./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c --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/weaver/popl20-more-sorted.wvr.c -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 362fd638a164593c63fbfc307f633b7ac4c475762218e6a2237e90d5b6553a84
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-efd9311-m
[2022-04-18 20:21:56,425 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-18 20:21:56,427 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-18 20:21:56,471 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-18 20:21:56,472 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-18 20:21:56,473 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-18 20:21:56,474 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-18 20:21:56,476 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-18 20:21:56,478 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-18 20:21:56,483 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-18 20:21:56,483 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-04-18 20:21:56,485 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-18 20:21:56,485 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-18 20:21:56,487 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-18 20:21:56,488 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-18 20:21:56,491 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-18 20:21:56,492 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-18 20:21:56,493 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-18 20:21:56,495 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-18 20:21:56,500 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-18 20:21:56,502 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-18 20:21:56,503 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-18 20:21:56,504 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-18 20:21:56,504 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-18 20:21:56,505 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-18 20:21:56,507 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-18 20:21:56,507 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-18 20:21:56,508 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-18 20:21:56,508 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-18 20:21:56,509 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-18 20:21:56,510 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-18 20:21:56,510 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-18 20:21:56,511 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-18 20:21:56,512 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-18 20:21:56,512 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-18 20:21:56,513 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-18 20:21:56,513 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-18 20:21:56,514 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-18 20:21:56,514 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-18 20:21:56,514 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-18 20:21:56,515 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-18 20:21:56,516 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-18 20:21:56,517 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf
[2022-04-18 20:21:56,541 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-18 20:21:56,542 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-18 20:21:56,542 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-04-18 20:21:56,542 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-04-18 20:21:56,543 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-18 20:21:56,543 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-18 20:21:56,543 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-04-18 20:21:56,543 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-04-18 20:21:56,543 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-04-18 20:21:56,544 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-04-18 20:21:56,544 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-04-18 20:21:56,544 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-04-18 20:21:56,544 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-04-18 20:21:56,545 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-04-18 20:21:56,545 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-04-18 20:21:56,545 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-04-18 20:21:56,545 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-04-18 20:21:56,545 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-04-18 20:21:56,547 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-18 20:21:56,547 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-04-18 20:21:56,547 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-04-18 20:21:56,547 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-18 20:21:56,547 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-04-18 20:21:56,548 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-18 20:21:56,548 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-18 20:21:56,548 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-18 20:21:56,548 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-18 20:21:56,548 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2022-04-18 20:21:56,549 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-04-18 20:21:56,549 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-18 20:21:56,549 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-18 20:21:56,549 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-18 20:21:56,549 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-18 20:21:56,549 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-18 20:21:56,550 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 20:21:56,550 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-18 20:21:56,550 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-04-18 20:21:56,550 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-18 20:21:56,550 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-04-18 20:21:56,550 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-04-18 20:21:56,551 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-18 20:21:56,551 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-04-18 20:21:56,551 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-18 20:21:56,551 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 -> 362fd638a164593c63fbfc307f633b7ac4c475762218e6a2237e90d5b6553a84
[2022-04-18 20:21:56,766 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-18 20:21:56,783 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-18 20:21:56,786 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-18 20:21:56,787 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-18 20:21:56,787 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-18 20:21:56,788 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c
[2022-04-18 20:21:56,846 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9323556c2/95915622e43041ee8cfbd3b14ba89ee4/FLAGb3bdc383e
[2022-04-18 20:21:57,206 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-18 20:21:57,207 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c
[2022-04-18 20:21:57,212 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9323556c2/95915622e43041ee8cfbd3b14ba89ee4/FLAGb3bdc383e
[2022-04-18 20:21:57,593 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9323556c2/95915622e43041ee8cfbd3b14ba89ee4
[2022-04-18 20:21:57,594 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-18 20:21:57,596 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-04-18 20:21:57,596 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-18 20:21:57,596 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-18 20:21:57,599 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-18 20:21:57,599 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:21:57" (1/1) ...
[2022-04-18 20:21:57,600 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3148383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57, skipping insertion in model container
[2022-04-18 20:21:57,600 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:21:57" (1/1) ...
[2022-04-18 20:21:57,605 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-18 20:21:57,615 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-18 20:21:57,776 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c[2434,2447]
[2022-04-18 20:21:57,781 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 20:21:57,786 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-18 20:21:57,807 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c[2434,2447]
[2022-04-18 20:21:57,815 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 20:21:57,824 INFO  L208         MainTranslator]: Completed translation
[2022-04-18 20:21:57,825 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57 WrapperNode
[2022-04-18 20:21:57,825 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-18 20:21:57,826 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-04-18 20:21:57,826 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-04-18 20:21:57,826 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-04-18 20:21:57,845 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57" (1/1) ...
[2022-04-18 20:21:57,853 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57" (1/1) ...
[2022-04-18 20:21:57,880 INFO  L137                Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 173
[2022-04-18 20:21:57,880 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-04-18 20:21:57,881 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-18 20:21:57,881 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-18 20:21:57,881 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-18 20:21:57,886 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57" (1/1) ...
[2022-04-18 20:21:57,887 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57" (1/1) ...
[2022-04-18 20:21:57,890 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57" (1/1) ...
[2022-04-18 20:21:57,891 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57" (1/1) ...
[2022-04-18 20:21:57,899 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57" (1/1) ...
[2022-04-18 20:21:57,903 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57" (1/1) ...
[2022-04-18 20:21:57,904 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57" (1/1) ...
