022-04-18 18:43:05,234 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining)
[2022-04-18 18:43:05,234 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining)
[2022-04-18 18:43:05,235 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining)
[2022-04-18 18:43:05,235 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining)
[2022-04-18 18:43:05,235 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-04-18 18:43:05,237 INFO  L719         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2022-04-18 18:43:05,240 WARN  L232   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-04-18 18:43:05,240 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2022-04-18 18:43:05,266 INFO  L135    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2022-04-18 18:43:05,267 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 18:43:05,268 INFO  L340      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=FINITE_AUTOMATA, 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
[2022-04-18 18:43:05,268 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 15 error locations.
[2022-04-18 18:43:05,269 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 18:43:05,275 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 189 transitions, 396 flow
[2022-04-18 18:43:05,275 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 189 transitions, 396 flow
[2022-04-18 18:43:05,275 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 174 places, 189 transitions, 396 flow
[2022-04-18 18:43:05,311 INFO  L129       PetriNetUnfolder]: 32/308 cut-off events.
[2022-04-18 18:43:05,312 INFO  L130       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2022-04-18 18:43:05,314 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 322 conditions, 308 events. 32/308 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1050 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 189. Up to 8 conditions per place. 
[2022-04-18 18:43:05,322 INFO  L116        LiptonReduction]: Number of co-enabled transitions 13640
[2022-04-18 18:43:10,410 INFO  L131        LiptonReduction]: Checked pairs total: 57527
[2022-04-18 18:43:10,411 INFO  L133        LiptonReduction]: Total number of compositions: 168
[2022-04-18 18:43:10,419 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 82 transitions, 182 flow
[2022-04-18 18:43:10,618 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 9783 states, 9631 states have (on average 3.4652684041117228) internal successors, (33374), 9782 states have internal predecessors, (33374), 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)
[2022-04-18 18:43:10,651 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 9783 states, 9631 states have (on average 3.4652684041117228) internal successors, (33374), 9782 states have internal predecessors, (33374), 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)
[2022-04-18 18:43:10,652 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-04-18 18:43:10,652 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:43:10,652 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-04-18 18:43:10,655 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] ===
[2022-04-18 18:43:10,655 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:43:10,655 INFO  L85        PathProgramCache]: Analyzing trace with hash 29267980, now seen corresponding path program 1 times
[2022-04-18 18:43:10,655 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:43:10,656 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754751278]
[2022-04-18 18:43:10,656 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:43:10,656 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:43:10,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:43:10,730 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:43:10,730 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:43:10,730 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754751278]
[2022-04-18 18:43:10,730 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754751278] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:43:10,730 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:43:10,731 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:43:10,731 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159280092]
[2022-04-18 18:43:10,731 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:43:10,731 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-18 18:43:10,731 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:43:10,732 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-18 18:43:10,732 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 18:43:10,748 INFO  L87              Difference]: Start difference. First operand  has 9783 states, 9631 states have (on average 3.4652684041117228) internal successors, (33374), 9782 states have internal predecessors, (33374), 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) Second operand  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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)
[2022-04-18 18:43:10,853 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:43:10,854 INFO  L93              Difference]: Finished difference Result 9158 states and 25651 transitions.
[2022-04-18 18:43:10,854 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-04-18 18:43:10,854 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4
[2022-04-18 18:43:10,854 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:43:10,903 INFO  L225             Difference]: With dead ends: 9158
[2022-04-18 18:43:10,904 INFO  L226             Difference]: Without dead ends: 9058
[2022-04-18 18:43:10,904 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 18:43:10,910 INFO  L913         BasicCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-18 18:43:10,910 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-18 18:43:10,930 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9058 states.
[2022-04-18 18:43:11,169 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9058 to 9058.
[2022-04-18 18:43:11,185 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9058 states, 8946 states have (on average 2.839145987033311) internal successors, (25399), 9057 states have internal predecessors, (25399), 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)
[2022-04-18 18:43:11,216 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9058 states to 9058 states and 25399 transitions.
