./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/10_fmaxsym_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/10_fmaxsym_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 a11d0cba01cb66911cac56797cb36d325dc008752ffb55c25c965bd0644c21c3
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-efd9311-m
[2022-04-18 19:04:39,330 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-18 19:04:39,332 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-18 19:04:39,357 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-18 19:04:39,358 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-18 19:04:39,359 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-18 19:04:39,360 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-18 19:04:39,361 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-18 19:04:39,363 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-18 19:04:39,363 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-18 19:04:39,364 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-04-18 19:04:39,365 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-18 19:04:39,366 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-18 19:04:39,369 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-18 19:04:39,370 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-18 19:04:39,372 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-18 19:04:39,373 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-18 19:04:39,376 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-18 19:04:39,377 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-18 19:04:39,383 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-18 19:04:39,384 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-18 19:04:39,388 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-18 19:04:39,388 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-18 19:04:39,389 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-18 19:04:39,390 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-18 19:04:39,392 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-18 19:04:39,395 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-18 19:04:39,395 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-18 19:04:39,396 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-18 19:04:39,396 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-18 19:04:39,398 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-18 19:04:39,398 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-18 19:04:39,399 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-18 19:04:39,400 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-18 19:04:39,401 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-18 19:04:39,402 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-18 19:04:39,402 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-18 19:04:39,403 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-18 19:04:39,403 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-18 19:04:39,403 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-18 19:04:39,404 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-18 19:04:39,405 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-18 19:04:39,407 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf
[2022-04-18 19:04:39,442 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-18 19:04:39,442 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-18 19:04:39,443 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-04-18 19:04:39,443 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-04-18 19:04:39,443 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-18 19:04:39,444 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-18 19:04:39,444 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-04-18 19:04:39,444 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-04-18 19:04:39,444 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-04-18 19:04:39,445 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-04-18 19:04:39,445 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-04-18 19:04:39,445 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-04-18 19:04:39,446 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-04-18 19:04:39,446 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-04-18 19:04:39,446 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-04-18 19:04:39,447 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-04-18 19:04:39,447 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-04-18 19:04:39,447 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-04-18 19:04:39,448 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-18 19:04:39,449 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-04-18 19:04:39,449 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-04-18 19:04:39,449 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-18 19:04:39,449 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-04-18 19:04:39,449 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-18 19:04:39,450 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-18 19:04:39,450 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-18 19:04:39,450 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-18 19:04:39,450 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2022-04-18 19:04:39,450 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-04-18 19:04:39,451 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-18 19:04:39,451 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-18 19:04:39,451 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-18 19:04:39,451 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-18 19:04:39,451 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-18 19:04:39,452 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 19:04:39,452 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-18 19:04:39,452 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-04-18 19:04:39,452 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-18 19:04:39,452 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-04-18 19:04:39,452 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-04-18 19:04:39,453 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-18 19:04:39,453 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-04-18 19:04:39,453 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-18 19:04:39,453 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 -> a11d0cba01cb66911cac56797cb36d325dc008752ffb55c25c965bd0644c21c3
[2022-04-18 19:04:39,675 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-18 19:04:39,698 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-18 19:04:39,700 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-18 19:04:39,700 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-18 19:04:39,701 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-18 19:04:39,702 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/10_fmaxsym_cas.i
[2022-04-18 19:04:39,757 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/50de8553a/02970e09f72746ba84f89f71efb55a6a/FLAGdb272a103
[2022-04-18 19:04:40,173 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-18 19:04:40,176 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/10_fmaxsym_cas.i
[2022-04-18 19:04:40,189 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/50de8553a/02970e09f72746ba84f89f71efb55a6a/FLAGdb272a103
[2022-04-18 19:04:40,201 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/50de8553a/02970e09f72746ba84f89f71efb55a6a
[2022-04-18 19:04:40,203 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-18 19:04:40,204 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-04-18 19:04:40,205 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-18 19:04:40,206 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-18 19:04:40,208 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-18 19:04:40,224 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:04:40" (1/1) ...
[2022-04-18 19:04:40,224 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54de0ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40, skipping insertion in model container
[2022-04-18 19:04:40,225 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:04:40" (1/1) ...