[2022-04-18 20:21:57,907 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-18 20:21:57,907 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-18 20:21:57,908 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-18 20:21:57,908 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-18 20:21:57,908 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57" (1/1) ...
[2022-04-18 20:21:57,926 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 20:21:57,942 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 20:21:57,957 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 20:21:57,961 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 20:21:58,003 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-18 20:21:58,003 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2022-04-18 20:21:58,003 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2022-04-18 20:21:58,003 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2022-04-18 20:21:58,004 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2022-04-18 20:21:58,004 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2022-04-18 20:21:58,004 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2022-04-18 20:21:58,004 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-18 20:21:58,004 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-04-18 20:21:58,004 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-18 20:21:58,004 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-04-18 20:21:58,004 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-18 20:21:58,005 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-18 20:21:58,005 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-18 20:21:58,005 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-18 20:21:58,006 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 20:21:58,102 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-18 20:21:58,103 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-18 20:21:58,536 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-18 20:21:58,544 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-18 20:21:58,547 INFO  L299             CfgBuilder]: Removed 4 assume(true) statements.
[2022-04-18 20:21:58,550 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:21:58 BoogieIcfgContainer
[2022-04-18 20:21:58,550 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-18 20:21:58,552 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-18 20:21:58,552 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-18 20:21:58,555 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-18 20:21:58,555 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:21:57" (1/3) ...
[2022-04-18 20:21:58,556 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414f4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:21:58, skipping insertion in model container
[2022-04-18 20:21:58,556 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:57" (2/3) ...
[2022-04-18 20:21:58,556 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414f4df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:21:58, skipping insertion in model container
[2022-04-18 20:21:58,556 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:21:58" (3/3) ...
[2022-04-18 20:21:58,558 INFO  L111   eAbstractionObserver]: Analyzing ICFG popl20-more-sorted.wvr.c
[2022-04-18 20:21:58,562 WARN  L147   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-04-18 20:21:58,562 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-18 20:21:58,562 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations.
[2022-04-18 20:21:58,563 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-04-18 20:21:58,658 INFO  L135    ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2022-04-18 20:21:58,704 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 20:21:58,709 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 20:21:58,710 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 64 error locations.
[2022-04-18 20:21:58,722 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 20:21:58,737 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 353 places, 360 transitions, 744 flow
[2022-04-18 20:21:58,742 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 353 places, 360 transitions, 744 flow
[2022-04-18 20:21:58,744 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 353 places, 360 transitions, 744 flow
[2022-04-18 20:21:58,883 INFO  L129       PetriNetUnfolder]: 17/357 cut-off events.
[2022-04-18 20:21:58,884 INFO  L130       PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2022-04-18 20:21:58,891 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 370 conditions, 357 events. 17/357 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 714 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 247. Up to 2 conditions per place. 
[2022-04-18 20:21:58,903 INFO  L116        LiptonReduction]: Number of co-enabled transitions 21474
[2022-04-18 20:22:07,446 INFO  L131        LiptonReduction]: Checked pairs total: 107789
[2022-04-18 20:22:07,446 INFO  L133        LiptonReduction]: Total number of compositions: 386
[2022-04-18 20:22:07,453 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 125 places, 125 transitions, 274 flow
[2022-04-18 20:22:10,406 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 102186 states, 100940 states have (on average 4.10466613829998) internal successors, (414325), 102185 states have internal predecessors, (414325), 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 20:22:10,743 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 102186 states, 100940 states have (on average 4.10466613829998) internal successors, (414325), 102185 states have internal predecessors, (414325), 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 20:22:10,753 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2
[2022-04-18 20:22:10,753 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:10,758 INFO  L499         BasicCegarLoop]: trace histogram [1]
[2022-04-18 20:22:10,758 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:10,775 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:10,776 INFO  L85        PathProgramCache]: Analyzing trace with hash 1335, now seen corresponding path program 1 times
[2022-04-18 20:22:10,799 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:10,800 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743820661]
[2022-04-18 20:22:10,800 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:10,802 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:10,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:10,900 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 20:22:10,900 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:10,901 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743820661]
[2022-04-18 20:22:10,901 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743820661] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 20:22:10,901 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 20:22:10,901 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2022-04-18 20:22:10,903 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135217689]
[2022-04-18 20:22:10,904 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 20:22:10,908 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-18 20:22:10,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:10,925 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-18 20:22:10,926 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 20:22:11,148 INFO  L87              Difference]: Start difference. First operand  has 102186 states, 100940 states have (on average 4.10466613829998) internal successors, (414325), 102185 states have internal predecessors, (414325), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 20:22:12,396 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:12,396 INFO  L93              Difference]: Finished difference Result 54135 states and 213754 transitions.
[2022-04-18 20:22:12,397 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-04-18 20:22:12,398 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1
[2022-04-18 20:22:12,399 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:12,846 INFO  L225             Difference]: With dead ends: 54135
[2022-04-18 20:22:12,847 INFO  L226             Difference]: Without dead ends: 54132
[2022-04-18 20:22:12,848 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 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 20:22:12,850 INFO  L913         BasicCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:12,852 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 20:22:13,120 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54132 states.
[2022-04-18 20:22:14,897 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54132 to 54132.
[2022-04-18 20:22:15,064 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 54132 states, 54017 states have (on average 3.9570690708480663) internal successors, (213749), 54131 states have internal predecessors, (213749), 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 20:22:15,734 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54132 states to 54132 states and 213749 transitions.
[2022-04-18 20:22:15,746 INFO  L78                 Accepts]: Start accepts. Automaton has 54132 states and 213749 transitions. Word has length 1
[2022-04-18 20:22:15,747 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:15,747 INFO  L478      AbstractCegarLoop]: Abstraction has 54132 states and 213749 transitions.
