./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_07-cond_racing2.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_07-cond_racing2.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 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-efd9311-m
[2022-04-18 18:42:00,935 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-18 18:42:00,937 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-18 18:42:00,979 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-18 18:42:00,980 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-18 18:42:00,982 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-18 18:42:00,985 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-18 18:42:00,987 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-18 18:42:00,989 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-18 18:42:00,994 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-18 18:42:00,995 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-04-18 18:42:00,996 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-18 18:42:00,996 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-18 18:42:00,998 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-18 18:42:00,999 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-18 18:42:01,003 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-18 18:42:01,003 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-18 18:42:01,004 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-18 18:42:01,006 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-18 18:42:01,007 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-18 18:42:01,011 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-18 18:42:01,013 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-18 18:42:01,014 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-18 18:42:01,014 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-18 18:42:01,016 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-18 18:42:01,019 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-18 18:42:01,019 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-18 18:42:01,020 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-18 18:42:01,021 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-18 18:42:01,021 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-18 18:42:01,022 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-18 18:42:01,022 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-18 18:42:01,024 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-18 18:42:01,024 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-18 18:42:01,025 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-18 18:42:01,026 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-18 18:42:01,026 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-18 18:42:01,026 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-18 18:42:01,027 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-18 18:42:01,027 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-18 18:42:01,027 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-18 18:42:01,029 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-18 18:42:01,030 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf
[2022-04-18 18:42:01,061 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-18 18:42:01,061 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-18 18:42:01,062 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-04-18 18:42:01,062 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-04-18 18:42:01,063 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-18 18:42:01,063 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-18 18:42:01,063 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-04-18 18:42:01,063 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-04-18 18:42:01,063 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-04-18 18:42:01,064 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-04-18 18:42:01,064 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-04-18 18:42:01,064 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-04-18 18:42:01,065 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-04-18 18:42:01,065 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-04-18 18:42:01,065 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-04-18 18:42:01,065 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-04-18 18:42:01,065 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-04-18 18:42:01,066 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-04-18 18:42:01,067 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-18 18:42:01,067 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-04-18 18:42:01,067 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-04-18 18:42:01,067 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-18 18:42:01,067 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-04-18 18:42:01,067 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-18 18:42:01,068 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-18 18:42:01,068 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-18 18:42:01,068 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-18 18:42:01,068 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2022-04-18 18:42:01,068 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-04-18 18:42:01,069 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-18 18:42:01,069 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-18 18:42:01,069 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-18 18:42:01,069 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-18 18:42:01,069 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-18 18:42:01,070 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 18:42:01,070 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-18 18:42:01,070 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-04-18 18:42:01,070 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-18 18:42:01,070 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-04-18 18:42:01,071 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-04-18 18:42:01,071 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-18 18:42:01,071 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-04-18 18:42:01,071 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-18 18:42:01,071 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 -> 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef
[2022-04-18 18:42:01,328 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-18 18:42:01,351 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-18 18:42:01,353 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-18 18:42:01,354 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-18 18:42:01,355 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-18 18:42:01,355 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i
[2022-04-18 18:42:01,418 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/78093d2d0/0c577fed19924a5bbbea78957e3da615/FLAG574a706da
[2022-04-18 18:42:01,929 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-18 18:42:01,930 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i
[2022-04-18 18:42:01,952 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/78093d2d0/0c577fed19924a5bbbea78957e3da615/FLAG574a706da
[2022-04-18 18:42:02,432 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/78093d2d0/0c577fed19924a5bbbea78957e3da615
[2022-04-18 18:42:02,433 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-18 18:42:02,435 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-04-18 18:42:02,440 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-18 18:42:02,440 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-18 18:42:02,443 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-18 18:42:02,443 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:42:02" (1/1) ...
[2022-04-18 18:42:02,444 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@576707a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02, skipping insertion in model container
[2022-04-18 18:42:02,444 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:42:02" (1/1) ...
[2022-04-18 18:42:02,450 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-18 18:42:02,502 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-18 18:42:02,864 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_07-cond_racing2.i[41322,41335]
[2022-04-18 18:42:02,887 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 18:42:02,897 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-18 18:42:02,936 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_07-cond_racing2.i[41322,41335]
[2022-04-18 18:42:02,943 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 18:42:02,987 INFO  L208         MainTranslator]: Completed translation
[2022-04-18 18:42:02,987 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02 WrapperNode
[2022-04-18 18:42:02,988 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-18 18:42:02,989 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-04-18 18:42:02,989 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-04-18 18:42:02,990 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-04-18 18:42:02,996 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02" (1/1) ...