[2022-04-18 19:04:40,229 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-18 19:04:40,260 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-18 19:04:40,521 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/10_fmaxsym_cas.i[30467,30480]
[2022-04-18 19:04:40,525 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 19:04:40,531 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-18 19:04:40,563 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/10_fmaxsym_cas.i[30467,30480]
[2022-04-18 19:04:40,570 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 19:04:40,593 INFO  L208         MainTranslator]: Completed translation
[2022-04-18 19:04:40,594 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40 WrapperNode
[2022-04-18 19:04:40,594 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-18 19:04:40,595 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-04-18 19:04:40,595 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-04-18 19:04:40,595 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-04-18 19:04:40,599 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40" (1/1) ...
[2022-04-18 19:04:40,621 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40" (1/1) ...
[2022-04-18 19:04:40,638 INFO  L137                Inliner]: procedures = 170, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142
[2022-04-18 19:04:40,639 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-04-18 19:04:40,639 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-18 19:04:40,639 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-18 19:04:40,639 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-18 19:04:40,644 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40" (1/1) ...
[2022-04-18 19:04:40,644 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40" (1/1) ...
[2022-04-18 19:04:40,651 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40" (1/1) ...
[2022-04-18 19:04:40,652 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40" (1/1) ...
[2022-04-18 19:04:40,667 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40" (1/1) ...
[2022-04-18 19:04:40,671 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40" (1/1) ...
[2022-04-18 19:04:40,672 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40" (1/1) ...
[2022-04-18 19:04:40,676 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-18 19:04:40,676 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-18 19:04:40,676 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-18 19:04:40,676 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-18 19:04:40,677 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40" (1/1) ...
[2022-04-18 19:04:40,684 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 19:04:40,691 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 19:04:40,699 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 19:04:40,703 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 19:04:40,722 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-18 19:04:40,722 INFO  L130     BoogieDeclarations]: Found specification of procedure thr1
[2022-04-18 19:04:40,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr1
[2022-04-18 19:04:40,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-18 19:04:40,722 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-18 19:04:40,723 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-04-18 19:04:40,723 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-18 19:04:40,723 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-18 19:04:40,723 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-18 19:04:40,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-18 19:04:40,724 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 19:04:40,796 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-18 19:04:40,798 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-18 19:04:41,025 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-18 19:04:41,098 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-18 19:04:41,098 INFO  L299             CfgBuilder]: Removed 3 assume(true) statements.
[2022-04-18 19:04:41,100 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:04:41 BoogieIcfgContainer
[2022-04-18 19:04:41,100 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-18 19:04:41,101 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-18 19:04:41,101 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-18 19:04:41,103 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-18 19:04:41,104 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:04:40" (1/3) ...
[2022-04-18 19:04:41,104 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417afa27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:04:41, skipping insertion in model container
[2022-04-18 19:04:41,104 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:04:40" (2/3) ...
[2022-04-18 19:04:41,105 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417afa27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:04:41, skipping insertion in model container
[2022-04-18 19:04:41,105 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:04:41" (3/3) ...
[2022-04-18 19:04:41,106 INFO  L111   eAbstractionObserver]: Analyzing ICFG 10_fmaxsym_cas.i
[2022-04-18 19:04:41,109 WARN  L147   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-04-18 19:04:41,109 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-18 19:04:41,109 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations.
[2022-04-18 19:04:41,109 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-04-18 19:04:41,187 INFO  L135    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-04-18 19:04:41,222 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 19:04:41,228 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 19:04:41,228 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 17 error locations.
[2022-04-18 19:04:41,238 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 19:04:41,248 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 123 transitions, 251 flow
[2022-04-18 19:04:41,251 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 123 transitions, 251 flow
[2022-04-18 19:04:41,252 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 117 places, 123 transitions, 251 flow
[2022-04-18 19:04:41,309 INFO  L129       PetriNetUnfolder]: 10/134 cut-off events.
[2022-04-18 19:04:41,309 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-04-18 19:04:41,312 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 139 conditions, 134 events. 10/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 138 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 97. Up to 4 conditions per place. 
