./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for data races
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 74892b4fb04a6fe0e809c110df08d9da57c5c90ea65da5b04a32432686fc90f8
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-09 07:20:10,594 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-09 07:20:10,704 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf
[2024-11-09 07:20:10,712 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-09 07:20:10,714 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-09 07:20:10,757 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-09 07:20:10,758 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-09 07:20:10,759 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-09 07:20:10,760 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-09 07:20:10,761 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-09 07:20:10,762 INFO  L153        SettingsManager]:  * User list type=DISABLED
[2024-11-09 07:20:10,763 INFO  L151        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2024-11-09 07:20:10,764 INFO  L153        SettingsManager]:  * Explicit value domain=true
[2024-11-09 07:20:10,764 INFO  L153        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2024-11-09 07:20:10,767 INFO  L153        SettingsManager]:  * Octagon Domain=false
[2024-11-09 07:20:10,767 INFO  L153        SettingsManager]:  * Abstract domain=CompoundDomain
[2024-11-09 07:20:10,768 INFO  L153        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2024-11-09 07:20:10,768 INFO  L153        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2024-11-09 07:20:10,768 INFO  L153        SettingsManager]:  * Interval Domain=false
[2024-11-09 07:20:10,769 INFO  L151        SettingsManager]: Preferences of Sifa differ from their defaults:
[2024-11-09 07:20:10,769 INFO  L153        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2024-11-09 07:20:10,773 INFO  L153        SettingsManager]:  * Simplification Technique=POLY_PAC
[2024-11-09 07:20:10,774 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-09 07:20:10,774 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-09 07:20:10,774 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-09 07:20:10,775 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-09 07:20:10,775 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-09 07:20:10,775 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-09 07:20:10,776 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-09 07:20:10,776 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-09 07:20:10,776 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-09 07:20:10,778 INFO  L153        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2024-11-09 07:20:10,779 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-09 07:20:10,780 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2024-11-09 07:20:10,781 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-09 07:20:10,781 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-09 07:20:10,781 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-09 07:20:10,782 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-09 07:20:10,782 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-09 07:20:10,782 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-09 07:20:10,782 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-09 07:20:10,783 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-09 07:20:10,783 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-09 07:20:10,783 INFO  L153        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2024-11-09 07:20:10,784 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-09 07:20:10,784 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-09 07:20:10,785 INFO  L153        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2024-11-09 07:20:10,785 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-09 07:20:10,785 INFO  L153        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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
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 -> 74892b4fb04a6fe0e809c110df08d9da57c5c90ea65da5b04a32432686fc90f8
[2024-11-09 07:20:11,081 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-09 07:20:11,101 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-09 07:20:11,104 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-09 07:20:11,105 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-09 07:20:11,105 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-09 07:20:11,106 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c
Unable to find full path for "g++"
[2024-11-09 07:20:13,127 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-09 07:20:13,361 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-09 07:20:13,362 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c
[2024-11-09 07:20:13,370 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/data/da2a4e43b/b4dd5b69456a4d6fb4c566e9ec1145b7/FLAGdb054785e
[2024-11-09 07:20:13,381 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/data/da2a4e43b/b4dd5b69456a4d6fb4c566e9ec1145b7
[2024-11-09 07:20:13,384 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-09 07:20:13,385 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-09 07:20:13,386 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-09 07:20:13,386 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-09 07:20:13,393 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-09 07:20:13,396 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,397 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ade9915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13, skipping insertion in model container
[2024-11-09 07:20:13,398 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,428 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-09 07:20:13,708 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-09 07:20:13,722 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-09 07:20:13,751 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-09 07:20:13,773 INFO  L204         MainTranslator]: Completed translation
[2024-11-09 07:20:13,774 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13 WrapperNode
[2024-11-09 07:20:13,774 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-09 07:20:13,775 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-09 07:20:13,775 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-09 07:20:13,775 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-09 07:20:13,783 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,792 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,826 INFO  L138                Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 111
[2024-11-09 07:20:13,826 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-09 07:20:13,827 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-09 07:20:13,827 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-09 07:20:13,827 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-09 07:20:13,839 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,839 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,842 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,842 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,850 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,858 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,862 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,863 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,870 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-09 07:20:13,871 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-09 07:20:13,871 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-09 07:20:13,871 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-09 07:20:13,872 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13" (1/1) ...