[2022-04-18 18:42:03,025 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02" (1/1) ...
[2022-04-18 18:42:03,058 INFO  L137                Inliner]: procedures = 270, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99
[2022-04-18 18:42:03,058 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-04-18 18:42:03,059 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-18 18:42:03,060 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-18 18:42:03,060 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-18 18:42:03,066 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02" (1/1) ...
[2022-04-18 18:42:03,066 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02" (1/1) ...
[2022-04-18 18:42:03,084 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02" (1/1) ...
[2022-04-18 18:42:03,085 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02" (1/1) ...
[2022-04-18 18:42:03,091 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02" (1/1) ...
[2022-04-18 18:42:03,101 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02" (1/1) ...
[2022-04-18 18:42:03,104 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02" (1/1) ...
[2022-04-18 18:42:03,113 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-18 18:42:03,113 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-18 18:42:03,114 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-18 18:42:03,114 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-18 18:42:03,120 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02" (1/1) ...
[2022-04-18 18:42:03,127 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 18:42:03,136 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 18:42:03,152 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 18:42:03,175 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 18:42:03,201 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-04-18 18:42:03,201 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-18 18:42:03,201 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-18 18:42:03,201 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-18 18:42:03,201 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2022-04-18 18:42:03,201 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-18 18:42:03,201 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2022-04-18 18:42:03,202 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2022-04-18 18:42:03,202 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-18 18:42:03,202 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-18 18:42:03,202 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-18 18:42:03,203 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 18:42:03,363 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-18 18:42:03,365 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-18 18:42:03,615 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-18 18:42:03,622 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-18 18:42:03,622 INFO  L299             CfgBuilder]: Removed 10 assume(true) statements.
[2022-04-18 18:42:03,624 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:42:03 BoogieIcfgContainer
[2022-04-18 18:42:03,626 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-18 18:42:03,628 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-18 18:42:03,629 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-18 18:42:03,632 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-18 18:42:03,632 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:42:02" (1/3) ...
[2022-04-18 18:42:03,633 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48dbe6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:42:03, skipping insertion in model container
[2022-04-18 18:42:03,633 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:42:02" (2/3) ...
[2022-04-18 18:42:03,633 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48dbe6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:42:03, skipping insertion in model container
[2022-04-18 18:42:03,633 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:42:03" (3/3) ...
[2022-04-18 18:42:03,635 INFO  L111   eAbstractionObserver]: Analyzing ICFG 28-race_reach_07-cond_racing2.i
[2022-04-18 18:42:03,641 WARN  L147   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-04-18 18:42:03,641 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-18 18:42:03,642 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2022-04-18 18:42:03,642 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-04-18 18:42:03,719 INFO  L135    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2022-04-18 18:42:03,773 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 18:42:03,780 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 18:42:03,781 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 11 error locations.
[2022-04-18 18:42:03,795 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 18:42:03,805 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 153 transitions, 314 flow
[2022-04-18 18:42:03,807 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 153 transitions, 314 flow
[2022-04-18 18:42:03,809 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 141 places, 153 transitions, 314 flow
[2022-04-18 18:42:03,903 INFO  L129       PetriNetUnfolder]: 23/206 cut-off events.
[2022-04-18 18:42:03,904 INFO  L130       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2022-04-18 18:42:03,908 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 212 conditions, 206 events. 23/206 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 571 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 102. Up to 6 conditions per place. 
[2022-04-18 18:42:03,914 INFO  L116        LiptonReduction]: Number of co-enabled transitions 5192
[2022-04-18 18:42:08,209 INFO  L131        LiptonReduction]: Checked pairs total: 12328
[2022-04-18 18:42:08,210 INFO  L133        LiptonReduction]: Total number of compositions: 146
[2022-04-18 18:42:08,216 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 47 transitions, 102 flow
[2022-04-18 18:42:08,247 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 335 states, 308 states have (on average 2.529220779220779) internal successors, (779), 334 states have internal predecessors, (779), 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 18:42:08,250 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 335 states, 308 states have (on average 2.529220779220779) internal successors, (779), 334 states have internal predecessors, (779), 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 18:42:08,254 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-04-18 18:42:08,254 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:42:08,255 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-04-18 18:42:08,255 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 18:42:08,259 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:42:08,259 INFO  L85        PathProgramCache]: Analyzing trace with hash 18147078, now seen corresponding path program 1 times
[2022-04-18 18:42:08,265 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:42:08,265 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255786706]
[2022-04-18 18:42:08,265 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:42:08,266 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:42:08,374 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:42:08,452 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 18:42:08,453 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:42:08,453 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255786706]
[2022-04-18 18:42:08,453 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255786706] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:42:08,454 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:42:08,454 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:42:08,455 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177658516]
[2022-04-18 18:42:08,455 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:42:08,459 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:42:08,459 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:42:08,476 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:42:08,477 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:42:08,480 INFO  L87              Difference]: Start difference. First operand  has 335 states, 308 states have (on average 2.529220779220779) internal successors, (779), 334 states have internal predecessors, (779), 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 3 states, 3 states have (on average 1.3333333333333333) 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 18:42:08,573 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:42:08,573 INFO  L93              Difference]: Finished difference Result 276 states and 531 transitions.