[2022-04-18 19:04:41,316 INFO  L116        LiptonReduction]: Number of co-enabled transitions 2352
[2022-04-18 19:05:10,632 INFO  L131        LiptonReduction]: Checked pairs total: 2433
[2022-04-18 19:05:10,632 INFO  L133        LiptonReduction]: Total number of compositions: 136
[2022-04-18 19:05:10,638 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 25 transitions, 55 flow
[2022-04-18 19:05:10,662 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 82 states, 65 states have (on average 2.4615384615384617) internal successors, (160), 81 states have internal predecessors, (160), 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 19:05:10,665 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 82 states, 65 states have (on average 2.4615384615384617) internal successors, (160), 81 states have internal predecessors, (160), 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 19:05:10,668 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2022-04-18 19:05:10,668 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:05:10,669 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2022-04-18 19:05:10,669 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] ===
[2022-04-18 19:05:10,674 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:05:10,674 INFO  L85        PathProgramCache]: Analyzing trace with hash 605049561, now seen corresponding path program 1 times
[2022-04-18 19:05:10,680 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:05:10,681 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78721723]
[2022-04-18 19:05:10,681 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:05:10,681 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:05:10,757 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 19:05:10,792 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 19:05:10,793 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 19:05:10,793 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78721723]
[2022-04-18 19:05:10,793 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78721723] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 19:05:10,794 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 19:05:10,794 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2022-04-18 19:05:10,795 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22771565]
[2022-04-18 19:05:10,795 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 19:05:10,797 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-18 19:05:10,798 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 19:05:10,810 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-18 19:05:10,811 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 19:05:10,813 INFO  L87              Difference]: Start difference. First operand  has 82 states, 65 states have (on average 2.4615384615384617) internal successors, (160), 81 states have internal predecessors, (160), 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 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 19:05:10,946 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 19:05:10,947 INFO  L93              Difference]: Finished difference Result 39 states and 74 transitions.
[2022-04-18 19:05:10,948 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-04-18 19:05:10,949 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2022-04-18 19:05:10,949 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 19:05:10,957 INFO  L225             Difference]: With dead ends: 39
[2022-04-18 19:05:10,957 INFO  L226             Difference]: Without dead ends: 39
[2022-04-18 19:05:10,958 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 19:05:10,959 INFO  L913         BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 19:05:10,960 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 19:05:10,970 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2022-04-18 19:05:10,982 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39.
[2022-04-18 19:05:10,983 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 39 states, 37 states have (on average 2.0) internal successors, (74), 38 states have internal predecessors, (74), 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 19:05:10,984 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 74 transitions.
[2022-04-18 19:05:10,985 INFO  L78                 Accepts]: Start accepts. Automaton has 39 states and 74 transitions. Word has length 5
[2022-04-18 19:05:10,985 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 19:05:10,985 INFO  L478      AbstractCegarLoop]: Abstraction has 39 states and 74 transitions.
[2022-04-18 19:05:10,986 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 19:05:10,986 INFO  L276                IsEmpty]: Start isEmpty. Operand 39 states and 74 transitions.
[2022-04-18 19:05:10,987 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-04-18 19:05:10,987 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:05:10,987 INFO  L499         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1]
[2022-04-18 19:05:10,987 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-18 19:05:10,988 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] ===
[2022-04-18 19:05:10,989 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:05:10,990 INFO  L85        PathProgramCache]: Analyzing trace with hash 1576569530, now seen corresponding path program 1 times
[2022-04-18 19:05:10,990 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:05:10,993 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678576567]
[2022-04-18 19:05:10,994 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:05:10,994 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:05:11,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 19:05:11,027 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-18 19:05:11,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 19:05:11,053 INFO  L130   FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-04-18 19:05:11,053 INFO  L618         BasicCegarLoop]: Counterexample is feasible
[2022-04-18 19:05:11,054 INFO  L788   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining)
[2022-04-18 19:05:11,055 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining)
[2022-04-18 19:05:11,056 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining)
[2022-04-18 19:05:11,056 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining)
[2022-04-18 19:05:11,056 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining)
[2022-04-18 19:05:11,056 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining)
[2022-04-18 19:05:11,057 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining)
[2022-04-18 19:05:11,057 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining)
[2022-04-18 19:05:11,057 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining)
[2022-04-18 19:05:11,057 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining)
[2022-04-18 19:05:11,057 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining)
[2022-04-18 19:05:11,057 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining)
[2022-04-18 19:05:11,058 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining)
[2022-04-18 19:05:11,058 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining)
[2022-04-18 19:05:11,058 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining)
[2022-04-18 19:05:11,058 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining)
[2022-04-18 19:05:11,058 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining)
[2022-04-18 19:05:11,059 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-04-18 19:05:11,060 INFO  L719         BasicCegarLoop]: Path program histogram: [1, 1]
[2022-04-18 19:05:11,061 WARN  L232   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-04-18 19:05:11,061 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2022-04-18 19:05:11,098 INFO  L135    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-04-18 19:05:11,105 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 19:05:11,109 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 19:05:11,109 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 25 error locations.
