./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.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/pthread-ext/08_rand_cas.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 adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-efd9311-m
[2022-04-18 19:03:42,447 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-18 19:03:42,448 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-18 19:03:42,465 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-18 19:03:42,465 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-18 19:03:42,466 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-18 19:03:42,467 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-18 19:03:42,468 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-18 19:03:42,469 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-18 19:03:42,470 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-18 19:03:42,471 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-04-18 19:03:42,471 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-18 19:03:42,472 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-18 19:03:42,472 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-18 19:03:42,473 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-18 19:03:42,474 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-18 19:03:42,474 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-18 19:03:42,475 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-18 19:03:42,476 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-18 19:03:42,477 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-18 19:03:42,478 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-18 19:03:42,478 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-18 19:03:42,479 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-18 19:03:42,480 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-18 19:03:42,480 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-18 19:03:42,482 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-18 19:03:42,482 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-18 19:03:42,483 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-18 19:03:42,483 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-18 19:03:42,483 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-18 19:03:42,484 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-18 19:03:42,484 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-18 19:03:42,485 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-18 19:03:42,485 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-18 19:03:42,486 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-18 19:03:42,486 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-18 19:03:42,487 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-18 19:03:42,487 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-18 19:03:42,487 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-18 19:03:42,488 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-18 19:03:42,488 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-18 19:03:42,492 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-18 19:03:42,492 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf
[2022-04-18 19:03:42,505 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-18 19:03:42,506 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-18 19:03:42,506 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-04-18 19:03:42,506 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-04-18 19:03:42,507 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-18 19:03:42,507 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-18 19:03:42,507 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-04-18 19:03:42,507 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-04-18 19:03:42,507 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-04-18 19:03:42,507 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-04-18 19:03:42,508 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-04-18 19:03:42,508 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-04-18 19:03:42,508 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-04-18 19:03:42,508 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-04-18 19:03:42,508 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-04-18 19:03:42,508 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-04-18 19:03:42,508 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-04-18 19:03:42,509 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-04-18 19:03:42,509 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-18 19:03:42,509 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-04-18 19:03:42,509 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-04-18 19:03:42,510 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-18 19:03:42,510 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-04-18 19:03:42,510 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-18 19:03:42,510 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-18 19:03:42,510 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-18 19:03:42,510 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-18 19:03:42,510 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2022-04-18 19:03:42,511 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-04-18 19:03:42,511 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-18 19:03:42,511 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-18 19:03:42,511 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-18 19:03:42,511 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-18 19:03:42,511 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-18 19:03:42,511 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 19:03:42,512 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-18 19:03:42,512 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-04-18 19:03:42,512 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-18 19:03:42,512 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-04-18 19:03:42,512 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-04-18 19:03:42,512 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-18 19:03:42,513 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-04-18 19:03:42,513 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-18 19:03:42,513 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 -> adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376
[2022-04-18 19:03:42,654 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-18 19:03:42,667 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-18 19:03:42,669 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-18 19:03:42,670 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-18 19:03:42,670 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-18 19:03:42,671 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i
[2022-04-18 19:03:42,712 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b5e1222c5/6e34f693a36548b7b79a3caf4016d2ed/FLAG0fc2f9a7e
[2022-04-18 19:03:43,093 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-18 19:03:43,094 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i
[2022-04-18 19:03:43,102 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b5e1222c5/6e34f693a36548b7b79a3caf4016d2ed/FLAG0fc2f9a7e
[2022-04-18 19:03:43,487 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b5e1222c5/6e34f693a36548b7b79a3caf4016d2ed
[2022-04-18 19:03:43,504 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-18 19:03:43,505 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-04-18 19:03:43,506 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-18 19:03:43,508 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-18 19:03:43,510 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-18 19:03:43,511 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:03:43" (1/1) ...
[2022-04-18 19:03:43,512 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14f38f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43, skipping insertion in model container
[2022-04-18 19:03:43,512 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:03:43" (1/1) ...