[2022-04-18 20:22:15,747 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 20:22:15,748 INFO  L276                IsEmpty]: Start isEmpty. Operand 54132 states and 213749 transitions.
[2022-04-18 20:22:15,748 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-04-18 20:22:15,748 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:15,749 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:15,749 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-18 20:22:15,749 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:15,750 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:15,750 INFO  L85        PathProgramCache]: Analyzing trace with hash -786590863, now seen corresponding path program 1 times
[2022-04-18 20:22:15,750 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:15,750 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959488578]
[2022-04-18 20:22:15,750 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:15,751 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:15,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:15,841 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 20:22:15,842 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:15,842 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959488578]
[2022-04-18 20:22:15,842 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959488578] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 20:22:15,843 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 20:22:15,843 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 20:22:15,843 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991853973]
[2022-04-18 20:22:15,843 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 20:22:15,844 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 20:22:15,844 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:15,845 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 20:22:15,845 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 20:22:15,845 INFO  L87              Difference]: Start difference. First operand 54132 states and 213749 transitions. Second operand  has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 20:22:16,392 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:16,392 INFO  L93              Difference]: Finished difference Result 51434 states and 203214 transitions.
[2022-04-18 20:22:16,392 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 20:22:16,393 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9
[2022-04-18 20:22:16,393 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:17,032 INFO  L225             Difference]: With dead ends: 51434
[2022-04-18 20:22:17,032 INFO  L226             Difference]: Without dead ends: 51434
[2022-04-18 20:22:17,033 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 20:22:17,034 INFO  L913         BasicCegarLoop]: 68 mSDtfsCounter, 55 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:17,034 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 109 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 20:22:17,139 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51434 states.
[2022-04-18 20:22:18,395 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51434 to 51434.
[2022-04-18 20:22:18,644 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51434 states, 51347 states have (on average 3.957660622821197) internal successors, (203214), 51433 states have internal predecessors, (203214), 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 20:22:18,873 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51434 states to 51434 states and 203214 transitions.
[2022-04-18 20:22:18,874 INFO  L78                 Accepts]: Start accepts. Automaton has 51434 states and 203214 transitions. Word has length 9
[2022-04-18 20:22:18,875 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:18,875 INFO  L478      AbstractCegarLoop]: Abstraction has 51434 states and 203214 transitions.
[2022-04-18 20:22:18,875 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 20:22:18,875 INFO  L276                IsEmpty]: Start isEmpty. Operand 51434 states and 203214 transitions.
[2022-04-18 20:22:18,877 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-18 20:22:18,877 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:18,877 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:18,877 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-04-18 20:22:18,878 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:18,878 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:18,878 INFO  L85        PathProgramCache]: Analyzing trace with hash 2036731705, now seen corresponding path program 1 times
[2022-04-18 20:22:18,879 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:18,879 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863995246]
[2022-04-18 20:22:18,879 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:18,879 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:18,904 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:18,958 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 20:22:18,958 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:18,958 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863995246]
[2022-04-18 20:22:18,958 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863995246] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 20:22:18,959 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 20:22:18,959 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 20:22:18,959 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269640380]
[2022-04-18 20:22:18,959 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 20:22:18,959 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 20:22:18,959 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:18,959 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 20:22:18,959 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 20:22:18,960 INFO  L87              Difference]: Start difference. First operand 51434 states and 203214 transitions. Second operand  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 20:22:19,660 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:19,661 INFO  L93              Difference]: Finished difference Result 51435 states and 203215 transitions.
[2022-04-18 20:22:19,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 20:22:19,661 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 11
[2022-04-18 20:22:19,661 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:19,961 INFO  L225             Difference]: With dead ends: 51435
[2022-04-18 20:22:19,961 INFO  L226             Difference]: Without dead ends: 51435
[2022-04-18 20:22:19,962 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 20:22:19,962 INFO  L913         BasicCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:19,963 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 20:22:20,089 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51435 states.
[2022-04-18 20:22:21,482 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51435 to 51435.
[2022-04-18 20:22:21,565 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51435 states, 51348 states have (on average 3.957603022513048) internal successors, (203215), 51434 states have internal predecessors, (203215), 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 20:22:22,150 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51435 states to 51435 states and 203215 transitions.
[2022-04-18 20:22:22,151 INFO  L78                 Accepts]: Start accepts. Automaton has 51435 states and 203215 transitions. Word has length 11
[2022-04-18 20:22:22,152 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:22,152 INFO  L478      AbstractCegarLoop]: Abstraction has 51435 states and 203215 transitions.
[2022-04-18 20:22:22,152 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 20:22:22,152 INFO  L276                IsEmpty]: Start isEmpty. Operand 51435 states and 203215 transitions.
[2022-04-18 20:22:22,158 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-04-18 20:22:22,158 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:22,158 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:22,158 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-04-18 20:22:22,160 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:22,160 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:22,161 INFO  L85        PathProgramCache]: Analyzing trace with hash 713500049, now seen corresponding path program 1 times
[2022-04-18 20:22:22,161 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:22,161 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487333835]
[2022-04-18 20:22:22,161 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:22,161 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:22,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:22,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-04-18 20:22:22,345 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:22,346 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487333835]
[2022-04-18 20:22:22,346 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487333835] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 20:22:22,346 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 20:22:22,346 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-18 20:22:22,347 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951252557]
[2022-04-18 20:22:22,347 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 20:22:22,347 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-04-18 20:22:22,349 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:22,349 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-04-18 20:22:22,350 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:22,350 INFO  L87              Difference]: Start difference. First operand 51435 states and 203215 transitions. Second operand  has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 20:22:23,014 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:23,015 INFO  L93              Difference]: Finished difference Result 44576 states and 174696 transitions.
