./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.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/26_stack_cas_longer-1.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 e12b29ddb474fc17e74c2b71eb245022640b1de10fdbbb130c7f22e13cd3653f
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-efd9311-m
[2022-04-18 19:12:50,213 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-18 19:12:50,215 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-18 19:12:50,252 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-18 19:12:50,253 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-18 19:12:50,254 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-18 19:12:50,255 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-18 19:12:50,258 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-18 19:12:50,259 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-18 19:12:50,263 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-18 19:12:50,264 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-04-18 19:12:50,266 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-18 19:12:50,266 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-18 19:12:50,268 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-18 19:12:50,269 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-18 19:12:50,271 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-18 19:12:50,272 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-18 19:12:50,273 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-18 19:12:50,275 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-18 19:12:50,279 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-18 19:12:50,280 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-18 19:12:50,282 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-18 19:12:50,282 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-18 19:12:50,283 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-18 19:12:50,285 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-18 19:12:50,290 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-18 19:12:50,291 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-18 19:12:50,291 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-18 19:12:50,292 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-18 19:12:50,292 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-18 19:12:50,293 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-18 19:12:50,294 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-18 19:12:50,295 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-18 19:12:50,296 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-18 19:12:50,297 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-18 19:12:50,297 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-18 19:12:50,297 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-18 19:12:50,298 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-18 19:12:50,298 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-18 19:12:50,298 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-18 19:12:50,303 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-18 19:12:50,305 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-18 19:12:50,306 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf
[2022-04-18 19:12:50,327 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-18 19:12:50,328 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-18 19:12:50,328 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-04-18 19:12:50,328 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-04-18 19:12:50,329 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-18 19:12:50,329 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-18 19:12:50,329 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-04-18 19:12:50,329 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-04-18 19:12:50,330 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-04-18 19:12:50,330 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-04-18 19:12:50,330 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-04-18 19:12:50,331 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-04-18 19:12:50,331 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-04-18 19:12:50,331 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-04-18 19:12:50,331 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-04-18 19:12:50,331 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-04-18 19:12:50,331 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-04-18 19:12:50,332 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-04-18 19:12:50,333 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-18 19:12:50,334 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-04-18 19:12:50,334 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-04-18 19:12:50,334 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-18 19:12:50,334 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-04-18 19:12:50,334 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-18 19:12:50,334 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-18 19:12:50,335 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-18 19:12:50,335 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-18 19:12:50,335 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2022-04-18 19:12:50,335 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-04-18 19:12:50,335 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-18 19:12:50,336 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-18 19:12:50,336 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-18 19:12:50,336 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-18 19:12:50,336 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-18 19:12:50,336 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 19:12:50,336 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-18 19:12:50,337 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-04-18 19:12:50,337 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-18 19:12:50,337 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-04-18 19:12:50,337 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-04-18 19:12:50,337 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-18 19:12:50,337 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-04-18 19:12:50,337 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-18 19:12:50,338 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 -> e12b29ddb474fc17e74c2b71eb245022640b1de10fdbbb130c7f22e13cd3653f
[2022-04-18 19:12:50,552 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-18 19:12:50,566 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-18 19:12:50,569 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-18 19:12:50,569 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-18 19:12:50,570 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-18 19:12:50,571 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i
[2022-04-18 19:12:50,613 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b7574cd23/f4185cbc0c344cfbbdddc3cf0088ad19/FLAG9c91dac2f
[2022-04-18 19:12:51,019 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-18 19:12:51,019 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-1.i
[2022-04-18 19:12:51,038 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b7574cd23/f4185cbc0c344cfbbdddc3cf0088ad19/FLAG9c91dac2f
[2022-04-18 19:12:51,049 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b7574cd23/f4185cbc0c344cfbbdddc3cf0088ad19
[2022-04-18 19:12:51,050 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-18 19:12:51,052 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-04-18 19:12:51,055 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-18 19:12:51,055 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-18 19:12:51,057 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-18 19:12:51,057 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:12:51" (1/1) ...