[2022-04-18 19:03:43,517 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-18 19:03:43,554 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-18 19:03:43,826 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[30697,30710]
[2022-04-18 19:03:43,830 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[30970,30983]
[2022-04-18 19:03:43,831 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[31233,31246]
[2022-04-18 19:03:43,837 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 19:03:43,841 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-18 19:03:43,870 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[30697,30710]
[2022-04-18 19:03:43,872 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[30970,30983]
[2022-04-18 19:03:43,877 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[31233,31246]
[2022-04-18 19:03:43,879 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 19:03:43,907 INFO  L208         MainTranslator]: Completed translation
[2022-04-18 19:03:43,907 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43 WrapperNode
[2022-04-18 19:03:43,907 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-18 19:03:43,908 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-04-18 19:03:43,908 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-04-18 19:03:43,908 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-04-18 19:03:43,912 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ...
[2022-04-18 19:03:43,922 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ...
[2022-04-18 19:03:43,946 INFO  L137                Inliner]: procedures = 176, calls = 34, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 213
[2022-04-18 19:03:43,949 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-04-18 19:03:43,965 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-18 19:03:43,965 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-18 19:03:43,966 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-18 19:03:43,971 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ...
[2022-04-18 19:03:43,971 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ...
[2022-04-18 19:03:43,975 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ...
[2022-04-18 19:03:43,975 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ...
[2022-04-18 19:03:43,983 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ...
[2022-04-18 19:03:43,986 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ...
[2022-04-18 19:03:43,994 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ...
[2022-04-18 19:03:43,996 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-18 19:03:43,997 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-18 19:03:43,997 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-18 19:03:43,997 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-18 19:03:43,998 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ...
[2022-04-18 19:03:44,002 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 19:03:44,011 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 19:03:44,019 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 19:03:44,041 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-18 19:03:44,041 INFO  L130     BoogieDeclarations]: Found specification of procedure thr1
[2022-04-18 19:03:44,042 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr1
[2022-04-18 19:03:44,042 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-18 19:03:44,042 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-18 19:03:44,042 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-04-18 19:03:44,042 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-18 19:03:44,042 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-18 19:03:44,042 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-18 19:03:44,042 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-18 19:03:44,043 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 19:03:44,024 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 19:03:44,118 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-18 19:03:44,119 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-18 19:03:44,361 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-18 19:03:44,511 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-18 19:03:44,511 INFO  L299             CfgBuilder]: Removed 4 assume(true) statements.
[2022-04-18 19:03:44,513 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:03:44 BoogieIcfgContainer
[2022-04-18 19:03:44,513 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-18 19:03:44,515 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-18 19:03:44,515 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-18 19:03:44,517 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-18 19:03:44,518 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:03:43" (1/3) ...
[2022-04-18 19:03:44,518 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6b9ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:03:44, skipping insertion in model container
[2022-04-18 19:03:44,518 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (2/3) ...
[2022-04-18 19:03:44,519 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6b9ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:03:44, skipping insertion in model container
[2022-04-18 19:03:44,519 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:03:44" (3/3) ...
[2022-04-18 19:03:44,520 INFO  L111   eAbstractionObserver]: Analyzing ICFG 08_rand_cas.i
[2022-04-18 19:03:44,524 WARN  L147   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-04-18 19:03:44,524 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-18 19:03:44,524 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations.
[2022-04-18 19:03:44,524 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-04-18 19:03:44,589 INFO  L135    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-04-18 19:03:44,630 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 19:03:44,634 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 19:03:44,634 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 33 error locations.
[2022-04-18 19:03:44,642 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 19:03:44,649 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 170 transitions, 345 flow
[2022-04-18 19:03:44,650 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 170 transitions, 345 flow
[2022-04-18 19:03:44,651 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 160 places, 170 transitions, 345 flow
[2022-04-18 19:03:44,685 INFO  L129       PetriNetUnfolder]: 14/181 cut-off events.
[2022-04-18 19:03:44,685 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-04-18 19:03:44,691 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 186 conditions, 181 events. 14/181 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 301 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 150. Up to 4 conditions per place. 