[2022-04-18 20:22:23,015 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-04-18 20:22:23,015 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 12
[2022-04-18 20:22:23,015 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:23,226 INFO  L225             Difference]: With dead ends: 44576
[2022-04-18 20:22:23,226 INFO  L226             Difference]: Without dead ends: 44576
[2022-04-18 20:22:23,226 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:23,227 INFO  L913         BasicCegarLoop]: 50 mSDtfsCounter, 105 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:23,227 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 71 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-04-18 20:22:23,321 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44576 states.
[2022-04-18 20:22:24,508 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44576 to 44576.
[2022-04-18 20:22:24,578 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44576 states, 44525 states have (on average 3.923548568220101) internal successors, (174696), 44575 states have internal predecessors, (174696), 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 20:22:25,154 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44576 states to 44576 states and 174696 transitions.
[2022-04-18 20:22:25,154 INFO  L78                 Accepts]: Start accepts. Automaton has 44576 states and 174696 transitions. Word has length 12
[2022-04-18 20:22:25,155 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:25,155 INFO  L478      AbstractCegarLoop]: Abstraction has 44576 states and 174696 transitions.
[2022-04-18 20:22:25,156 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 20:22:25,156 INFO  L276                IsEmpty]: Start isEmpty. Operand 44576 states and 174696 transitions.
[2022-04-18 20:22:25,157 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-04-18 20:22:25,157 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:25,157 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:25,157 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-04-18 20:22:25,158 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:25,159 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:25,161 INFO  L85        PathProgramCache]: Analyzing trace with hash 1226079642, now seen corresponding path program 1 times
[2022-04-18 20:22:25,161 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:25,162 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406266676]
[2022-04-18 20:22:25,162 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:25,163 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:25,178 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:25,210 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 20:22:25,211 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:25,211 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406266676]
[2022-04-18 20:22:25,211 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406266676] provided 0 perfect and 1 imperfect interpolant sequences
[2022-04-18 20:22:25,211 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873902898]
[2022-04-18 20:22:25,211 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:25,212 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-18 20:22:25,212 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 20:22:25,213 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-04-18 20:22:25,217 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-04-18 20:22:25,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:25,288 INFO  L263         TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-04-18 20:22:25,292 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-04-18 20:22:25,415 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 20:22:25,415 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-04-18 20:22:25,478 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 20:22:25,478 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [873902898] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-18 20:22:25,478 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1425055625]
[2022-04-18 20:22:25,485 FATAL L?                        ?]: Ignoring exception!
java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
	at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.<init>(PathProgram.java:235)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.<init>(SifaRunner.java:91)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:153)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2022-04-18 20:22:25,486 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-04-18 20:22:25,486 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11
[2022-04-18 20:22:25,487 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68119229]
[2022-04-18 20:22:25,487 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-04-18 20:22:25,487 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-04-18 20:22:25,487 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:25,488 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-04-18 20:22:25,488 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132
[2022-04-18 20:22:25,488 INFO  L87              Difference]: Start difference. First operand 44576 states and 174696 transitions. Second operand  has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 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 20:22:26,181 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:26,181 INFO  L93              Difference]: Finished difference Result 56060 states and 215213 transitions.
[2022-04-18 20:22:26,181 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-04-18 20:22:26,182 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 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 12
[2022-04-18 20:22:26,182 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:26,483 INFO  L225             Difference]: With dead ends: 56060
[2022-04-18 20:22:26,484 INFO  L226             Difference]: Without dead ends: 56060
[2022-04-18 20:22:26,484 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182
[2022-04-18 20:22:26,484 INFO  L913         BasicCegarLoop]: 64 mSDtfsCounter, 249 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:26,485 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 399 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-04-18 20:22:26,613 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56060 states.
[2022-04-18 20:22:27,976 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56060 to 51196.
[2022-04-18 20:22:28,061 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51196 states, 51145 states have (on average 3.9231987486557824) internal successors, (200652), 51195 states have internal predecessors, (200652), 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 20:22:28,600 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51196 states to 51196 states and 200652 transitions.
[2022-04-18 20:22:28,600 INFO  L78                 Accepts]: Start accepts. Automaton has 51196 states and 200652 transitions. Word has length 12
[2022-04-18 20:22:28,600 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:28,600 INFO  L478      AbstractCegarLoop]: Abstraction has 51196 states and 200652 transitions.
[2022-04-18 20:22:28,600 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 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 20:22:28,600 INFO  L276                IsEmpty]: Start isEmpty. Operand 51196 states and 200652 transitions.
[2022-04-18 20:22:28,602 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2022-04-18 20:22:28,602 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:28,602 INFO  L499         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:28,619 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-04-18 20:22:28,802 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-18 20:22:28,806 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:28,807 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:28,807 INFO  L85        PathProgramCache]: Analyzing trace with hash -1139396030, now seen corresponding path program 2 times
[2022-04-18 20:22:28,807 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:28,807 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251223647]
[2022-04-18 20:22:28,807 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:28,808 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:28,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:28,880 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-04-18 20:22:28,882 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:28,882 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251223647]
[2022-04-18 20:22:28,882 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251223647] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 20:22:28,882 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 20:22:28,882 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-18 20:22:28,882 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725966723]
[2022-04-18 20:22:28,882 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 20:22:28,883 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-04-18 20:22:28,883 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:28,883 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-04-18 20:22:28,884 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:28,884 INFO  L87              Difference]: Start difference. First operand 51196 states and 200652 transitions. Second operand  has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 20:22:29,501 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:29,501 INFO  L93              Difference]: Finished difference Result 51196 states and 200652 transitions.