[2022-04-18 19:12:51,058 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7840a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51, skipping insertion in model container
[2022-04-18 19:12:51,058 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:12:51" (1/1) ...
[2022-04-18 19:12:51,063 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-18 19:12:51,103 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-18 19:12:51,378 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/26_stack_cas_longer-1.i[31166,31179]
[2022-04-18 19:12:51,384 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 19:12:51,390 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-18 19:12:51,443 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/26_stack_cas_longer-1.i[31166,31179]
[2022-04-18 19:12:51,449 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 19:12:51,479 INFO  L208         MainTranslator]: Completed translation
[2022-04-18 19:12:51,479 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51 WrapperNode
[2022-04-18 19:12:51,480 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-18 19:12:51,480 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-04-18 19:12:51,480 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-04-18 19:12:51,481 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-04-18 19:12:51,486 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51" (1/1) ...
[2022-04-18 19:12:51,524 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51" (1/1) ...
[2022-04-18 19:12:51,550 INFO  L137                Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 319
[2022-04-18 19:12:51,551 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-04-18 19:12:51,552 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-18 19:12:51,552 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-18 19:12:51,553 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-18 19:12:51,558 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51" (1/1) ...
[2022-04-18 19:12:51,559 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51" (1/1) ...
[2022-04-18 19:12:51,569 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51" (1/1) ...
[2022-04-18 19:12:51,570 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51" (1/1) ...
[2022-04-18 19:12:51,589 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51" (1/1) ...
[2022-04-18 19:12:51,602 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51" (1/1) ...
[2022-04-18 19:12:51,605 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51" (1/1) ...
[2022-04-18 19:12:51,608 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-18 19:12:51,609 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-18 19:12:51,609 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-18 19:12:51,609 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-18 19:12:51,610 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51" (1/1) ...
[2022-04-18 19:12:51,621 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 19:12:51,630 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 19:12:51,639 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 19:12:51,646 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 19:12:51,677 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-18 19:12:51,677 INFO  L130     BoogieDeclarations]: Found specification of procedure thr1
[2022-04-18 19:12:51,677 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr1
[2022-04-18 19:12:51,677 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-18 19:12:51,677 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-18 19:12:51,678 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-04-18 19:12:51,678 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-18 19:12:51,678 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-18 19:12:51,678 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-18 19:12:51,678 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-18 19:12:51,679 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 19:12:51,823 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-18 19:12:51,824 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-18 19:12:52,269 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-18 19:12:52,496 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-18 19:12:52,497 INFO  L299             CfgBuilder]: Removed 3 assume(true) statements.
[2022-04-18 19:12:52,499 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:12:52 BoogieIcfgContainer
[2022-04-18 19:12:52,499 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-18 19:12:52,501 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-18 19:12:52,502 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-18 19:12:52,504 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-18 19:12:52,504 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:12:51" (1/3) ...
[2022-04-18 19:12:52,505 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391882ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:12:52, skipping insertion in model container
[2022-04-18 19:12:52,505 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:12:51" (2/3) ...
[2022-04-18 19:12:52,506 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391882ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:12:52, skipping insertion in model container
[2022-04-18 19:12:52,506 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:12:52" (3/3) ...
[2022-04-18 19:12:52,507 INFO  L111   eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longer-1.i
[2022-04-18 19:12:52,511 WARN  L147   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-04-18 19:12:52,511 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-18 19:12:52,512 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations.
[2022-04-18 19:12:52,512 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-04-18 19:12:52,585 INFO  L135    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-04-18 19:12:52,625 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 19:12:52,630 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 19:12:52,630 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 53 error locations.
[2022-04-18 19:12:52,640 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 19:12:52,648 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 191 transitions, 387 flow
[2022-04-18 19:12:52,650 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 191 transitions, 387 flow
[2022-04-18 19:12:52,651 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 184 places, 191 transitions, 387 flow
[2022-04-18 19:12:52,719 INFO  L129       PetriNetUnfolder]: 11/202 cut-off events.