[2022-04-18 19:03:44,694 INFO  L116        LiptonReduction]: Number of co-enabled transitions 3836
[2022-04-18 19:04:03,800 INFO  L131        LiptonReduction]: Checked pairs total: 4125
[2022-04-18 19:04:03,800 INFO  L133        LiptonReduction]: Total number of compositions: 205
[2022-04-18 19:04:03,806 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 33 transitions, 71 flow
[2022-04-18 19:04:03,831 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 112 states, 79 states have (on average 2.7974683544303796) internal successors, (221), 111 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 19:04:03,841 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 112 states, 79 states have (on average 2.7974683544303796) internal successors, (221), 111 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 19:04:03,844 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-04-18 19:04:03,844 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:04:03,845 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-04-18 19:04:03,845 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] ===
[2022-04-18 19:04:03,849 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:04:03,849 INFO  L85        PathProgramCache]: Analyzing trace with hash 30148089, now seen corresponding path program 1 times
[2022-04-18 19:04:03,855 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:04:03,855 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903182219]
[2022-04-18 19:04:03,856 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:04:03,856 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:04:03,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 19:04:04,012 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 19:04:04,013 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 19:04:04,013 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903182219]
[2022-04-18 19:04:04,014 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903182219] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 19:04:04,014 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 19:04:04,014 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2022-04-18 19:04:04,015 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272430189]
[2022-04-18 19:04:04,016 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 19:04:04,018 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-18 19:04:04,018 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 19:04:04,036 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-18 19:04:04,037 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 19:04:04,038 INFO  L87              Difference]: Start difference. First operand  has 112 states, 79 states have (on average 2.7974683544303796) internal successors, (221), 111 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 2 states, 1 states have (on average 4.0) 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 19:04:04,097 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 19:04:04,098 INFO  L93              Difference]: Finished difference Result 27 states and 57 transitions.
[2022-04-18 19:04:04,099 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-04-18 19:04:04,099 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 1 states have (on average 4.0) 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 19:04:04,100 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 19:04:04,104 INFO  L225             Difference]: With dead ends: 27
[2022-04-18 19:04:04,104 INFO  L226             Difference]: Without dead ends: 27
[2022-04-18 19:04:04,105 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 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 19:04:04,107 INFO  L913         BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 19:04:04,107 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 19:04:04,118 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2022-04-18 19:04:04,125 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2022-04-18 19:04:04,125 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27 states, 26 states have (on average 2.1923076923076925) internal successors, (57), 26 states have internal predecessors, (57), 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 19:04:04,126 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 57 transitions.
[2022-04-18 19:04:04,127 INFO  L78                 Accepts]: Start accepts. Automaton has 27 states and 57 transitions. Word has length 4
[2022-04-18 19:04:04,127 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 19:04:04,127 INFO  L478      AbstractCegarLoop]: Abstraction has 27 states and 57 transitions.
[2022-04-18 19:04:04,128 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 1 states have (on average 4.0) 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 19:04:04,128 INFO  L276                IsEmpty]: Start isEmpty. Operand 27 states and 57 transitions.
[2022-04-18 19:04:04,128 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-04-18 19:04:04,128 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:04:04,128 INFO  L499         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1]
[2022-04-18 19:04:04,129 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-18 19:04:04,129 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] ===
[2022-04-18 19:04:04,129 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:04:04,129 INFO  L85        PathProgramCache]: Analyzing trace with hash -1092577713, now seen corresponding path program 1 times
[2022-04-18 19:04:04,130 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:04:04,130 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825802292]
[2022-04-18 19:04:04,130 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:04:04,130 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:04:04,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 19:04:04,161 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-18 19:04:04,178 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 19:04:04,190 INFO  L130   FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-04-18 19:04:04,191 INFO  L618         BasicCegarLoop]: Counterexample is feasible
[2022-04-18 19:04:04,192 INFO  L788   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining)
[2022-04-18 19:04:04,193 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining)
[2022-04-18 19:04:04,193 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining)
[2022-04-18 19:04:04,193 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining)
[2022-04-18 19:04:04,193 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining)
[2022-04-18 19:04:04,194 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining)
[2022-04-18 19:04:04,194 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining)
[2022-04-18 19:04:04,194 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining)
[2022-04-18 19:04:04,194 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining)
[2022-04-18 19:04:04,194 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining)
[2022-04-18 19:04:04,195 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining)
[2022-04-18 19:04:04,195 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining)
[2022-04-18 19:04:04,195 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining)
[2022-04-18 19:04:04,195 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining)
[2022-04-18 19:04:04,195 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining)
[2022-04-18 19:04:04,195 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining)
[2022-04-18 19:04:04,196 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining)
[2022-04-18 19:04:04,196 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining)
[2022-04-18 19:04:04,196 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining)
[2022-04-18 19:04:04,196 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining)
[2022-04-18 19:04:04,196 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining)
[2022-04-18 19:04:04,197 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining)
[2022-04-18 19:04:04,197 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining)
[2022-04-18 19:04:04,197 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining)
[2022-04-18 19:04:04,197 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining)
[2022-04-18 19:04:04,197 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining)
[2022-04-18 19:04:04,197 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining)
[2022-04-18 19:04:04,198 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining)
[2022-04-18 19:04:04,198 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining)
[2022-04-18 19:04:04,198 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining)
[2022-04-18 19:04:04,198 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining)
[2022-04-18 19:04:04,198 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining)
[2022-04-18 19:04:04,199 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining)
[2022-04-18 19:04:04,199 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-04-18 19:04:04,200 INFO  L719         BasicCegarLoop]: Path program histogram: [1, 1]
[2022-04-18 19:04:04,201 WARN  L232   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-04-18 19:04:04,201 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2022-04-18 19:04:04,230 INFO  L135    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-04-18 19:04:04,232 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 19:04:04,232 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 19:04:04,232 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 49 error locations.