[2022-04-18 18:43:11,216 INFO  L78                 Accepts]: Start accepts. Automaton has 9058 states and 25399 transitions. Word has length 4
[2022-04-18 18:43:11,216 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:43:11,216 INFO  L478      AbstractCegarLoop]: Abstraction has 9058 states and 25399 transitions.
[2022-04-18 18:43:11,217 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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)
[2022-04-18 18:43:11,217 INFO  L276                IsEmpty]: Start isEmpty. Operand 9058 states and 25399 transitions.
[2022-04-18 18:43:11,217 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2022-04-18 18:43:11,217 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:43:11,217 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2022-04-18 18:43:11,217 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-04-18 18:43:11,218 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] ===
[2022-04-18 18:43:11,218 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:43:11,218 INFO  L85        PathProgramCache]: Analyzing trace with hash 907126100, now seen corresponding path program 1 times
[2022-04-18 18:43:11,219 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:43:11,219 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498468529]
[2022-04-18 18:43:11,219 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:43:11,219 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:43:11,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:43:11,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:43:11,266 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:43:11,266 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498468529]
[2022-04-18 18:43:11,266 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498468529] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:43:11,266 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:43:11,267 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:43:11,267 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053686393]
[2022-04-18 18:43:11,267 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:43:11,267 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:43:11,267 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:43:11,268 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:43:11,268 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:43:11,268 INFO  L87              Difference]: Start difference. First operand 9058 states and 25399 transitions. Second operand  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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)
[2022-04-18 18:43:11,463 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:43:11,464 INFO  L93              Difference]: Finished difference Result 12550 states and 34039 transitions.
[2022-04-18 18:43:11,464 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:43:11,464 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5
[2022-04-18 18:43:11,464 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:43:11,518 INFO  L225             Difference]: With dead ends: 12550
[2022-04-18 18:43:11,518 INFO  L226             Difference]: Without dead ends: 12511
[2022-04-18 18:43:11,519 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:43:11,519 INFO  L913         BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 18:43:11,520 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 55 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 18:43:11,540 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12511 states.
[2022-04-18 18:43:11,854 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12511 to 9354.
[2022-04-18 18:43:11,868 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9354 states, 9261 states have (on average 2.7816650469711695) internal successors, (25761), 9353 states have internal predecessors, (25761), 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)
[2022-04-18 18:43:11,969 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9354 states to 9354 states and 25761 transitions.
[2022-04-18 18:43:11,969 INFO  L78                 Accepts]: Start accepts. Automaton has 9354 states and 25761 transitions. Word has length 5
[2022-04-18 18:43:11,969 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:43:11,969 INFO  L478      AbstractCegarLoop]: Abstraction has 9354 states and 25761 transitions.
[2022-04-18 18:43:11,969 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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)
[2022-04-18 18:43:11,969 INFO  L276                IsEmpty]: Start isEmpty. Operand 9354 states and 25761 transitions.
[2022-04-18 18:43:11,970 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-18 18:43:11,970 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:43:11,970 INFO  L499         BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2022-04-18 18:43:11,970 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-04-18 18:43:11,970 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] ===
[2022-04-18 18:43:11,971 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:43:11,971 INFO  L85        PathProgramCache]: Analyzing trace with hash -455296231, now seen corresponding path program 1 times
[2022-04-18 18:43:11,971 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:43:11,972 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275349872]
[2022-04-18 18:43:11,972 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:43:11,972 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:43:11,993 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 18:43:11,995 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-18 18:43:12,008 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 18:43:12,024 INFO  L130   FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-04-18 18:43:12,024 INFO  L618         BasicCegarLoop]: Counterexample is feasible
[2022-04-18 18:43:12,025 INFO  L788   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining)
[2022-04-18 18:43:12,025 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining)
[2022-04-18 18:43:12,025 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining)
[2022-04-18 18:43:12,025 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining)
[2022-04-18 18:43:12,025 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining)
[2022-04-18 18:43:12,026 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining)
[2022-04-18 18:43:12,026 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining)
[2022-04-18 18:43:12,026 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining)
[2022-04-18 18:43:12,026 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining)
[2022-04-18 18:43:12,026 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining)
[2022-04-18 18:43:12,027 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining)
[2022-04-18 18:43:12,027 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining)
[2022-04-18 18:43:12,027 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining)
[2022-04-18 18:43:12,028 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining)
[2022-04-18 18:43:12,028 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining)
[2022-04-18 18:43:12,028 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-04-18 18:43:12,028 INFO  L719         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2022-04-18 18:43:12,028 WARN  L232   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-04-18 18:43:12,029 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2022-04-18 18:43:12,051 INFO  L135    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2022-04-18 18:43:12,052 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 18:43:12,053 INFO  L340      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=FINITE_AUTOMATA, 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
[2022-04-18 18:43:12,053 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 19 error locations.