[2022-04-18 19:12:52,719 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-04-18 19:12:52,724 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 207 conditions, 202 events. 11/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 262 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 164. Up to 4 conditions per place. 
[2022-04-18 19:12:52,727 INFO  L116        LiptonReduction]: Number of co-enabled transitions 4228
[2022-04-18 19:13:30,051 INFO  L131        LiptonReduction]: Checked pairs total: 4908
[2022-04-18 19:13:30,051 INFO  L133        LiptonReduction]: Total number of compositions: 242
[2022-04-18 19:13:30,057 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 51 transitions, 107 flow
[2022-04-18 19:13:30,078 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 197 states, 144 states have (on average 2.6458333333333335) internal successors, (381), 196 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 19:13:30,084 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 197 states, 144 states have (on average 2.6458333333333335) internal successors, (381), 196 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 19:13:30,090 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-04-18 19:13:30,090 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:13:30,090 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-04-18 19:13:30,091 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] ===
[2022-04-18 19:13:30,094 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:13:30,094 INFO  L85        PathProgramCache]: Analyzing trace with hash 41135413, now seen corresponding path program 1 times
[2022-04-18 19:13:30,100 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:13:30,101 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892316182]
[2022-04-18 19:13:30,101 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:13:30,102 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:13:30,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 19:13:30,236 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 19:13:30,237 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 19:13:30,237 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892316182]
[2022-04-18 19:13:30,238 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892316182] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 19:13:30,238 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 19:13:30,238 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2022-04-18 19:13:30,239 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850869513]
[2022-04-18 19:13:30,239 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 19:13:30,243 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-18 19:13:30,243 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 19:13:30,260 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-18 19:13:30,260 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 19:13:30,263 INFO  L87              Difference]: Start difference. First operand  has 197 states, 144 states have (on average 2.6458333333333335) internal successors, (381), 196 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 19:13:30,351 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 19:13:30,351 INFO  L93              Difference]: Finished difference Result 55 states and 110 transitions.
[2022-04-18 19:13:30,353 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-04-18 19:13:30,354 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 19:13:30,354 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 19:13:30,358 INFO  L225             Difference]: With dead ends: 55
[2022-04-18 19:13:30,358 INFO  L226             Difference]: Without dead ends: 55
[2022-04-18 19:13:30,359 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 19:13:30,361 INFO  L913         BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 19:13:30,362 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 19:13:30,373 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2022-04-18 19:13:30,382 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2022-04-18 19:13:30,383 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 55 states, 54 states have (on average 2.037037037037037) internal successors, (110), 54 states have internal predecessors, (110), 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 19:13:30,384 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 110 transitions.
[2022-04-18 19:13:30,385 INFO  L78                 Accepts]: Start accepts. Automaton has 55 states and 110 transitions. Word has length 4
[2022-04-18 19:13:30,385 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 19:13:30,385 INFO  L478      AbstractCegarLoop]: Abstraction has 55 states and 110 transitions.
[2022-04-18 19:13:30,385 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 19:13:30,385 INFO  L276                IsEmpty]: Start isEmpty. Operand 55 states and 110 transitions.