[2022-04-18 20:22:29,502 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-04-18 20:22:29,502 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 13
[2022-04-18 20:22:29,502 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:29,741 INFO  L225             Difference]: With dead ends: 51196
[2022-04-18 20:22:29,741 INFO  L226             Difference]: Without dead ends: 51196
[2022-04-18 20:22:29,741 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:29,742 INFO  L913         BasicCegarLoop]: 49 mSDtfsCounter, 84 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:29,742 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 65 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-04-18 20:22:29,843 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51196 states.
[2022-04-18 20:22:31,017 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51196 to 48990.
[2022-04-18 20:22:31,092 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 48990 states, 48951 states have (on average 3.922310065167208) internal successors, (192001), 48989 states have internal predecessors, (192001), 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 20:22:31,608 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 48990 states to 48990 states and 192001 transitions.
[2022-04-18 20:22:31,609 INFO  L78                 Accepts]: Start accepts. Automaton has 48990 states and 192001 transitions. Word has length 13
[2022-04-18 20:22:31,609 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:31,609 INFO  L478      AbstractCegarLoop]: Abstraction has 48990 states and 192001 transitions.
[2022-04-18 20:22:31,609 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 20:22:31,609 INFO  L276                IsEmpty]: Start isEmpty. Operand 48990 states and 192001 transitions.
[2022-04-18 20:22:31,611 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2022-04-18 20:22:31,611 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:31,611 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:31,611 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-04-18 20:22:31,612 INFO  L403      AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:31,612 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:31,612 INFO  L85        PathProgramCache]: Analyzing trace with hash 344225015, now seen corresponding path program 1 times
[2022-04-18 20:22:31,612 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:31,612 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456256031]
[2022-04-18 20:22:31,612 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:31,613 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:31,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:31,653 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-04-18 20:22:31,653 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:31,653 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456256031]
[2022-04-18 20:22:31,653 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456256031] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 20:22:31,654 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 20:22:31,654 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 20:22:31,654 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966795959]
[2022-04-18 20:22:31,654 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 20:22:31,654 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 20:22:31,654 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:31,655 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 20:22:31,655 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 20:22:31,655 INFO  L87              Difference]: Start difference. First operand 48990 states and 192001 transitions. Second operand  has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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 20:22:32,051 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:32,051 INFO  L93              Difference]: Finished difference Result 46456 states and 182164 transitions.
[2022-04-18 20:22:32,051 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 20:22:32,051 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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 13
[2022-04-18 20:22:32,052 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:32,295 INFO  L225             Difference]: With dead ends: 46456
[2022-04-18 20:22:32,295 INFO  L226             Difference]: Without dead ends: 46456
[2022-04-18 20:22:32,295 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 20:22:32,296 INFO  L913         BasicCegarLoop]: 72 mSDtfsCounter, 58 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:32,296 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 112 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 20:22:32,400 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46456 states.
[2022-04-18 20:22:33,547 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46456 to 46456.
[2022-04-18 20:22:33,618 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 46456 states, 46427 states have (on average 3.9236651086652166) internal successors, (182164), 46455 states have internal predecessors, (182164), 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 20:22:33,804 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 46456 states to 46456 states and 182164 transitions.
[2022-04-18 20:22:33,805 INFO  L78                 Accepts]: Start accepts. Automaton has 46456 states and 182164 transitions. Word has length 13
[2022-04-18 20:22:33,806 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:33,806 INFO  L478      AbstractCegarLoop]: Abstraction has 46456 states and 182164 transitions.
[2022-04-18 20:22:33,806 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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 20:22:33,806 INFO  L276                IsEmpty]: Start isEmpty. Operand 46456 states and 182164 transitions.
[2022-04-18 20:22:33,808 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-04-18 20:22:33,808 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:33,808 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:33,808 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-04-18 20:22:33,809 INFO  L403      AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:33,809 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:33,809 INFO  L85        PathProgramCache]: Analyzing trace with hash -443091803, now seen corresponding path program 1 times
[2022-04-18 20:22:33,809 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:33,809 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708185713]
[2022-04-18 20:22:33,809 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:33,810 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:33,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:33,858 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-04-18 20:22:33,858 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:33,858 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708185713]
[2022-04-18 20:22:33,858 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708185713] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 20:22:33,858 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 20:22:33,859 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-18 20:22:33,859 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587754808]
[2022-04-18 20:22:33,859 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 20:22:33,859 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-04-18 20:22:33,859 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:33,860 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-04-18 20:22:33,860 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:33,860 INFO  L87              Difference]: Start difference. First operand 46456 states and 182164 transitions. Second operand  has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 20:22:34,854 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:34,854 INFO  L93              Difference]: Finished difference Result 46456 states and 182164 transitions.
[2022-04-18 20:22:34,854 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-04-18 20:22:34,855 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 20:22:34,855 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:35,076 INFO  L225             Difference]: With dead ends: 46456
[2022-04-18 20:22:35,076 INFO  L226             Difference]: Without dead ends: 46456
[2022-04-18 20:22:35,077 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:35,077 INFO  L913         BasicCegarLoop]: 45 mSDtfsCounter, 78 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:35,077 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 63 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-04-18 20:22:35,168 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46456 states.