[2022-04-18 19:04:04,234 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 19:04:04,235 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 288 places, 308 transitions, 628 flow
[2022-04-18 19:04:04,235 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 288 places, 308 transitions, 628 flow
[2022-04-18 19:04:04,235 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 288 places, 308 transitions, 628 flow
[2022-04-18 19:04:04,279 INFO  L129       PetriNetUnfolder]: 27/332 cut-off events.
[2022-04-18 19:04:04,282 INFO  L130       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2022-04-18 19:04:04,286 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 342 conditions, 332 events. 27/332 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1068 event pairs, 0 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 287. Up to 6 conditions per place. 
[2022-04-18 19:04:04,304 INFO  L116        LiptonReduction]: Number of co-enabled transitions 45484
[2022-04-18 19:04:27,156 WARN  L232               SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 118 DAG size of output: 103 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:04:48,469 WARN  L232               SmtUtils]: Spent 6.85s on a formula simplification. DAG size of input: 126 DAG size of output: 111 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:05:05,865 WARN  L232               SmtUtils]: Spent 5.43s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:05:18,435 WARN  L232               SmtUtils]: Spent 12.57s on a formula simplification. DAG size of input: 125 DAG size of output: 123 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:05:26,682 WARN  L232               SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:05:57,323 WARN  L232               SmtUtils]: Spent 9.58s on a formula simplification. DAG size of input: 114 DAG size of output: 111 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:06:04,050 WARN  L232               SmtUtils]: Spent 6.73s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:06:20,337 WARN  L232               SmtUtils]: Spent 16.29s on a formula simplification. DAG size of input: 130 DAG size of output: 125 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:06:28,677 WARN  L232               SmtUtils]: Spent 8.34s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:06:59,921 INFO  L131        LiptonReduction]: Checked pairs total: 203903
[2022-04-18 19:06:59,922 INFO  L133        LiptonReduction]: Total number of compositions: 327
[2022-04-18 19:06:59,923 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 116 places, 123 transitions, 258 flow
[2022-04-18 19:07:00,273 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 16793 states, 16200 states have (on average 3.118456790123457) internal successors, (50519), 16792 states have internal predecessors, (50519), 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 19:07:00,351 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 16793 states, 16200 states have (on average 3.118456790123457) internal successors, (50519), 16792 states have internal predecessors, (50519), 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 19:07:00,353 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-04-18 19:07:00,354 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:07:00,354 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-04-18 19:07:00,354 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] ===
[2022-04-18 19:07:00,356 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:07:00,356 INFO  L85        PathProgramCache]: Analyzing trace with hash 52869757, now seen corresponding path program 1 times
[2022-04-18 19:07:00,356 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:07:00,357 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242328223]
[2022-04-18 19:07:00,357 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:07:00,357 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:07:00,382 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 19:07:00,404 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 19:07:00,404 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 19:07:00,404 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242328223]
[2022-04-18 19:07:00,405 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242328223] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 19:07:00,405 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 19:07:00,405 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2022-04-18 19:07:00,405 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918691759]
[2022-04-18 19:07:00,406 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 19:07:00,406 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-18 19:07:00,407 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 19:07:00,407 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-18 19:07:00,407 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 19:07:00,436 INFO  L87              Difference]: Start difference. First operand  has 16793 states, 16200 states have (on average 3.118456790123457) internal successors, (50519), 16792 states have internal predecessors, (50519), 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, 1 states have (on average 4.0) 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 19:07:00,850 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 19:07:00,850 INFO  L93              Difference]: Finished difference Result 9201 states and 26910 transitions.