[2022-04-18 19:13:30,386 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-04-18 19:13:30,386 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:13:30,386 INFO  L499         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1]
[2022-04-18 19:13:30,386 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-18 19:13:30,386 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] ===
[2022-04-18 19:13:30,387 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:13:30,387 INFO  L85        PathProgramCache]: Analyzing trace with hash 876329894, now seen corresponding path program 1 times
[2022-04-18 19:13:30,387 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:13:30,387 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57130177]
[2022-04-18 19:13:30,388 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:13:30,388 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:13:30,419 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 19:13:30,420 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-18 19:13:30,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 19:13:30,449 INFO  L130   FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-04-18 19:13:30,449 INFO  L618         BasicCegarLoop]: Counterexample is feasible
[2022-04-18 19:13:30,450 INFO  L788   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining)
[2022-04-18 19:13:30,452 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining)
[2022-04-18 19:13:30,452 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining)
[2022-04-18 19:13:30,452 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining)
[2022-04-18 19:13:30,452 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining)
[2022-04-18 19:13:30,452 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining)
[2022-04-18 19:13:30,453 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining)
[2022-04-18 19:13:30,453 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining)
[2022-04-18 19:13:30,453 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining)
[2022-04-18 19:13:30,453 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining)
[2022-04-18 19:13:30,453 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining)
[2022-04-18 19:13:30,453 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining)
[2022-04-18 19:13:30,454 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining)
[2022-04-18 19:13:30,454 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining)
[2022-04-18 19:13:30,454 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining)
[2022-04-18 19:13:30,454 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining)
[2022-04-18 19:13:30,454 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining)
[2022-04-18 19:13:30,454 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining)
[2022-04-18 19:13:30,455 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining)
[2022-04-18 19:13:30,455 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining)
[2022-04-18 19:13:30,455 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining)
[2022-04-18 19:13:30,455 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining)
[2022-04-18 19:13:30,455 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining)
[2022-04-18 19:13:30,456 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining)
[2022-04-18 19:13:30,456 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining)
[2022-04-18 19:13:30,456 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining)
[2022-04-18 19:13:30,456 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining)
[2022-04-18 19:13:30,456 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining)
[2022-04-18 19:13:30,456 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining)
[2022-04-18 19:13:30,457 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining)
[2022-04-18 19:13:30,457 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining)
[2022-04-18 19:13:30,457 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining)
[2022-04-18 19:13:30,457 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining)
[2022-04-18 19:13:30,457 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining)
[2022-04-18 19:13:30,457 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining)
[2022-04-18 19:13:30,458 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining)
[2022-04-18 19:13:30,458 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining)
[2022-04-18 19:13:30,458 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining)
[2022-04-18 19:13:30,458 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining)
[2022-04-18 19:13:30,458 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining)
[2022-04-18 19:13:30,458 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining)
[2022-04-18 19:13:30,459 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining)
[2022-04-18 19:13:30,459 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining)
[2022-04-18 19:13:30,459 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining)
[2022-04-18 19:13:30,459 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining)
[2022-04-18 19:13:30,459 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining)
[2022-04-18 19:13:30,460 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining)
[2022-04-18 19:13:30,460 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining)
[2022-04-18 19:13:30,460 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining)
[2022-04-18 19:13:30,460 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining)
[2022-04-18 19:13:30,460 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining)
[2022-04-18 19:13:30,460 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining)
[2022-04-18 19:13:30,461 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining)
[2022-04-18 19:13:30,461 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-04-18 19:13:30,462 INFO  L719         BasicCegarLoop]: Path program histogram: [1, 1]
[2022-04-18 19:13:30,463 WARN  L232   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-04-18 19:13:30,463 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2022-04-18 19:13:30,509 INFO  L135    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-04-18 19:13:30,528 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 19:13:30,528 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 19:13:30,529 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 79 error locations.
[2022-04-18 19:13:30,531 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 19:13:30,531 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 329 places, 343 transitions, 698 flow
[2022-04-18 19:13:30,531 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 329 places, 343 transitions, 698 flow
[2022-04-18 19:13:30,531 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 329 places, 343 transitions, 698 flow
[2022-04-18 19:13:30,602 INFO  L129       PetriNetUnfolder]: 21/367 cut-off events.
[2022-04-18 19:13:30,603 INFO  L130       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2022-04-18 19:13:30,609 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 377 conditions, 367 events. 21/367 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1004 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 315. Up to 6 conditions per place. 
