./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.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-wmm/thin002_rmo.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 f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-efd9311-m
[2022-04-18 20:12:43,609 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-18 20:12:43,611 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-18 20:12:43,654 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-18 20:12:43,654 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-18 20:12:43,656 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-18 20:12:43,657 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-18 20:12:43,660 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-18 20:12:43,662 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-18 20:12:43,666 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-18 20:12:43,667 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-04-18 20:12:43,669 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-18 20:12:43,669 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-18 20:12:43,671 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-18 20:12:43,672 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-18 20:12:43,675 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-18 20:12:43,675 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-18 20:12:43,677 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-18 20:12:43,678 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-18 20:12:43,683 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-18 20:12:43,685 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-18 20:12:43,686 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-18 20:12:43,687 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-18 20:12:43,688 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-18 20:12:43,689 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-18 20:12:43,695 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-18 20:12:43,695 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-18 20:12:43,696 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-18 20:12:43,697 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-18 20:12:43,697 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-18 20:12:43,699 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-18 20:12:43,699 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-18 20:12:43,701 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-18 20:12:43,701 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-18 20:12:43,702 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-18 20:12:43,703 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-18 20:12:43,703 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-18 20:12:43,703 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-18 20:12:43,704 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-18 20:12:43,705 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-18 20:12:43,706 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-18 20:12:43,707 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-18 20:12:43,707 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf
[2022-04-18 20:12:43,737 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-18 20:12:43,738 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-18 20:12:43,738 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-04-18 20:12:43,738 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-04-18 20:12:43,739 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-18 20:12:43,739 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-18 20:12:43,740 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-04-18 20:12:43,740 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-04-18 20:12:43,740 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-04-18 20:12:43,741 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-04-18 20:12:43,741 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-04-18 20:12:43,741 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-04-18 20:12:43,742 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-04-18 20:12:43,742 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-04-18 20:12:43,742 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-04-18 20:12:43,742 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-04-18 20:12:43,743 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-04-18 20:12:43,744 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-04-18 20:12:43,745 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-18 20:12:43,745 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-04-18 20:12:43,745 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-04-18 20:12:43,745 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-18 20:12:43,746 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-04-18 20:12:43,746 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-18 20:12:43,746 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-18 20:12:43,746 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-18 20:12:43,747 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-18 20:12:43,747 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2022-04-18 20:12:43,747 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-04-18 20:12:43,747 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-18 20:12:43,748 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-18 20:12:43,748 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-18 20:12:43,748 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-18 20:12:43,748 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-18 20:12:43,748 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 20:12:43,749 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-18 20:12:43,749 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-04-18 20:12:43,749 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-18 20:12:43,749 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-04-18 20:12:43,749 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-04-18 20:12:43,749 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-18 20:12:43,750 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-04-18 20:12:43,750 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-18 20:12:43,750 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 -> f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4
[2022-04-18 20:12:43,999 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-18 20:12:44,018 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-18 20:12:44,021 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-18 20:12:44,022 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-18 20:12:44,022 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-18 20:12:44,023 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i
[2022-04-18 20:12:44,077 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fc9ecd112/a6f63b24aa834a6481fe03a8f020b90c/FLAG577976598
[2022-04-18 20:12:44,516 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-18 20:12:44,517 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i
[2022-04-18 20:12:44,546 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fc9ecd112/a6f63b24aa834a6481fe03a8f020b90c/FLAG577976598
[2022-04-18 20:12:45,056 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fc9ecd112/a6f63b24aa834a6481fe03a8f020b90c
[2022-04-18 20:12:45,058 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-18 20:12:45,059 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-04-18 20:12:45,060 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-18 20:12:45,060 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-18 20:12:45,063 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-18 20:12:45,063 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:12:45" (1/1) ...
[2022-04-18 20:12:45,064 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ecd95d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45, skipping insertion in model container
[2022-04-18 20:12:45,065 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:12:45" (1/1) ...