[2022-04-18 19:07:00,851 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-04-18 19:07:00,851 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 1 states have (on average 4.0) 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 19:07:00,851 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 19:07:00,900 INFO  L225             Difference]: With dead ends: 9201
[2022-04-18 19:07:00,900 INFO  L226             Difference]: Without dead ends: 9201
[2022-04-18 19:07:00,900 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 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 19:07:00,901 INFO  L913         BasicCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-04-18 19:07:00,901 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-04-18 19:07:00,940 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9201 states.
[2022-04-18 19:07:01,225 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9201 to 9201.
[2022-04-18 19:07:01,246 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9201 states, 9152 states have (on average 2.940340909090909) internal successors, (26910), 9200 states have internal predecessors, (26910), 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 19:07:01,355 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9201 states to 9201 states and 26910 transitions.
[2022-04-18 19:07:01,355 INFO  L78                 Accepts]: Start accepts. Automaton has 9201 states and 26910 transitions. Word has length 4
[2022-04-18 19:07:01,356 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 19:07:01,356 INFO  L478      AbstractCegarLoop]: Abstraction has 9201 states and 26910 transitions.
[2022-04-18 19:07:01,356 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 1 states have (on average 4.0) 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 19:07:01,356 INFO  L276                IsEmpty]: Start isEmpty. Operand 9201 states and 26910 transitions.
[2022-04-18 19:07:01,356 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-04-18 19:07:01,357 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:07:01,357 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-04-18 19:07:01,357 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-04-18 19:07:01,357 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] ===
[2022-04-18 19:07:01,358 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:07:01,358 INFO  L85        PathProgramCache]: Analyzing trace with hash -731940637, now seen corresponding path program 1 times
[2022-04-18 19:07:01,358 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:07:01,358 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513156591]
[2022-04-18 19:07:01,358 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:07:01,358 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:07:01,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 19:07:01,387 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 19:07:01,387 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 19:07:01,387 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513156591]
[2022-04-18 19:07:01,387 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513156591] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 19:07:01,399 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 19:07:01,399 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 19:07:01,399 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488679341]
[2022-04-18 19:07:01,400 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 19:07:01,400 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 19:07:01,400 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 19:07:01,400 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 19:07:01,401 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 19:07:01,401 INFO  L87              Difference]: Start difference. First operand 9201 states and 26910 transitions. Second operand  has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 19:07:02,019 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 19:07:02,019 INFO  L93              Difference]: Finished difference Result 11827 states and 34536 transitions.
[2022-04-18 19:07:02,020 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 19:07:02,020 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6
[2022-04-18 19:07:02,020 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 19:07:02,064 INFO  L225             Difference]: With dead ends: 11827
[2022-04-18 19:07:02,064 INFO  L226             Difference]: Without dead ends: 11827
[2022-04-18 19:07:02,065 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 19:07:02,065 INFO  L913         BasicCegarLoop]: 65 mSDtfsCounter, 90 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-04-18 19:07:02,066 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 109 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-04-18 19:07:02,086 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11827 states.
[2022-04-18 19:07:02,307 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11827 to 8977.
[2022-04-18 19:07:02,318 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8977 states, 8937 states have (on average 2.9602774980418487) internal successors, (26456), 8976 states have internal predecessors, (26456), 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 19:07:02,338 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8977 states to 8977 states and 26456 transitions.
[2022-04-18 19:07:02,338 INFO  L78                 Accepts]: Start accepts. Automaton has 8977 states and 26456 transitions. Word has length 6
[2022-04-18 19:07:02,338 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 19:07:02,339 INFO  L478      AbstractCegarLoop]: Abstraction has 8977 states and 26456 transitions.
[2022-04-18 19:07:02,339 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 19:07:02,339 INFO  L276                IsEmpty]: Start isEmpty. Operand 8977 states and 26456 transitions.