[2022-04-18 19:13:30,633 INFO  L116        LiptonReduction]: Number of co-enabled transitions 54360
[2022-04-18 19:16:48,753 INFO  L131        LiptonReduction]: Checked pairs total: 395728
[2022-04-18 19:16:48,753 INFO  L133        LiptonReduction]: Total number of compositions: 378
[2022-04-18 19:16:48,754 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 168 places, 177 transitions, 366 flow
[2022-04-18 19:16:49,553 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 37363 states, 35880 states have (on average 3.099526198439242) internal successors, (111211), 37362 states have internal predecessors, (111211), 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 19:16:49,633 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 37363 states, 35880 states have (on average 3.099526198439242) internal successors, (111211), 37362 states have internal predecessors, (111211), 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 19:16:49,634 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-04-18 19:16:49,634 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:16:49,634 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-04-18 19:16:49,635 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] ===
[2022-04-18 19:16:49,637 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:16:49,637 INFO  L85        PathProgramCache]: Analyzing trace with hash 65867120, now seen corresponding path program 1 times
[2022-04-18 19:16:49,637 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:16:49,637 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084815105]
[2022-04-18 19:16:49,638 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:16:49,638 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:16:49,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 19:16:49,685 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 19:16:49,685 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 19:16:49,685 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084815105]
[2022-04-18 19:16:49,686 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084815105] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 19:16:49,686 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 19:16:49,691 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2022-04-18 19:16:49,691 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039629450]
[2022-04-18 19:16:49,692 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 19:16:49,693 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-18 19:16:49,693 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 19:16:49,693 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-18 19:16:49,694 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 19:16:49,761 INFO  L87              Difference]: Start difference. First operand  has 37363 states, 35880 states have (on average 3.099526198439242) internal successors, (111211), 37362 states have internal predecessors, (111211), 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 19:16:50,488 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 19:16:50,488 INFO  L93              Difference]: Finished difference Result 20415 states and 59511 transitions.
[2022-04-18 19:16:50,489 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-04-18 19:16:50,489 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 19:16:50,489 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 19:16:50,609 INFO  L225             Difference]: With dead ends: 20415
[2022-04-18 19:16:50,610 INFO  L226             Difference]: Without dead ends: 20415
[2022-04-18 19:16:50,612 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 19:16:50,615 INFO  L913         BasicCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-04-18 19:16:50,616 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-04-18 19:16:50,659 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20415 states.
[2022-04-18 19:16:51,154 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20415 to 20415.
[2022-04-18 19:16:51,184 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20415 states, 20271 states have (on average 2.935770312268758) internal successors, (59511), 20414 states have internal predecessors, (59511), 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 19:16:51,417 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20415 states to 20415 states and 59511 transitions.
[2022-04-18 19:16:51,417 INFO  L78                 Accepts]: Start accepts. Automaton has 20415 states and 59511 transitions. Word has length 4
[2022-04-18 19:16:51,417 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 19:16:51,418 INFO  L478      AbstractCegarLoop]: Abstraction has 20415 states and 59511 transitions.
[2022-04-18 19:16:51,418 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 19:16:51,418 INFO  L276                IsEmpty]: Start isEmpty. Operand 20415 states and 59511 transitions.
[2022-04-18 19:16:51,418 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-04-18 19:16:51,418 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:16:51,418 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-04-18 19:16:51,419 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-04-18 19:16:51,419 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] ===
[2022-04-18 19:16:51,419 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:16:51,419 INFO  L85        PathProgramCache]: Analyzing trace with hash -1126153166, now seen corresponding path program 1 times
[2022-04-18 19:16:51,420 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:16:51,420 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892046021]
[2022-04-18 19:16:51,420 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:16:51,420 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:16:51,447 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 19:16:51,490 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 19:16:51,490 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 19:16:51,490 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892046021]
[2022-04-18 19:16:51,490 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892046021] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 19:16:51,490 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 19:16:51,490 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 19:16:51,490 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679728893]
[2022-04-18 19:16:51,491 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 19:16:51,491 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 19:16:51,491 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 19:16:51,491 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 19:16:51,491 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 19:16:51,492 INFO  L87              Difference]: Start difference. First operand 20415 states and 59511 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 19:16:52,888 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 19:16:52,889 INFO  L93              Difference]: Finished difference Result 38970 states and 113688 transitions.