[2022-04-18 20:12:45,071 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-18 20:12:45,105 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-18 20:12:45,249 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-wmm/thin002_rmo.i[988,1001]
[2022-04-18 20:12:45,496 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 20:12:45,503 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-18 20:12:45,512 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-wmm/thin002_rmo.i[988,1001]
[2022-04-18 20:12:45,595 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 20:12:45,634 INFO  L208         MainTranslator]: Completed translation
[2022-04-18 20:12:45,634 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45 WrapperNode
[2022-04-18 20:12:45,634 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-18 20:12:45,635 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-04-18 20:12:45,635 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-04-18 20:12:45,636 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-04-18 20:12:45,642 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ...
[2022-04-18 20:12:45,678 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ...
[2022-04-18 20:12:45,726 INFO  L137                Inliner]: procedures = 177, calls = 80, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 339
[2022-04-18 20:12:45,728 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-04-18 20:12:45,730 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-18 20:12:45,730 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-18 20:12:45,731 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-18 20:12:45,738 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ...
[2022-04-18 20:12:45,738 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ...
[2022-04-18 20:12:45,750 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ...
[2022-04-18 20:12:45,752 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ...
[2022-04-18 20:12:45,777 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ...
[2022-04-18 20:12:45,795 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ...
[2022-04-18 20:12:45,799 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ...
[2022-04-18 20:12:45,805 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-18 20:12:45,806 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-18 20:12:45,806 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-18 20:12:45,806 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-18 20:12:45,807 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (1/1) ...
[2022-04-18 20:12:45,812 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 20:12:45,826 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 20:12:45,840 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 20:12:45,866 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 20:12:45,889 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-18 20:12:45,889 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-18 20:12:45,889 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-04-18 20:12:45,889 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-18 20:12:45,889 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-04-18 20:12:45,890 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-18 20:12:45,890 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2022-04-18 20:12:45,890 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2022-04-18 20:12:45,890 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2022-04-18 20:12:45,890 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2022-04-18 20:12:45,890 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2022-04-18 20:12:45,890 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2022-04-18 20:12:45,891 INFO  L130     BoogieDeclarations]: Found specification of procedure P3
[2022-04-18 20:12:45,891 INFO  L138     BoogieDeclarations]: Found implementation of procedure P3
[2022-04-18 20:12:45,891 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-18 20:12:45,891 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-04-18 20:12:45,891 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-18 20:12:45,891 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-18 20:12:45,893 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 20:12:46,123 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-18 20:12:46,124 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-18 20:12:47,201 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-18 20:13:17,392 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-18 20:13:17,393 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2022-04-18 20:13:17,395 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:13:17 BoogieIcfgContainer
[2022-04-18 20:13:17,395 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-18 20:13:17,397 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-18 20:13:17,397 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-18 20:13:17,400 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-18 20:13:17,400 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:12:45" (1/3) ...
[2022-04-18 20:13:17,401 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c74c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:13:17, skipping insertion in model container
[2022-04-18 20:13:17,401 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:12:45" (2/3) ...
[2022-04-18 20:13:17,401 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c74c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:13:17, skipping insertion in model container
[2022-04-18 20:13:17,401 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:13:17" (3/3) ...
[2022-04-18 20:13:17,403 INFO  L111   eAbstractionObserver]: Analyzing ICFG thin002_rmo.i
[2022-04-18 20:13:17,407 WARN  L147   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-04-18 20:13:17,407 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-18 20:13:17,408 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 189 error locations.
[2022-04-18 20:13:17,408 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-04-18 20:13:21,819 INFO  L135    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-04-18 20:13:21,859 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 20:13:21,865 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 20:13:21,865 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 337 error locations.
[2022-04-18 20:13:21,880 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 20:13:21,890 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 357 places, 346 transitions, 712 flow
[2022-04-18 20:13:21,892 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 357 places, 346 transitions, 712 flow
[2022-04-18 20:13:21,894 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 357 places, 346 transitions, 712 flow
[2022-04-18 20:13:22,158 INFO  L129       PetriNetUnfolder]: 2/342 cut-off events.
[2022-04-18 20:13:22,159 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-04-18 20:13:22,168 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 355 conditions, 342 events. 2/342 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 1668 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 279. Up to 2 conditions per place. 
[2022-04-18 20:13:22,195 INFO  L116        LiptonReduction]: Number of co-enabled transitions 48280