[2022-04-18 18:42:08,575 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:42:08,576 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1.3333333333333333) 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 18:42:08,576 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:42:08,588 INFO  L225             Difference]: With dead ends: 276
[2022-04-18 18:42:08,588 INFO  L226             Difference]: Without dead ends: 252
[2022-04-18 18:42:08,589 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 18:42:08,592 INFO  L913         BasicCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 18:42:08,594 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 20 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 18:42:08,605 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 252 states.
[2022-04-18 18:42:08,629 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252.
[2022-04-18 18:42:08,630 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 252 states, 242 states have (on average 1.9958677685950412) internal successors, (483), 251 states have internal predecessors, (483), 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 18:42:08,632 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 483 transitions.
[2022-04-18 18:42:08,633 INFO  L78                 Accepts]: Start accepts. Automaton has 252 states and 483 transitions. Word has length 4
[2022-04-18 18:42:08,633 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:42:08,633 INFO  L478      AbstractCegarLoop]: Abstraction has 252 states and 483 transitions.
[2022-04-18 18:42:08,633 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1.3333333333333333) 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 18:42:08,633 INFO  L276                IsEmpty]: Start isEmpty. Operand 252 states and 483 transitions.
[2022-04-18 18:42:08,634 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-04-18 18:42:08,634 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:42:08,634 INFO  L499         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1]
[2022-04-18 18:42:08,634 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-18 18:42:08,635 INFO  L403      AbstractCegarLoop]: === Iteration 2 === 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 18:42:08,635 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:42:08,635 INFO  L85        PathProgramCache]: Analyzing trace with hash 241395879, now seen corresponding path program 1 times
[2022-04-18 18:42:08,636 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:42:08,636 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793300826]
[2022-04-18 18:42:08,636 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:42:08,636 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:42:08,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 18:42:08,659 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-18 18:42:08,678 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 18:42:08,699 INFO  L130   FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-04-18 18:42:08,699 INFO  L618         BasicCegarLoop]: Counterexample is feasible
[2022-04-18 18:42:08,700 INFO  L788   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining)
[2022-04-18 18:42:08,702 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining)
[2022-04-18 18:42:08,703 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining)
[2022-04-18 18:42:08,703 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining)
[2022-04-18 18:42:08,703 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining)
[2022-04-18 18:42:08,704 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining)
[2022-04-18 18:42:08,704 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining)
[2022-04-18 18:42:08,709 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining)
[2022-04-18 18:42:08,709 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining)
[2022-04-18 18:42:08,709 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining)
[2022-04-18 18:42:08,709 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining)
[2022-04-18 18:42:08,710 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-04-18 18:42:08,712 INFO  L719         BasicCegarLoop]: Path program histogram: [1, 1]
[2022-04-18 18:42:08,713 WARN  L232   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-04-18 18:42:08,713 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2022-04-18 18:42:08,739 INFO  L135    ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2022-04-18 18:42:08,747 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 18:42:08,750 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 18:42:08,751 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 15 error locations.
[2022-04-18 18:42:08,753 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 18:42:08,754 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 182 places, 199 transitions, 416 flow
[2022-04-18 18:42:08,754 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 182 places, 199 transitions, 416 flow
[2022-04-18 18:42:08,754 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 182 places, 199 transitions, 416 flow
[2022-04-18 18:42:08,803 INFO  L129       PetriNetUnfolder]: 40/336 cut-off events.
[2022-04-18 18:42:08,803 INFO  L130       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2022-04-18 18:42:08,807 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 350 conditions, 336 events. 40/336 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1146 event pairs, 0 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 208. Up to 9 conditions per place. 