[2022-04-18 19:16:52,889 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 19:16:52,889 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 19:16:52,890 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 19:16:53,085 INFO  L225             Difference]: With dead ends: 38970
[2022-04-18 19:16:53,086 INFO  L226             Difference]: Without dead ends: 38970
[2022-04-18 19:16:53,086 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 19:16:53,088 INFO  L913         BasicCegarLoop]: 85 mSDtfsCounter, 134 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2022-04-18 19:16:53,089 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 156 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2022-04-18 19:16:53,167 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 38970 states.
[2022-04-18 19:16:53,781 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 38970 to 20761.
[2022-04-18 19:16:53,809 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20761 states, 20620 states have (on average 2.957953443258972) internal successors, (60993), 20760 states have internal predecessors, (60993), 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 19:16:53,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20761 states to 20761 states and 60993 transitions.
[2022-04-18 19:16:53,866 INFO  L78                 Accepts]: Start accepts. Automaton has 20761 states and 60993 transitions. Word has length 6
[2022-04-18 19:16:53,866 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 19:16:53,866 INFO  L478      AbstractCegarLoop]: Abstraction has 20761 states and 60993 transitions.
[2022-04-18 19:16:53,866 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 19:16:53,866 INFO  L276                IsEmpty]: Start isEmpty. Operand 20761 states and 60993 transitions.
[2022-04-18 19:16:53,867 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-18 19:16:53,867 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:16:53,867 INFO  L499         BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2022-04-18 19:16:53,868 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-04-18 19:16:53,868 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] ===
[2022-04-18 19:16:53,868 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:16:53,868 INFO  L85        PathProgramCache]: Analyzing trace with hash -735451668, now seen corresponding path program 1 times
[2022-04-18 19:16:53,868 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:16:53,869 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607174498]
[2022-04-18 19:16:53,869 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:16:53,869 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:16:53,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 19:16:53,880 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-18 19:16:53,885 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 19:16:53,891 INFO  L130   FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-04-18 19:16:53,891 INFO  L618         BasicCegarLoop]: Counterexample is feasible
[2022-04-18 19:16:53,892 INFO  L788   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (78 of 79 remaining)
[2022-04-18 19:16:53,892 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining)
[2022-04-18 19:16:53,892 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining)
[2022-04-18 19:16:53,892 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining)
[2022-04-18 19:16:53,892 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining)
[2022-04-18 19:16:53,892 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining)
[2022-04-18 19:16:53,893 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining)
[2022-04-18 19:16:53,893 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining)
[2022-04-18 19:16:53,893 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining)
[2022-04-18 19:16:53,893 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining)
[2022-04-18 19:16:53,893 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining)
[2022-04-18 19:16:53,893 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining)
[2022-04-18 19:16:53,893 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining)
[2022-04-18 19:16:53,894 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining)
[2022-04-18 19:16:53,894 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining)
[2022-04-18 19:16:53,894 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining)
[2022-04-18 19:16:53,894 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining)
[2022-04-18 19:16:53,894 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining)
[2022-04-18 19:16:53,894 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining)
[2022-04-18 19:16:53,894 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining)
[2022-04-18 19:16:53,895 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining)
[2022-04-18 19:16:53,895 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining)
[2022-04-18 19:16:53,895 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining)
[2022-04-18 19:16:53,895 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining)
[2022-04-18 19:16:53,895 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining)
[2022-04-18 19:16:53,895 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining)
[2022-04-18 19:16:53,895 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining)
[2022-04-18 19:16:53,896 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining)
[2022-04-18 19:16:53,896 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining)
[2022-04-18 19:16:53,896 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining)
[2022-04-18 19:16:53,896 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining)
[2022-04-18 19:16:53,896 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining)
[2022-04-18 19:16:53,896 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining)