[2022-04-18 20:22:36,331 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46456 to 44020.
[2022-04-18 20:22:36,400 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 44020 states, 44000 states have (on average 3.9255227272727273) internal successors, (172723), 44019 states have internal predecessors, (172723), 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 20:22:36,570 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 44020 states to 44020 states and 172723 transitions.
[2022-04-18 20:22:36,570 INFO  L78                 Accepts]: Start accepts. Automaton has 44020 states and 172723 transitions. Word has length 14
[2022-04-18 20:22:36,571 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:36,571 INFO  L478      AbstractCegarLoop]: Abstraction has 44020 states and 172723 transitions.
[2022-04-18 20:22:36,571 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 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 20:22:36,571 INFO  L276                IsEmpty]: Start isEmpty. Operand 44020 states and 172723 transitions.
[2022-04-18 20:22:36,575 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-04-18 20:22:36,575 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:36,575 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:36,575 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-04-18 20:22:36,575 INFO  L403      AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:36,576 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:36,576 INFO  L85        PathProgramCache]: Analyzing trace with hash -1652490519, now seen corresponding path program 1 times
[2022-04-18 20:22:36,576 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:36,576 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795482788]
[2022-04-18 20:22:36,576 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:36,576 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:36,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:36,638 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 20:22:36,638 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:36,638 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795482788]
[2022-04-18 20:22:36,638 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795482788] provided 0 perfect and 1 imperfect interpolant sequences
[2022-04-18 20:22:36,638 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360897793]
[2022-04-18 20:22:36,639 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:36,639 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-18 20:22:36,639 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 20:22:36,640 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-04-18 20:22:36,641 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-04-18 20:22:36,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:36,713 INFO  L263         TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjunts are in the unsatisfiable core
[2022-04-18 20:22:36,714 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-04-18 20:22:36,805 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 20:22:36,806 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-04-18 20:22:36,858 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 20:22:36,858 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360897793] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-18 20:22:36,858 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [914232724]
[2022-04-18 20:22:36,859 FATAL L?                        ?]: Ignoring exception!
java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
	at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.<init>(PathProgram.java:235)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.<init>(SifaRunner.java:91)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:153)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2022-04-18 20:22:36,860 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-04-18 20:22:36,860 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11
[2022-04-18 20:22:36,860 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265808362]
[2022-04-18 20:22:36,860 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-04-18 20:22:36,861 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-04-18 20:22:36,861 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:36,861 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-04-18 20:22:36,861 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2022-04-18 20:22:36,861 INFO  L87              Difference]: Start difference. First operand 44020 states and 172723 transitions. Second operand  has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 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 20:22:37,339 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:37,339 INFO  L93              Difference]: Finished difference Result 41049 states and 159081 transitions.
[2022-04-18 20:22:37,340 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-04-18 20:22:37,340 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 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 16
[2022-04-18 20:22:37,340 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:37,500 INFO  L225             Difference]: With dead ends: 41049
[2022-04-18 20:22:37,501 INFO  L226             Difference]: Without dead ends: 41041
[2022-04-18 20:22:37,501 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182
[2022-04-18 20:22:37,501 INFO  L913         BasicCegarLoop]: 72 mSDtfsCounter, 336 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:37,502 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 500 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-04-18 20:22:37,583 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41041 states.
[2022-04-18 20:22:38,818 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41041 to 40802.
[2022-04-18 20:22:38,886 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40802 states, 40782 states have (on average 3.888946103673189) internal successors, (158599), 40801 states have internal predecessors, (158599), 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 20:22:39,070 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40802 states to 40802 states and 158599 transitions.
[2022-04-18 20:22:39,070 INFO  L78                 Accepts]: Start accepts. Automaton has 40802 states and 158599 transitions. Word has length 16
[2022-04-18 20:22:39,070 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:39,070 INFO  L478      AbstractCegarLoop]: Abstraction has 40802 states and 158599 transitions.
[2022-04-18 20:22:39,070 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 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 20:22:39,071 INFO  L276                IsEmpty]: Start isEmpty. Operand 40802 states and 158599 transitions.
[2022-04-18 20:22:39,076 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-04-18 20:22:39,076 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:39,076 INFO  L499         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:39,094 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-04-18 20:22:39,289 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-18 20:22:39,290 INFO  L403      AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:39,290 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:39,290 INFO  L85        PathProgramCache]: Analyzing trace with hash -1714937967, now seen corresponding path program 2 times
[2022-04-18 20:22:39,290 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:39,290 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906268970]
[2022-04-18 20:22:39,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:39,291 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:39,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:39,357 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-04-18 20:22:39,357 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:39,357 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906268970]
[2022-04-18 20:22:39,358 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906268970] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 20:22:39,358 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 20:22:39,358 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-18 20:22:39,358 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618254878]
[2022-04-18 20:22:39,358 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 20:22:39,358 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-04-18 20:22:39,359 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:39,359 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-04-18 20:22:39,359 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:39,359 INFO  L87              Difference]: Start difference. First operand 40802 states and 158599 transitions. Second operand  has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 20:22:40,423 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:40,423 INFO  L93              Difference]: Finished difference Result 40802 states and 158599 transitions.
[2022-04-18 20:22:40,424 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-04-18 20:22:40,424 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 17
[2022-04-18 20:22:40,424 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:40,601 INFO  L225             Difference]: With dead ends: 40802
[2022-04-18 20:22:40,601 INFO  L226             Difference]: Without dead ends: 40802
[2022-04-18 20:22:40,601 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:40,602 INFO  L913         BasicCegarLoop]: 46 mSDtfsCounter, 77 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:40,602 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 70 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-04-18 20:22:40,682 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40802 states.