[2022-04-18 19:05:11,111 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 19:05:11,113 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 208 transitions, 428 flow
[2022-04-18 19:05:11,113 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 208 transitions, 428 flow
[2022-04-18 19:05:11,113 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 196 places, 208 transitions, 428 flow
[2022-04-18 19:05:11,169 INFO  L129       PetriNetUnfolder]: 19/232 cut-off events.
[2022-04-18 19:05:11,170 INFO  L130       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2022-04-18 19:05:11,174 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 242 conditions, 232 events. 19/232 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 503 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 181. Up to 6 conditions per place. 
[2022-04-18 19:05:11,203 INFO  L116        LiptonReduction]: Number of co-enabled transitions 18984
[2022-04-18 19:08:12,350 INFO  L131        LiptonReduction]: Checked pairs total: 71694
[2022-04-18 19:08:12,350 INFO  L133        LiptonReduction]: Total number of compositions: 218
[2022-04-18 19:08:12,351 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 85 transitions, 182 flow
[2022-04-18 19:08:12,536 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 7526 states, 7357 states have (on average 3.080467581894794) internal successors, (22663), 7525 states have internal predecessors, (22663), 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 19:08:12,561 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7526 states, 7357 states have (on average 3.080467581894794) internal successors, (22663), 7525 states have internal predecessors, (22663), 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 19:08:12,562 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2022-04-18 19:08:12,563 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:08:12,563 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 19:08:12,563 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2022-04-18 19:08:12,564 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:08:12,564 INFO  L85        PathProgramCache]: Analyzing trace with hash 1571253011, now seen corresponding path program 1 times
[2022-04-18 19:08:12,564 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:08:12,564 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372497207]
[2022-04-18 19:08:12,564 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:08:12,565 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:08:12,605 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 19:08:12,984 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 19:08:12,985 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 19:08:12,985 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372497207]
[2022-04-18 19:08:12,985 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372497207] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 19:08:12,985 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 19:08:12,985 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-04-18 19:08:12,985 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434660353]
[2022-04-18 19:08:12,985 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 19:08:12,986 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-04-18 19:08:12,986 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 19:08:12,986 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-04-18 19:08:12,986 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2022-04-18 19:08:13,000 INFO  L87              Difference]: Start difference. First operand  has 7526 states, 7357 states have (on average 3.080467581894794) internal successors, (22663), 7525 states have internal predecessors, (22663), 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 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 19:08:16,426 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 19:08:16,427 INFO  L93              Difference]: Finished difference Result 7749 states and 22518 transitions.
[2022-04-18 19:08:16,427 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-04-18 19:08:16,427 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10
[2022-04-18 19:08:16,427 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 19:08:16,521 INFO  L225             Difference]: With dead ends: 7749
[2022-04-18 19:08:16,527 INFO  L226             Difference]: Without dead ends: 7749
[2022-04-18 19:08:16,527 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2022-04-18 19:08:16,530 INFO  L913         BasicCegarLoop]: 50 mSDtfsCounter, 90 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2022-04-18 19:08:16,545 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 80 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2022-04-18 19:08:16,560 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7749 states.
[2022-04-18 19:08:16,759 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7749 to 5523.
[2022-04-18 19:08:16,770 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5523 states, 5498 states have (on average 2.9157875591124047) internal successors, (16031), 5522 states have internal predecessors, (16031), 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 19:08:16,813 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 16031 transitions.
[2022-04-18 19:08:16,826 INFO  L78                 Accepts]: Start accepts. Automaton has 5523 states and 16031 transitions. Word has length 10
[2022-04-18 19:08:16,827 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 19:08:16,827 INFO  L478      AbstractCegarLoop]: Abstraction has 5523 states and 16031 transitions.
[2022-04-18 19:08:16,827 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 19:08:16,827 INFO  L276                IsEmpty]: Start isEmpty. Operand 5523 states and 16031 transitions.