[2024-11-09 07:20:13,884 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-09 07:20:13,895 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/z3
[2024-11-09 07:20:13,913 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2024-11-09 07:20:13,919 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb23f80-7594-4485-ad72-da68cae56ade/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2024-11-09 07:20:13,945 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-09 07:20:13,945 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2024-11-09 07:20:13,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2024-11-09 07:20:13,945 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2024-11-09 07:20:13,945 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2024-11-09 07:20:13,945 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2024-11-09 07:20:13,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2024-11-09 07:20:13,946 INFO  L130     BoogieDeclarations]: Found specification of procedure thread4
[2024-11-09 07:20:13,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread4
[2024-11-09 07:20:13,946 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-11-09 07:20:13,946 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-09 07:20:13,946 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-09 07:20:13,948 WARN  L207             CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-09 07:20:14,053 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-09 07:20:14,055 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-09 07:20:14,308 INFO  L283             CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-09 07:20:14,309 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-09 07:20:14,335 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-09 07:20:14,336 INFO  L316             CfgBuilder]: Removed 4 assume(true) statements.
[2024-11-09 07:20:14,336 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:20:14 BoogieIcfgContainer
[2024-11-09 07:20:14,336 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-09 07:20:14,339 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-09 07:20:14,339 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-09 07:20:14,344 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-09 07:20:14,344 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:20:13" (1/3) ...
[2024-11-09 07:20:14,345 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191f83ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:20:14, skipping insertion in model container
[2024-11-09 07:20:14,345 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:20:13" (2/3) ...
[2024-11-09 07:20:14,346 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191f83ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:20:14, skipping insertion in model container
[2024-11-09 07:20:14,346 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:20:14" (3/3) ...
[2024-11-09 07:20:14,347 INFO  L112   eAbstractionObserver]: Analyzing ICFG popl20-difference-det.wvr.c
[2024-11-09 07:20:14,365 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-09 07:20:14,365 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations.
[2024-11-09 07:20:14,365 INFO  L489   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-09 07:20:14,494 INFO  L143    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2024-11-09 07:20:14,535 INFO  L113   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 164 places, 162 transitions, 352 flow
[2024-11-09 07:20:31,620 INFO  L135   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 365268 states, 365251 states have (on average 4.891723773514651) internal successors, (1786707), 365267 states have internal predecessors, (1786707), 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)
[2024-11-09 07:20:31,713 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-09 07:20:31,734 INFO  L333      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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4ad77ee8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-09 07:20:31,736 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 14 error locations.
[2024-11-09 07:20:32,438 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 365268 states, 365251 states have (on average 4.891723773514651) internal successors, (1786707), 365267 states have internal predecessors, (1786707), 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)
[2024-11-09 07:20:32,444 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-11-09 07:20:32,444 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-09 07:20:32,445 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-09 07:20:32,446 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread3Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 10 more)] ===
[2024-11-09 07:20:32,452 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-09 07:20:32,453 INFO  L85        PathProgramCache]: Analyzing trace with hash -625112542, now seen corresponding path program 1 times
[2024-11-09 07:20:32,465 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-09 07:20:32,466 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211974192]
[2024-11-09 07:20:32,466 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-09 07:20:32,467 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-09 07:20:32,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-09 07:20:32,782 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-09 07:20:32,782 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-09 07:20:32,783 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211974192]
[2024-11-09 07:20:32,784 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211974192] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-09 07:20:32,785 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-09 07:20:32,785 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-09 07:20:32,787 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397088144]
[2024-11-09 07:20:32,789 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-09 07:20:32,796 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-09 07:20:32,797 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-09 07:20:32,829 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-09 07:20:32,829 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-09 07:20:34,792 INFO  L87              Difference]: Start difference. First operand  has 365268 states, 365251 states have (on average 4.891723773514651) internal successors, (1786707), 365267 states have internal predecessors, (1786707), 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 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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)
[2024-11-09 07:20:51,636 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-09 07:20:51,636 INFO  L93              Difference]: Finished difference Result 727396 states and 3559172 transitions.
[2024-11-09 07:20:51,638 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-09 07:20:51,639 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 22
[2024-11-09 07:20:51,640 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-09 07:20:58,619 INFO  L225             Difference]: With dead ends: 727396
[2024-11-09 07:20:58,620 INFO  L226             Difference]: Without dead ends: 364794
[2024-11-09 07:21:00,957 INFO  L431           NwaCegarLoop]: 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
[2024-11-09 07:21:00,969 INFO  L432           NwaCegarLoop]: 122 mSDtfsCounter, 2 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-09 07:21:00,970 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 233 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-09 07:21:01,968 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 364794 states.