[2022-04-18 20:22:41,713 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40802 to 38725.
[2022-04-18 20:22:41,762 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 38725 states, 38712 states have (on average 3.8885100227319693) internal successors, (150532), 38724 states have internal predecessors, (150532), 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 20:22:41,902 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 38725 states to 38725 states and 150532 transitions.
[2022-04-18 20:22:41,902 INFO  L78                 Accepts]: Start accepts. Automaton has 38725 states and 150532 transitions. Word has length 17
[2022-04-18 20:22:41,903 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:41,903 INFO  L478      AbstractCegarLoop]: Abstraction has 38725 states and 150532 transitions.
[2022-04-18 20:22:41,903 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 20:22:41,903 INFO  L276                IsEmpty]: Start isEmpty. Operand 38725 states and 150532 transitions.
[2022-04-18 20:22:41,911 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-04-18 20:22:41,911 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:41,911 INFO  L499         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:41,911 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-04-18 20:22:41,912 INFO  L403      AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:41,912 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:41,912 INFO  L85        PathProgramCache]: Analyzing trace with hash -438303007, now seen corresponding path program 1 times
[2022-04-18 20:22:41,912 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:41,912 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263063048]
[2022-04-18 20:22:41,912 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:41,913 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:41,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:41,967 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-04-18 20:22:41,968 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:41,968 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263063048]
[2022-04-18 20:22:41,968 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263063048] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 20:22:41,968 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 20:22:41,968 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-18 20:22:41,968 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120198070]
[2022-04-18 20:22:41,968 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 20:22:41,969 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-04-18 20:22:41,969 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:41,969 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-04-18 20:22:41,969 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:41,969 INFO  L87              Difference]: Start difference. First operand 38725 states and 150532 transitions. Second operand  has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 20:22:42,462 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:42,463 INFO  L93              Difference]: Finished difference Result 38725 states and 150532 transitions.
[2022-04-18 20:22:42,463 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-04-18 20:22:42,463 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 19
[2022-04-18 20:22:42,463 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:42,614 INFO  L225             Difference]: With dead ends: 38725
[2022-04-18 20:22:42,615 INFO  L226             Difference]: Without dead ends: 38725
[2022-04-18 20:22:42,615 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:42,615 INFO  L913         BasicCegarLoop]: 49 mSDtfsCounter, 75 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:42,616 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 62 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-04-18 20:22:42,693 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 38725 states.
[2022-04-18 20:22:43,657 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 38725 to 36851.
[2022-04-18 20:22:43,713 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 36851 states, 36842 states have (on average 3.8860539601541717) internal successors, (143170), 36850 states have internal predecessors, (143170), 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 20:22:43,848 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36851 states to 36851 states and 143170 transitions.
[2022-04-18 20:22:43,848 INFO  L78                 Accepts]: Start accepts. Automaton has 36851 states and 143170 transitions. Word has length 19
[2022-04-18 20:22:43,848 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:43,848 INFO  L478      AbstractCegarLoop]: Abstraction has 36851 states and 143170 transitions.
[2022-04-18 20:22:43,848 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 20:22:43,848 INFO  L276                IsEmpty]: Start isEmpty. Operand 36851 states and 143170 transitions.
[2022-04-18 20:22:43,858 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2022-04-18 20:22:43,858 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:43,858 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:43,858 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2022-04-18 20:22:43,858 INFO  L403      AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:43,858 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:43,858 INFO  L85        PathProgramCache]: Analyzing trace with hash 1611424808, now seen corresponding path program 1 times
[2022-04-18 20:22:43,859 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:43,859 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378698243]
[2022-04-18 20:22:43,859 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:43,859 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:43,870 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:43,897 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 20:22:43,898 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:43,898 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378698243]
[2022-04-18 20:22:43,898 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378698243] provided 0 perfect and 1 imperfect interpolant sequences
[2022-04-18 20:22:43,898 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545999104]
[2022-04-18 20:22:43,898 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:43,898 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-18 20:22:43,899 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 20:22:43,899 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-04-18 20:22:43,900 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-04-18 20:22:43,990 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:43,991 INFO  L263         TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 8 conjunts are in the unsatisfiable core
[2022-04-18 20:22:43,992 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-04-18 20:22:44,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 20:22:44,053 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-04-18 20:22:44,110 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 20:22:44,111 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545999104] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-18 20:22:44,111 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [573423779]
[2022-04-18 20:22:44,111 FATAL L?                        ?]: Ignoring exception!
java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
	at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.<init>(PathProgram.java:235)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.<init>(SifaRunner.java:91)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137)
	at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:153)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2022-04-18 20:22:44,112 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-04-18 20:22:44,112 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11
[2022-04-18 20:22:44,112 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124414852]
[2022-04-18 20:22:44,112 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-04-18 20:22:44,113 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-04-18 20:22:44,113 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:44,113 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-04-18 20:22:44,113 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132
[2022-04-18 20:22:44,113 INFO  L87              Difference]: Start difference. First operand 36851 states and 143170 transitions. Second operand  has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 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 20:22:44,549 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:44,549 INFO  L93              Difference]: Finished difference Result 34808 states and 135948 transitions.
[2022-04-18 20:22:44,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-04-18 20:22:44,550 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 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 20
[2022-04-18 20:22:44,550 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:44,684 INFO  L225             Difference]: With dead ends: 34808
[2022-04-18 20:22:44,684 INFO  L226             Difference]: Without dead ends: 34808
[2022-04-18 20:22:44,685 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182
[2022-04-18 20:22:44,685 INFO  L913         BasicCegarLoop]: 66 mSDtfsCounter, 205 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:44,685 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 527 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-04-18 20:22:45,156 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 34808 states.