[2022-04-18 19:08:16,829 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-18 19:08:16,829 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:08:16,830 INFO  L499         BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1]
[2022-04-18 19:08:16,830 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-04-18 19:08:16,830 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] ===
[2022-04-18 19:08:16,831 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:08:16,832 INFO  L85        PathProgramCache]: Analyzing trace with hash -2014222869, now seen corresponding path program 1 times
[2022-04-18 19:08:16,832 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:08:16,832 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040979171]
[2022-04-18 19:08:16,832 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:08:16,832 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:08:16,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 19:08:16,853 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-18 19:08:16,859 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 19:08:16,871 INFO  L130   FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-04-18 19:08:16,871 INFO  L618         BasicCegarLoop]: Counterexample is feasible
[2022-04-18 19:08:16,872 INFO  L788   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining)
[2022-04-18 19:08:16,872 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining)
[2022-04-18 19:08:16,872 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining)
[2022-04-18 19:08:16,872 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining)
[2022-04-18 19:08:16,872 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining)
[2022-04-18 19:08:16,872 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining)
[2022-04-18 19:08:16,873 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining)
[2022-04-18 19:08:16,873 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining)
[2022-04-18 19:08:16,873 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining)
[2022-04-18 19:08:16,873 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining)
[2022-04-18 19:08:16,873 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining)
[2022-04-18 19:08:16,873 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining)
[2022-04-18 19:08:16,873 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining)
[2022-04-18 19:08:16,874 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining)
[2022-04-18 19:08:16,874 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining)
[2022-04-18 19:08:16,874 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining)
[2022-04-18 19:08:16,874 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining)
[2022-04-18 19:08:16,892 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining)
[2022-04-18 19:08:16,892 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining)
[2022-04-18 19:08:16,892 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining)
[2022-04-18 19:08:16,894 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining)
[2022-04-18 19:08:16,894 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining)
[2022-04-18 19:08:16,895 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining)
[2022-04-18 19:08:16,895 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining)
[2022-04-18 19:08:16,895 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining)
[2022-04-18 19:08:16,895 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-04-18 19:08:16,895 INFO  L719         BasicCegarLoop]: Path program histogram: [1, 1]
[2022-04-18 19:08:16,896 WARN  L232   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2022-04-18 19:08:16,896 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2022-04-18 19:08:16,953 INFO  L135    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-04-18 19:08:16,956 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 19:08:16,958 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 19:08:16,958 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 33 error locations.
[2022-04-18 19:08:16,961 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 19:08:16,961 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 275 places, 293 transitions, 607 flow
[2022-04-18 19:08:16,961 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 275 places, 293 transitions, 607 flow
[2022-04-18 19:08:16,961 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 275 places, 293 transitions, 607 flow
[2022-04-18 19:08:17,116 INFO  L129       PetriNetUnfolder]: 28/330 cut-off events.
[2022-04-18 19:08:17,117 INFO  L130       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2022-04-18 19:08:17,120 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 346 conditions, 330 events. 28/330 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 989 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 265. Up to 8 conditions per place. 
[2022-04-18 19:08:17,135 INFO  L116        LiptonReduction]: Number of co-enabled transitions 49896
[2022-04-18 19:16:20,984 INFO  L131        LiptonReduction]: Checked pairs total: 200864
[2022-04-18 19:16:20,984 INFO  L133        LiptonReduction]: Total number of compositions: 304
[2022-04-18 19:16:20,986 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 124 transitions, 269 flow
[2022-04-18 19:16:27,941 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 270900 states, 269355 states have (on average 4.0893764734272615) internal successors, (1101494), 270899 states have internal predecessors, (1101494), 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 19:16:28,466 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 270900 states, 269355 states have (on average 4.0893764734272615) internal successors, (1101494), 270899 states have internal predecessors, (1101494), 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 19:16:28,467 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2022-04-18 19:16:28,468 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:16:28,468 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 19:16:28,468 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 29 more)] ===
[2022-04-18 19:16:28,469 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:16:28,469 INFO  L85        PathProgramCache]: Analyzing trace with hash 1886568089, now seen corresponding path program 1 times
[2022-04-18 19:16:28,469 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:16:28,469 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907079783]
[2022-04-18 19:16:28,469 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:16:28,469 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:16:28,482 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 19:16:28,872 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 19:16:28,873 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 19:16:28,873 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907079783]
[2022-04-18 19:16:28,873 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907079783] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 19:16:28,873 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 19:16:28,873 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-04-18 19:16:28,873 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820615668]
[2022-04-18 19:16:28,873 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 19:16:28,873 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-04-18 19:16:28,873 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 19:16:28,874 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-04-18 19:16:28,874 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2022-04-18 19:16:29,280 INFO  L87              Difference]: Start difference. First operand  has 270900 states, 269355 states have (on average 4.0893764734272615) internal successors, (1101494), 270899 states have internal predecessors, (1101494), 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 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 19:16:39,120 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 19:16:39,120 INFO  L93              Difference]: Finished difference Result 249250 states and 988506 transitions.