[2022-04-18 18:42:08,821 INFO  L116        LiptonReduction]: Number of co-enabled transitions 15224
[2022-04-18 18:42:12,954 INFO  L131        LiptonReduction]: Checked pairs total: 61152
[2022-04-18 18:42:12,954 INFO  L133        LiptonReduction]: Total number of compositions: 170
[2022-04-18 18:42:12,957 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 85 transitions, 188 flow
[2022-04-18 18:42:13,312 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 10384 states, 10232 states have (on average 3.576817826426896) internal successors, (36598), 10383 states have internal predecessors, (36598), 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 18:42:13,352 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10384 states, 10232 states have (on average 3.576817826426896) internal successors, (36598), 10383 states have internal predecessors, (36598), 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 18:42:13,353 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-04-18 18:42:13,353 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:42:13,353 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-04-18 18:42:13,354 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 18:42:13,355 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:42:13,355 INFO  L85        PathProgramCache]: Analyzing trace with hash 30670147, now seen corresponding path program 1 times
[2022-04-18 18:42:13,355 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:42:13,355 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597489660]
[2022-04-18 18:42:13,356 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:42:13,356 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:42:13,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:42:13,411 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 18:42:13,412 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:42:13,412 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597489660]
[2022-04-18 18:42:13,412 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597489660] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:42:13,412 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:42:13,412 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:42:13,413 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056357227]
[2022-04-18 18:42:13,413 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:42:13,413 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:42:13,413 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:42:13,414 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:42:13,414 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:42:13,439 INFO  L87              Difference]: Start difference. First operand  has 10384 states, 10232 states have (on average 3.576817826426896) internal successors, (36598), 10383 states have internal predecessors, (36598), 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 3 states, 3 states have (on average 1.3333333333333333) 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 18:42:13,662 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:42:13,662 INFO  L93              Difference]: Finished difference Result 9751 states and 27970 transitions.
[2022-04-18 18:42:13,662 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:42:13,663 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1.3333333333333333) 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 18:42:13,663 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:42:13,727 INFO  L225             Difference]: With dead ends: 9751
[2022-04-18 18:42:13,727 INFO  L226             Difference]: Without dead ends: 9642
[2022-04-18 18:42:13,728 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 18:42:13,733 INFO  L913         BasicCegarLoop]: 33 mSDtfsCounter, 26 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 18:42:13,736 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 66 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 18:42:13,762 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9642 states.
[2022-04-18 18:42:14,054 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9642 to 9642.
[2022-04-18 18:42:14,069 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9642 states, 9531 states have (on average 2.9038925611163573) internal successors, (27677), 9641 states have internal predecessors, (27677), 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 18:42:14,110 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9642 states to 9642 states and 27677 transitions.
[2022-04-18 18:42:14,111 INFO  L78                 Accepts]: Start accepts. Automaton has 9642 states and 27677 transitions. Word has length 4
[2022-04-18 18:42:14,111 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:42:14,111 INFO  L478      AbstractCegarLoop]: Abstraction has 9642 states and 27677 transitions.
[2022-04-18 18:42:14,111 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1.3333333333333333) 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 18:42:14,111 INFO  L276                IsEmpty]: Start isEmpty. Operand 9642 states and 27677 transitions.
[2022-04-18 18:42:14,112 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2022-04-18 18:42:14,112 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:42:14,112 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 18:42:14,112 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-04-18 18:42:14,113 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] ===
[2022-04-18 18:42:14,113 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:42:14,113 INFO  L85        PathProgramCache]: Analyzing trace with hash 517199379, now seen corresponding path program 1 times
[2022-04-18 18:42:14,113 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:42:14,114 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043345059]
[2022-04-18 18:42:14,114 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:42:14,114 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:42:14,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:42:14,143 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 18:42:14,143 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:42:14,144 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043345059]
[2022-04-18 18:42:14,144 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043345059] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:42:14,144 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:42:14,144 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:42:14,144 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143673922]
[2022-04-18 18:42:14,144 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:42:14,145 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:42:14,145 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:42:14,145 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:42:14,145 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:42:14,145 INFO  L87              Difference]: Start difference. First operand 9642 states and 27677 transitions. Second operand  has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 18:42:14,405 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:42:14,405 INFO  L93              Difference]: Finished difference Result 13305 states and 36904 transitions.