[2022-04-18 19:16:53,896 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining)
[2022-04-18 19:16:53,897 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining)
[2022-04-18 19:16:53,897 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining)
[2022-04-18 19:16:53,897 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining)
[2022-04-18 19:16:53,897 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining)
[2022-04-18 19:16:53,897 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining)
[2022-04-18 19:16:53,897 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining)
[2022-04-18 19:16:53,897 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining)
[2022-04-18 19:16:53,898 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining)
[2022-04-18 19:16:53,898 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining)
[2022-04-18 19:16:53,898 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining)
[2022-04-18 19:16:53,898 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining)
[2022-04-18 19:16:53,898 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining)
[2022-04-18 19:16:53,898 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining)
[2022-04-18 19:16:53,898 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 79 remaining)
[2022-04-18 19:16:53,899 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 79 remaining)
[2022-04-18 19:16:53,899 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 79 remaining)
[2022-04-18 19:16:53,899 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining)
[2022-04-18 19:16:53,899 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining)
[2022-04-18 19:16:53,899 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining)
[2022-04-18 19:16:53,899 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining)
[2022-04-18 19:16:53,899 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining)
[2022-04-18 19:16:53,900 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining)
[2022-04-18 19:16:53,900 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining)
[2022-04-18 19:16:53,900 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining)
[2022-04-18 19:16:53,900 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining)
[2022-04-18 19:16:53,900 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining)
[2022-04-18 19:16:53,900 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining)
[2022-04-18 19:16:53,900 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining)
[2022-04-18 19:16:53,901 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining)
[2022-04-18 19:16:53,901 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining)
[2022-04-18 19:16:53,901 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining)
[2022-04-18 19:16:53,901 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining)
[2022-04-18 19:16:53,901 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining)
[2022-04-18 19:16:53,901 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining)
[2022-04-18 19:16:53,901 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining)
[2022-04-18 19:16:53,902 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining)
[2022-04-18 19:16:53,902 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining)
[2022-04-18 19:16:53,902 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining)
[2022-04-18 19:16:53,902 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining)
[2022-04-18 19:16:53,902 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining)
[2022-04-18 19:16:53,902 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining)
[2022-04-18 19:16:53,902 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining)
[2022-04-18 19:16:53,903 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining)
[2022-04-18 19:16:53,903 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining)
[2022-04-18 19:16:53,903 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining)
[2022-04-18 19:16:53,903 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-04-18 19:16:53,903 INFO  L719         BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2022-04-18 19:16:53,904 WARN  L232   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-04-18 19:16:53,904 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2022-04-18 19:16:53,952 INFO  L135    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-04-18 19:16:53,953 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 19:16:53,954 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 19:16:53,954 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 105 error locations.
[2022-04-18 19:16:53,956 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 19:16:53,957 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 474 places, 495 transitions, 1011 flow
[2022-04-18 19:16:53,957 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 474 places, 495 transitions, 1011 flow
[2022-04-18 19:16:53,957 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 474 places, 495 transitions, 1011 flow
[2022-04-18 19:16:54,031 INFO  L129       PetriNetUnfolder]: 31/532 cut-off events.
[2022-04-18 19:16:54,032 INFO  L130       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2022-04-18 19:16:54,043 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 548 conditions, 532 events. 31/532 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1971 event pairs, 0 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 466. Up to 8 conditions per place. 
[2022-04-18 19:16:54,072 INFO  L116        LiptonReduction]: Number of co-enabled transitions 150396
[2022-04-18 19:20:41,172 INFO  L131        LiptonReduction]: Checked pairs total: 1161345
[2022-04-18 19:20:41,173 INFO  L133        LiptonReduction]: Total number of compositions: 527
[2022-04-18 19:20:41,174 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 249 places, 263 transitions, 547 flow