[2022-04-18 19:16:39,121 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-04-18 19:16:39,121 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10
[2022-04-18 19:16:39,121 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 19:16:42,078 INFO  L225             Difference]: With dead ends: 249250
[2022-04-18 19:16:42,079 INFO  L226             Difference]: Without dead ends: 249250
[2022-04-18 19:16:42,079 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2022-04-18 19:16:42,080 INFO  L913         BasicCegarLoop]: 84 mSDtfsCounter, 168 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2022-04-18 19:16:42,080 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 128 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time]
[2022-04-18 19:16:42,539 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 249250 states.
[2022-04-18 19:16:49,591 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 249250 to 178018.
[2022-04-18 19:16:49,879 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 178018 states, 177893 states have (on average 3.9647091228997207) internal successors, (705294), 178017 states have internal predecessors, (705294), 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 19:16:51,488 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 178018 states to 178018 states and 705294 transitions.
[2022-04-18 19:16:51,488 INFO  L78                 Accepts]: Start accepts. Automaton has 178018 states and 705294 transitions. Word has length 10
[2022-04-18 19:16:51,488 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 19:16:51,489 INFO  L478      AbstractCegarLoop]: Abstraction has 178018 states and 705294 transitions.
[2022-04-18 19:16:51,489 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 19:16:51,489 INFO  L276                IsEmpty]: Start isEmpty. Operand 178018 states and 705294 transitions.
[2022-04-18 19:16:51,493 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-04-18 19:16:51,494 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 19:16:51,494 INFO  L499         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 19:16:51,494 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-04-18 19:16:51,494 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 29 more)] ===
[2022-04-18 19:16:51,495 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 19:16:51,495 INFO  L85        PathProgramCache]: Analyzing trace with hash 2075561968, now seen corresponding path program 1 times
[2022-04-18 19:16:51,495 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 19:16:51,495 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67108905]
[2022-04-18 19:16:51,495 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 19:16:51,495 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 19:16:51,534 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 19:16:51,925 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-04-18 19:16:51,925 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 19:16:51,925 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67108905]
[2022-04-18 19:16:51,926 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67108905] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 19:16:51,926 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 19:16:51,926 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-04-18 19:16:51,926 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944205435]
[2022-04-18 19:16:51,926 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 19:16:51,926 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-04-18 19:16:51,926 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 19:16:51,926 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-04-18 19:16:51,926 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2022-04-18 19:16:51,927 INFO  L87              Difference]: Start difference. First operand 178018 states and 705294 transitions. Second operand  has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 19:17:02,003 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 19:17:02,003 INFO  L93              Difference]: Finished difference Result 286808 states and 1135286 transitions.
[2022-04-18 19:17:02,004 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-04-18 19:17:02,004 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 14
[2022-04-18 19:17:02,004 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 19:17:04,687 INFO  L225             Difference]: With dead ends: 286808
[2022-04-18 19:17:04,687 INFO  L226             Difference]: Without dead ends: 286808
[2022-04-18 19:17:04,688 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2022-04-18 19:17:04,688 INFO  L913         BasicCegarLoop]: 81 mSDtfsCounter, 166 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time
[2022-04-18 19:17:04,688 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 121 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time]
[2022-04-18 19:17:05,201 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 286808 states.
[2022-04-18 19:17:12,859 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 286808 to 200708.
[2022-04-18 19:17:13,398 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 200708 states, 200583 states have (on average 3.957842887981534) internal successors, (793876), 200707 states have internal predecessors, (793876), 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)