[2022-04-18 18:42:14,406 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:42:14,406 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8
[2022-04-18 18:42:14,406 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:42:14,518 INFO  L225             Difference]: With dead ends: 13305
[2022-04-18 18:42:14,518 INFO  L226             Difference]: Without dead ends: 13269
[2022-04-18 18:42:14,519 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 18:42:14,519 INFO  L913         BasicCegarLoop]: 38 mSDtfsCounter, 53 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 18:42:14,520 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 53 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 18:42:14,550 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13269 states.
[2022-04-18 18:42:15,085 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13269 to 9944.
[2022-04-18 18:42:15,117 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9944 states, 9851 states have (on average 2.8457009440665924) internal successors, (28033), 9943 states have internal predecessors, (28033), 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 18:42:15,164 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9944 states to 9944 states and 28033 transitions.
[2022-04-18 18:42:15,164 INFO  L78                 Accepts]: Start accepts. Automaton has 9944 states and 28033 transitions. Word has length 8
[2022-04-18 18:42:15,165 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:42:15,165 INFO  L478      AbstractCegarLoop]: Abstraction has 9944 states and 28033 transitions.
[2022-04-18 18:42:15,165 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 18:42:15,165 INFO  L276                IsEmpty]: Start isEmpty. Operand 9944 states and 28033 transitions.
[2022-04-18 18:42:15,166 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-18 18:42:15,167 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:42:15,167 INFO  L499         BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2022-04-18 18:42:15,167 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-04-18 18:42:15,167 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 18:42:15,168 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:42:15,168 INFO  L85        PathProgramCache]: Analyzing trace with hash -1848586143, now seen corresponding path program 1 times
[2022-04-18 18:42:15,170 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:42:15,171 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533751776]
[2022-04-18 18:42:15,171 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:42:15,171 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:42:15,196 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 18:42:15,197 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-18 18:42:15,207 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 18:42:15,212 INFO  L130   FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-04-18 18:42:15,213 INFO  L618         BasicCegarLoop]: Counterexample is feasible
[2022-04-18 18:42:15,213 INFO  L788   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining)
[2022-04-18 18:42:15,213 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining)
[2022-04-18 18:42:15,213 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining)
[2022-04-18 18:42:15,214 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining)
[2022-04-18 18:42:15,214 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining)
[2022-04-18 18:42:15,214 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining)
[2022-04-18 18:42:15,214 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining)
[2022-04-18 18:42:15,214 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining)
[2022-04-18 18:42:15,215 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining)
[2022-04-18 18:42:15,215 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining)
[2022-04-18 18:42:15,215 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining)
[2022-04-18 18:42:15,215 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining)
[2022-04-18 18:42:15,215 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining)
[2022-04-18 18:42:15,215 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining)
[2022-04-18 18:42:15,216 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining)
[2022-04-18 18:42:15,216 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-04-18 18:42:15,216 INFO  L719         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2022-04-18 18:42:15,216 WARN  L232   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-04-18 18:42:15,217 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2022-04-18 18:42:15,230 INFO  L135    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2022-04-18 18:42:15,231 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 18:42:15,232 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 18:42:15,232 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 19 error locations.
[2022-04-18 18:42:15,234 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 18:42:15,234 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 223 places, 245 transitions, 520 flow
[2022-04-18 18:42:15,234 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 223 places, 245 transitions, 520 flow
[2022-04-18 18:42:15,235 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 223 places, 245 transitions, 520 flow
[2022-04-18 18:42:15,355 INFO  L129       PetriNetUnfolder]: 62/511 cut-off events.
[2022-04-18 18:42:15,355 INFO  L130       PetriNetUnfolder]: For 19/19 co-relation queries the response was YES.
[2022-04-18 18:42:15,360 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 539 conditions, 511 events. 62/511 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1923 event pairs, 1 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 344. Up to 16 conditions per place. 