[2022-04-18 20:22:45,865 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 34808 to 34790.
[2022-04-18 20:22:45,918 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 34790 states, 34781 states have (on average 3.90819700411144) internal successors, (135931), 34789 states have internal predecessors, (135931), 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 20:22:46,050 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 34790 states to 34790 states and 135931 transitions.
[2022-04-18 20:22:46,051 INFO  L78                 Accepts]: Start accepts. Automaton has 34790 states and 135931 transitions. Word has length 20
[2022-04-18 20:22:46,051 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:46,051 INFO  L478      AbstractCegarLoop]: Abstraction has 34790 states and 135931 transitions.
[2022-04-18 20:22:46,051 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 11 states have internal predecessors, (32), 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 20:22:46,051 INFO  L276                IsEmpty]: Start isEmpty. Operand 34790 states and 135931 transitions.
[2022-04-18 20:22:46,060 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-04-18 20:22:46,060 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:46,060 INFO  L499         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:46,079 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-04-18 20:22:46,261 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2022-04-18 20:22:46,261 INFO  L403      AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:46,262 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:46,262 INFO  L85        PathProgramCache]: Analyzing trace with hash -1392316208, now seen corresponding path program 2 times
[2022-04-18 20:22:46,262 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:46,262 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258046392]
[2022-04-18 20:22:46,262 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:46,262 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:46,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:46,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2022-04-18 20:22:46,344 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:46,344 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258046392]
[2022-04-18 20:22:46,344 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258046392] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 20:22:46,344 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 20:22:46,344 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-18 20:22:46,345 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431622611]
[2022-04-18 20:22:46,345 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 20:22:46,345 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-04-18 20:22:46,345 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:46,345 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-04-18 20:22:46,346 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:46,346 INFO  L87              Difference]: Start difference. First operand 34790 states and 135931 transitions. Second operand  has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 20:22:47,310 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:47,310 INFO  L93              Difference]: Finished difference Result 34790 states and 135931 transitions.
[2022-04-18 20:22:47,310 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-04-18 20:22:47,311 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 21
[2022-04-18 20:22:47,312 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:47,455 INFO  L225             Difference]: With dead ends: 34790
[2022-04-18 20:22:47,455 INFO  L226             Difference]: Without dead ends: 34790
[2022-04-18 20:22:47,462 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:47,462 INFO  L913         BasicCegarLoop]: 49 mSDtfsCounter, 73 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:47,463 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 76 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-04-18 20:22:47,528 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 34790 states.
[2022-04-18 20:22:48,148 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 34790 to 32903.
[2022-04-18 20:22:48,200 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32903 states, 32898 states have (on average 3.909416985835005) internal successors, (128612), 32902 states have internal predecessors, (128612), 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 20:22:48,327 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32903 states to 32903 states and 128612 transitions.
[2022-04-18 20:22:48,327 INFO  L78                 Accepts]: Start accepts. Automaton has 32903 states and 128612 transitions. Word has length 21
[2022-04-18 20:22:48,327 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 20:22:48,327 INFO  L478      AbstractCegarLoop]: Abstraction has 32903 states and 128612 transitions.
[2022-04-18 20:22:48,327 INFO  L479      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 20:22:48,327 INFO  L276                IsEmpty]: Start isEmpty. Operand 32903 states and 128612 transitions.
[2022-04-18 20:22:48,337 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2022-04-18 20:22:48,337 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 20:22:48,337 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 20:22:48,337 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2022-04-18 20:22:48,337 INFO  L403      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] ===
[2022-04-18 20:22:48,338 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 20:22:48,338 INFO  L85        PathProgramCache]: Analyzing trace with hash -1696401786, now seen corresponding path program 1 times
[2022-04-18 20:22:48,338 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 20:22:48,338 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152257516]
[2022-04-18 20:22:48,338 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 20:22:48,338 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 20:22:48,351 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 20:22:48,379 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-04-18 20:22:48,379 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 20:22:48,379 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152257516]
[2022-04-18 20:22:48,380 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152257516] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 20:22:48,380 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 20:22:48,380 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-18 20:22:48,380 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124461158]
[2022-04-18 20:22:48,380 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 20:22:48,380 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-04-18 20:22:48,381 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 20:22:48,381 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-04-18 20:22:48,381 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:48,381 INFO  L87              Difference]: Start difference. First operand 32903 states and 128612 transitions. Second operand  has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 20:22:49,029 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 20:22:49,030 INFO  L93              Difference]: Finished difference Result 32595 states and 127661 transitions.
[2022-04-18 20:22:49,030 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-04-18 20:22:49,030 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 21
[2022-04-18 20:22:49,030 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 20:22:49,149 INFO  L225             Difference]: With dead ends: 32595
[2022-04-18 20:22:49,149 INFO  L226             Difference]: Without dead ends: 32595
[2022-04-18 20:22:49,150 INFO  L912         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 20:22:49,150 INFO  L913         BasicCegarLoop]: 44 mSDtfsCounter, 66 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-04-18 20:22:49,150 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 58 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-04-18 20:22:49,214 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 32595 states.
[2022-04-18 20:22:49,804 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 32595 to 32595.
[2022-04-18 20:22:49,852 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32595 states, 32592 states have (on average 3.9169428080510555) internal successors, (127661), 32594 states have internal predecessors, (127661), 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)