[2022-04-18 18:43:12,054 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 18:43:12,054 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 235 transitions, 500 flow
[2022-04-18 18:43:12,054 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 235 transitions, 500 flow
[2022-04-18 18:43:12,055 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 215 places, 235 transitions, 500 flow
[2022-04-18 18:43:12,119 INFO  L129       PetriNetUnfolder]: 51/474 cut-off events.
[2022-04-18 18:43:12,119 INFO  L130       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2022-04-18 18:43:12,126 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 502 conditions, 474 events. 51/474 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1809 event pairs, 1 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 316. Up to 16 conditions per place. 
[2022-04-18 18:43:12,146 INFO  L116        LiptonReduction]: Number of co-enabled transitions 26664
[2022-04-18 18:43:16,933 INFO  L131        LiptonReduction]: Checked pairs total: 126675
[2022-04-18 18:43:16,933 INFO  L133        LiptonReduction]: Total number of compositions: 196
[2022-04-18 18:43:16,934 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 113 transitions, 256 flow
[2022-04-18 18:43:23,038 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 238599 states, 237762 states have (on average 4.615123526888233) internal successors, (1097301), 238598 states have internal predecessors, (1097301), 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)
[2022-04-18 18:43:23,451 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 238599 states, 237762 states have (on average 4.615123526888233) internal successors, (1097301), 238598 states have internal predecessors, (1097301), 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)
[2022-04-18 18:43:23,451 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-04-18 18:43:23,451 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:43:23,451 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-04-18 18:43:23,451 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] ===
[2022-04-18 18:43:23,452 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:43:23,452 INFO  L85        PathProgramCache]: Analyzing trace with hash 43550306, now seen corresponding path program 1 times
[2022-04-18 18:43:23,452 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:43:23,452 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261792652]
[2022-04-18 18:43:23,453 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:43:23,453 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:43:23,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:43:23,471 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:43:23,472 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:43:23,472 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261792652]
[2022-04-18 18:43:23,472 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261792652] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:43:23,472 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:43:23,472 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:43:23,472 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437026758]
[2022-04-18 18:43:23,473 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:43:23,473 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-18 18:43:23,473 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:43:23,473 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-18 18:43:23,474 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 18:43:23,904 INFO  L87              Difference]: Start difference. First operand  has 238599 states, 237762 states have (on average 4.615123526888233) internal successors, (1097301), 238598 states have internal predecessors, (1097301), 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) Second operand  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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)
[2022-04-18 18:43:27,271 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:43:27,272 INFO  L93              Difference]: Finished difference Result 222974 states and 835287 transitions.
[2022-04-18 18:43:27,272 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-04-18 18:43:27,272 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4
[2022-04-18 18:43:27,272 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:43:29,430 INFO  L225             Difference]: With dead ends: 222974
[2022-04-18 18:43:29,430 INFO  L226             Difference]: Without dead ends: 222589
[2022-04-18 18:43:29,431 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 18:43:29,431 INFO  L913         BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 18:43:29,432 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 18:43:30,260 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 222589 states.
[2022-04-18 18:43:36,524 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 222589 to 222589.
[2022-04-18 18:43:36,920 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 222589 states, 221976 states have (on average 3.7572260064151077) internal successors, (834014), 222588 states have internal predecessors, (834014), 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)
[2022-04-18 18:43:38,716 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 222589 states to 222589 states and 834014 transitions.