[2022-04-18 19:07:02,340 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-18 19:07:02,340 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:07:02,340 INFO  L499         BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2022-04-18 19:07:02,340 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-04-18 19:07:02,340 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] ===
[2022-04-18 19:07:02,341 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:07:02,341 INFO  L85        PathProgramCache]: Analyzing trace with hash 1687331542, now seen corresponding path program 1 times
[2022-04-18 19:07:02,341 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:07:02,341 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64975048]
[2022-04-18 19:07:02,341 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:07:02,341 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:07:02,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 19:07:02,351 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-18 19:07:02,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 19:07:02,361 INFO  L130   FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-04-18 19:07:02,361 INFO  L618         BasicCegarLoop]: Counterexample is feasible
[2022-04-18 19:07:02,361 INFO  L788   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining)
[2022-04-18 19:07:02,362 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining)
[2022-04-18 19:07:02,362 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining)
[2022-04-18 19:07:02,362 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining)
[2022-04-18 19:07:02,362 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining)
[2022-04-18 19:07:02,362 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining)
[2022-04-18 19:07:02,362 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining)
[2022-04-18 19:07:02,362 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining)
[2022-04-18 19:07:02,363 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining)
[2022-04-18 19:07:02,363 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining)
[2022-04-18 19:07:02,363 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining)
[2022-04-18 19:07:02,367 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining)
[2022-04-18 19:07:02,367 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining)
[2022-04-18 19:07:02,367 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining)
[2022-04-18 19:07:02,367 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining)
[2022-04-18 19:07:02,367 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining)
[2022-04-18 19:07:02,368 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining)
[2022-04-18 19:07:02,369 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining)
[2022-04-18 19:07:02,369 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining)
[2022-04-18 19:07:02,369 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining)
[2022-04-18 19:07:02,369 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining)
[2022-04-18 19:07:02,369 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining)
[2022-04-18 19:07:02,369 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining)
[2022-04-18 19:07:02,369 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining)
[2022-04-18 19:07:02,369 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining)
[2022-04-18 19:07:02,370 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining)
[2022-04-18 19:07:02,370 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining)
[2022-04-18 19:07:02,370 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining)
[2022-04-18 19:07:02,370 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining)
[2022-04-18 19:07:02,370 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining)
[2022-04-18 19:07:02,371 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining)
[2022-04-18 19:07:02,371 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining)
[2022-04-18 19:07:02,371 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining)
[2022-04-18 19:07:02,371 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining)
[2022-04-18 19:07:02,371 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining)
[2022-04-18 19:07:02,371 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining)
[2022-04-18 19:07:02,371 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining)
[2022-04-18 19:07:02,372 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining)
[2022-04-18 19:07:02,372 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining)
[2022-04-18 19:07:02,372 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining)
[2022-04-18 19:07:02,372 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining)
[2022-04-18 19:07:02,372 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining)
[2022-04-18 19:07:02,372 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining)
[2022-04-18 19:07:02,372 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining)
[2022-04-18 19:07:02,372 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining)
[2022-04-18 19:07:02,373 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining)
[2022-04-18 19:07:02,373 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining)
[2022-04-18 19:07:02,373 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining)
[2022-04-18 19:07:02,373 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining)
[2022-04-18 19:07:02,373 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-04-18 19:07:02,374 INFO  L719         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2022-04-18 19:07:02,374 WARN  L232   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-04-18 19:07:02,374 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2022-04-18 19:07:02,412 INFO  L135    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-04-18 19:07:02,413 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 19:07:02,413 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 19:07:02,413 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 65 error locations.
[2022-04-18 19:07:02,415 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 19:07:02,416 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 416 places, 446 transitions, 913 flow
[2022-04-18 19:07:02,416 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 416 places, 446 transitions, 913 flow
[2022-04-18 19:07:02,416 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 416 places, 446 transitions, 913 flow
[2022-04-18 19:07:02,547 INFO  L129       PetriNetUnfolder]: 40/483 cut-off events.
[2022-04-18 19:07:02,554 INFO  L130       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2022-04-18 19:07:02,569 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 499 conditions, 483 events. 40/483 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1979 event pairs, 0 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 424. Up to 8 conditions per place. 