[2022-04-18 18:42:15,381 INFO  L116        LiptonReduction]: Number of co-enabled transitions 29040
[2022-04-18 18:42:20,026 INFO  L131        LiptonReduction]: Checked pairs total: 131645
[2022-04-18 18:42:20,026 INFO  L133        LiptonReduction]: Total number of compositions: 205
[2022-04-18 18:42:20,027 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 98 places, 115 transitions, 260 flow
[2022-04-18 18:42:27,359 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 253024 states, 252187 states have (on average 4.669883856027472) internal successors, (1177684), 253023 states have internal predecessors, (1177684), 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 18:42:27,926 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 253024 states, 252187 states have (on average 4.669883856027472) internal successors, (1177684), 253023 states have internal predecessors, (1177684), 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 18:42:27,926 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-04-18 18:42:27,927 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:42:27,927 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-04-18 18:42:27,927 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 18:42:27,928 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:42:27,929 INFO  L85        PathProgramCache]: Analyzing trace with hash 45683411, now seen corresponding path program 1 times
[2022-04-18 18:42:27,929 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:42:27,929 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61300394]
[2022-04-18 18:42:27,929 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:42:27,929 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:42:27,951 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:42:27,974 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 18:42:27,974 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:42:27,975 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61300394]
[2022-04-18 18:42:27,975 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61300394] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:42:27,975 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:42:27,975 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:42:27,975 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893059706]
[2022-04-18 18:42:27,975 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:42:27,976 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:42:27,976 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:42:27,977 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:42:27,977 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:42:28,463 INFO  L87              Difference]: Start difference. First operand  has 253024 states, 252187 states have (on average 4.669883856027472) internal successors, (1177684), 253023 states have internal predecessors, (1177684), 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 3 states, 3 states have (on average 1.3333333333333333) 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 18:42:32,664 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:42:32,664 INFO  L93              Difference]: Finished difference Result 237391 states and 904998 transitions.
[2022-04-18 18:42:32,665 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:42:32,665 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1.3333333333333333) 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 18:42:32,665 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:42:35,275 INFO  L225             Difference]: With dead ends: 237391
[2022-04-18 18:42:35,275 INFO  L226             Difference]: Without dead ends: 236970
[2022-04-18 18:42:35,278 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 18:42:35,279 INFO  L913         BasicCegarLoop]: 44 mSDtfsCounter, 26 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 18:42:35,280 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 88 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 18:42:36,389 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 236970 states.
[2022-04-18 18:42:43,832 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 236970 to 236970.
[2022-04-18 18:42:44,369 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 236970 states, 236358 states have (on average 3.822798466732668) internal successors, (903549), 236969 states have internal predecessors, (903549), 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 18:42:47,277 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 236970 states to 236970 states and 903549 transitions.
[2022-04-18 18:42:47,278 INFO  L78                 Accepts]: Start accepts. Automaton has 236970 states and 903549 transitions. Word has length 4
[2022-04-18 18:42:47,278 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:42:47,278 INFO  L478      AbstractCegarLoop]: Abstraction has 236970 states and 903549 transitions.
[2022-04-18 18:42:47,278 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1.3333333333333333) 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 18:42:47,278 INFO  L276                IsEmpty]: Start isEmpty. Operand 236970 states and 903549 transitions.
[2022-04-18 18:42:47,278 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2022-04-18 18:42:47,279 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:42:47,279 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 18:42:47,279 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-04-18 18:42:47,279 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] ===
[2022-04-18 18:42:47,279 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:42:47,279 INFO  L85        PathProgramCache]: Analyzing trace with hash -233848402, now seen corresponding path program 1 times
[2022-04-18 18:42:47,280 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:42:47,280 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145070393]
[2022-04-18 18:42:47,280 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:42:47,280 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:42:47,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:42:47,315 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 18:42:47,315 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:42:47,315 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145070393]
[2022-04-18 18:42:47,315 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145070393] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:42:47,316 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:42:47,316 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:42:47,316 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822185688]
[2022-04-18 18:42:47,316 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:42:47,316 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:42:47,317 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:42:47,317 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:42:47,317 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:42:47,317 INFO  L87              Difference]: Start difference. First operand 236970 states and 903549 transitions. Second operand  has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 18:42:51,477 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:42:51,477 INFO  L93              Difference]: Finished difference Result 382136 states and 1402517 transitions.
[2022-04-18 18:42:51,477 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:42:51,477 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8
[2022-04-18 18:42:51,478 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:42:54,986 INFO  L225             Difference]: With dead ends: 382136
[2022-04-18 18:42:54,986 INFO  L226             Difference]: Without dead ends: 382019
[2022-04-18 18:42:54,987 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 18:42:54,987 INFO  L913         BasicCegarLoop]: 51 mSDtfsCounter, 72 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 18:42:54,989 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 69 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 18:42:55,893 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 382019 states.
[2022-04-18 18:43:05,969 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 382019 to 273725.
[2022-04-18 18:43:06,475 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 273725 states, 273151 states have (on average 3.7464699012634037) internal successors, (1023352), 273724 states have internal predecessors, (1023352), 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)