[2022-04-18 18:43:38,717 INFO  L78                 Accepts]: Start accepts. Automaton has 222589 states and 834014 transitions. Word has length 4
[2022-04-18 18:43:38,717 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:43:38,717 INFO  L478      AbstractCegarLoop]: Abstraction has 222589 states and 834014 transitions.
[2022-04-18 18:43:38,717 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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)
[2022-04-18 18:43:38,717 INFO  L276                IsEmpty]: Start isEmpty. Operand 222589 states and 834014 transitions.
[2022-04-18 18:43:38,717 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2022-04-18 18:43:38,718 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:43:38,718 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2022-04-18 18:43:38,718 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-04-18 18:43:38,718 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] ===
[2022-04-18 18:43:38,719 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:43:38,719 INFO  L85        PathProgramCache]: Analyzing trace with hash 1349803465, now seen corresponding path program 1 times
[2022-04-18 18:43:38,719 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:43:38,719 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079764916]
[2022-04-18 18:43:38,719 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:43:38,720 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:43:38,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:43:38,749 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:43:38,749 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:43:38,749 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079764916]
[2022-04-18 18:43:38,750 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079764916] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:43:38,750 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:43:38,750 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:43:38,750 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050586856]
[2022-04-18 18:43:38,750 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:43:38,750 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:43:38,751 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:43:38,751 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:43:38,751 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:43:38,751 INFO  L87              Difference]: Start difference. First operand 222589 states and 834014 transitions. Second operand  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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)
[2022-04-18 18:43:42,581 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:43:42,581 INFO  L93              Difference]: Finished difference Result 360728 states and 1300755 transitions.
[2022-04-18 18:43:42,581 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:43:42,581 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5
[2022-04-18 18:43:42,582 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:43:45,479 INFO  L225             Difference]: With dead ends: 360728
[2022-04-18 18:43:45,480 INFO  L226             Difference]: Without dead ends: 360608
[2022-04-18 18:43:45,480 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:43:45,481 INFO  L913         BasicCegarLoop]: 53 mSDtfsCounter, 70 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 18:43:45,481 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 74 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 18:43:46,215 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 360608 states.
[2022-04-18 18:43:55,136 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 360608 to 257666.
[2022-04-18 18:43:55,722 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 257666 states, 257092 states have (on average 3.6817753955782364) internal successors, (946555), 257665 states have internal predecessors, (946555), 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)
[2022-04-18 18:43:57,712 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 257666 states to 257666 states and 946555 transitions.
[2022-04-18 18:43:57,713 INFO  L78                 Accepts]: Start accepts. Automaton has 257666 states and 946555 transitions. Word has length 5
[2022-04-18 18:43:57,713 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:43:57,713 INFO  L478      AbstractCegarLoop]: Abstraction has 257666 states and 946555 transitions.
[2022-04-18 18:43:57,713 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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)
[2022-04-18 18:43:57,714 INFO  L276                IsEmpty]: Start isEmpty. Operand 257666 states and 946555 transitions.
[2022-04-18 18:43:57,715 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-04-18 18:43:57,715 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:43:57,715 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 18:43:57,715 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-04-18 18:43:57,715 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] ===
[2022-04-18 18:43:57,716 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:43:57,716 INFO  L85        PathProgramCache]: Analyzing trace with hash 1580681800, now seen corresponding path program 1 times
[2022-04-18 18:43:57,716 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:43:57,716 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122152627]
[2022-04-18 18:43:57,717 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:43:57,717 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:43:57,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:43:57,745 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:43:57,746 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:43:57,746 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122152627]
[2022-04-18 18:43:57,746 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122152627] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:43:57,746 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:43:57,746 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:43:57,746 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202520378]
[2022-04-18 18:43:57,746 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:43:57,746 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:43:57,746 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:43:57,747 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:43:57,747 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:43:57,747 INFO  L87              Difference]: Start difference. First operand 257666 states and 946555 transitions. Second operand  has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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)