[2022-04-18 19:07:02,599 INFO  L116        LiptonReduction]: Number of co-enabled transitions 124944
[2022-04-18 19:07:31,765 WARN  L232               SmtUtils]: Spent 12.72s on a formula simplification. DAG size of input: 107 DAG size of output: 100 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:07:54,603 WARN  L232               SmtUtils]: Spent 19.88s on a formula simplification. DAG size of input: 126 DAG size of output: 111 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:08:06,249 WARN  L232               SmtUtils]: Spent 11.65s on a formula simplification that was a NOOP. DAG size: 110 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:08:19,163 WARN  L232               SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 114 DAG size of output: 111 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:08:26,360 WARN  L232               SmtUtils]: Spent 7.20s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:08:35,657 WARN  L232               SmtUtils]: Spent 9.30s on a formula simplification. DAG size of input: 130 DAG size of output: 125 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:08:46,969 WARN  L232               SmtUtils]: Spent 11.31s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:09:08,260 WARN  L232               SmtUtils]: Spent 21.20s on a formula simplification. DAG size of input: 116 DAG size of output: 109 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:09:14,085 WARN  L232               SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:09:38,322 WARN  L232               SmtUtils]: Spent 24.24s on a formula simplification. DAG size of input: 138 DAG size of output: 123 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:09:45,171 WARN  L232               SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:10:23,508 WARN  L232               SmtUtils]: Spent 35.10s on a formula simplification. DAG size of input: 116 DAG size of output: 109 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:10:42,483 WARN  L232               SmtUtils]: Spent 18.97s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:11:08,840 WARN  L232               SmtUtils]: Spent 26.36s on a formula simplification. DAG size of input: 138 DAG size of output: 123 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:11:34,307 WARN  L232               SmtUtils]: Spent 25.47s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-04-18 19:11:35,387 INFO  L131        LiptonReduction]: Checked pairs total: 584490
[2022-04-18 19:11:35,388 INFO  L133        LiptonReduction]: Total number of compositions: 472
[2022-04-18 19:11:35,389 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 171 places, 182 transitions, 385 flow
[2022-04-18 19:11:57,481 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 890437 states, 880308 states have (on average 4.150374641602712) internal successors, (3653608), 890436 states have internal predecessors, (3653608), 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 19:11:58,886 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 890437 states, 880308 states have (on average 4.150374641602712) internal successors, (3653608), 890436 states have internal predecessors, (3653608), 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 19:11:58,887 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-04-18 19:11:58,887 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:11:58,887 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-04-18 19:11:58,888 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] ===
[2022-04-18 19:11:58,897 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:11:58,897 INFO  L85        PathProgramCache]: Analyzing trace with hash 85188221, now seen corresponding path program 1 times
[2022-04-18 19:11:58,897 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:11:58,898 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585208316]
[2022-04-18 19:11:58,898 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:11:58,898 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:11:58,904 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 19:11:58,908 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 19:11:58,908 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 19:11:58,908 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585208316]
[2022-04-18 19:11:58,908 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585208316] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 19:11:58,908 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 19:11:58,908 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2022-04-18 19:11:58,909 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393640571]
[2022-04-18 19:11:58,909 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 19:11:58,909 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-18 19:11:58,909 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 19:11:58,909 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-18 19:11:58,909 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 19:12:00,285 INFO  L87              Difference]: Start difference. First operand  has 890437 states, 880308 states have (on average 4.150374641602712) internal successors, (3653608), 890436 states have internal predecessors, (3653608), 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, 1 states have (on average 4.0) 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 19:12:09,127 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 19:12:09,128 INFO  L93              Difference]: Finished difference Result 395685 states and 1580460 transitions.
[2022-04-18 19:12:09,128 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-04-18 19:12:09,128 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 1 states have (on average 4.0) 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 19:12:09,129 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 19:12:13,343 INFO  L225             Difference]: With dead ends: 395685
[2022-04-18 19:12:13,344 INFO  L226             Difference]: Without dead ends: 395685
[2022-04-18 19:12:13,344 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 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 19:12:13,345 INFO  L913         BasicCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2022-04-18 19:12:13,346 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2022-04-18 19:12:14,999 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 395685 states.