./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i --full-output --architecture 32bit


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


Checking for memory safety (deref-memtrack)
Using default analysis
Version 4e7fbc69
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )

 --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-4e7fbc6
[2022-11-23 15:25:54,696 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-23 15:25:54,699 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-23 15:25:54,748 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-23 15:25:54,748 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-23 15:25:54,749 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-23 15:25:54,751 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-23 15:25:54,753 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-23 15:25:54,755 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-23 15:25:54,765 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-23 15:25:54,767 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-23 15:25:54,772 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-23 15:25:54,772 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-23 15:25:54,774 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-23 15:25:54,775 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-23 15:25:54,776 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-23 15:25:54,777 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-23 15:25:54,778 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-23 15:25:54,780 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-23 15:25:54,782 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-23 15:25:54,786 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-23 15:25:54,790 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-23 15:25:54,792 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-23 15:25:54,793 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-23 15:25:54,809 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-23 15:25:54,810 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-23 15:25:54,810 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-23 15:25:54,812 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-23 15:25:54,813 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-23 15:25:54,814 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-23 15:25:54,814 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-23 15:25:54,815 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-23 15:25:54,817 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-23 15:25:54,818 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-23 15:25:54,819 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-23 15:25:54,820 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-23 15:25:54,820 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-23 15:25:54,821 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-23 15:25:54,821 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-23 15:25:54,823 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-23 15:25:54,823 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-23 15:25:54,824 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf
[2022-11-23 15:25:54,871 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-23 15:25:54,871 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-23 15:25:54,872 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-23 15:25:54,872 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-23 15:25:54,873 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-23 15:25:54,873 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-23 15:25:54,874 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-11-23 15:25:54,874 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-11-23 15:25:54,874 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-11-23 15:25:54,874 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-11-23 15:25:54,875 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-11-23 15:25:54,875 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-11-23 15:25:54,876 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-11-23 15:25:54,876 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-11-23 15:25:54,876 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-11-23 15:25:54,876 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-11-23 15:25:54,877 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-11-23 15:25:54,877 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-11-23 15:25:54,877 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-23 15:25:54,878 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-11-23 15:25:54,878 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-23 15:25:54,878 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-11-23 15:25:54,878 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-11-23 15:25:54,878 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-11-23 15:25:54,879 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-11-23 15:25:54,879 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-23 15:25:54,880 INFO  L138        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2022-11-23 15:25:54,880 INFO  L138        SettingsManager]:  * Bitprecise bitfields=true
[2022-11-23 15:25:54,880 INFO  L138        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2022-11-23 15:25:54,880 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-23 15:25:54,881 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-11-23 15:25:54,881 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-11-23 15:25:54,881 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-23 15:25:54,881 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-23 15:25:54,882 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-23 15:25:54,882 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 15:25:54,882 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-23 15:25:54,882 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2022-11-23 15:25:54,882 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-23 15:25:54,883 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-11-23 15:25:54,883 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-23 15:25:54,883 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-11-23 15:25:54,883 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
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_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/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_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW
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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )


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 -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f
[2022-11-23 15:25:55,241 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-23 15:25:55,279 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-23 15:25:55,282 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-23 15:25:55,284 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-23 15:25:55,284 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-23 15:25:55,285 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i
[2022-11-23 15:25:58,464 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-11-23 15:25:58,830 INFO  L351              CDTParser]: Found 1 translation units.
[2022-11-23 15:25:58,831 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i
[2022-11-23 15:25:58,860 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/data/823b68cea/bfb7ca9ddc544561aebb492e54c12b18/FLAG11e63a640
[2022-11-23 15:25:58,883 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/data/823b68cea/bfb7ca9ddc544561aebb492e54c12b18
[2022-11-23 15:25:58,889 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-23 15:25:58,891 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-23 15:25:58,894 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-23 15:25:58,894 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-23 15:25:58,902 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-23 15:25:58,903 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:25:58" (1/1) ...
[2022-11-23 15:25:58,904 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ef1b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:25:58, skipping insertion in model container
[2022-11-23 15:25:58,904 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:25:58" (1/1) ...
[2022-11-23 15:25:58,913 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-23 15:25:58,988 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-23 15:26:00,161 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482]
[2022-11-23 15:26:00,227 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055]
[2022-11-23 15:26:00,236 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464]
[2022-11-23 15:26:00,268 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-23 15:26:00,287 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-23 15:26:00,357 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[76469,76482]
[2022-11-23 15:26:00,395 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79042,79055]
[2022-11-23 15:26:00,399 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i[79451,79464]
[2022-11-23 15:26:00,420 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-23 15:26:00,613 INFO  L208         MainTranslator]: Completed translation
[2022-11-23 15:26:00,614 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00 WrapperNode
[2022-11-23 15:26:00,614 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-23 15:26:00,615 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-23 15:26:00,616 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-23 15:26:00,616 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-23 15:26:00,626 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00" (1/1) ...
[2022-11-23 15:26:00,689 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00" (1/1) ...
[2022-11-23 15:26:00,769 INFO  L138                Inliner]: procedures = 489, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 1719
[2022-11-23 15:26:00,770 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-23 15:26:00,770 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-23 15:26:00,771 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-23 15:26:00,771 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-23 15:26:00,781 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00" (1/1) ...
[2022-11-23 15:26:00,781 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00" (1/1) ...
[2022-11-23 15:26:00,797 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00" (1/1) ...
[2022-11-23 15:26:00,797 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00" (1/1) ...
[2022-11-23 15:26:00,842 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00" (1/1) ...
[2022-11-23 15:26:00,851 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00" (1/1) ...
[2022-11-23 15:26:00,865 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00" (1/1) ...
[2022-11-23 15:26:00,884 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00" (1/1) ...
[2022-11-23 15:26:00,895 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-23 15:26:00,897 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-23 15:26:00,898 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-23 15:26:00,898 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-23 15:26:00,899 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00" (1/1) ...
[2022-11-23 15:26:00,906 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 15:26:00,916 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 15:26:00,927 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-23 15:26:00,938 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d699ae8a-af57-4730-9d9e-a54ec471dcbb/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-23 15:26:00,972 INFO  L130     BoogieDeclarations]: Found specification of procedure Stealer
[2022-11-23 15:26:00,973 INFO  L138     BoogieDeclarations]: Found implementation of procedure Stealer
[2022-11-23 15:26:00,973 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-11-23 15:26:00,973 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-23 15:26:00,973 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-11-23 15:26:00,973 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-11-23 15:26:00,973 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2022-11-23 15:26:00,974 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-23 15:26:00,974 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2022-11-23 15:26:00,974 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-23 15:26:00,974 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-23 15:26:00,974 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-23 15:26:00,974 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2022-11-23 15:26:00,974 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-11-23 15:26:00,975 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-23 15:26:00,977 WARN  L209             CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-11-23 15:26:01,346 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-23 15:26:01,348 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-23 15:26:04,389 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-23 15:26:05,183 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-23 15:26:05,184 INFO  L300             CfgBuilder]: Removed 11 assume(true) statements.
[2022-11-23 15:26:05,188 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:05 BoogieIcfgContainer
[2022-11-23 15:26:05,188 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-23 15:26:05,190 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-23 15:26:05,191 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-23 15:26:05,194 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-23 15:26:05,194 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:25:58" (1/3) ...
[2022-11-23 15:26:05,195 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea6d67a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:26:05, skipping insertion in model container
[2022-11-23 15:26:05,195 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:00" (2/3) ...
[2022-11-23 15:26:05,196 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea6d67a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:26:05, skipping insertion in model container
[2022-11-23 15:26:05,196 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:05" (3/3) ...
[2022-11-23 15:26:05,197 INFO  L112   eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i
[2022-11-23 15:26:05,217 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-23 15:26:05,217 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 520 error locations.
[2022-11-23 15:26:05,217 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-11-23 15:26:05,485 INFO  L144    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2022-11-23 15:26:05,546 INFO  L115   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-11-23 15:26:05,562 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2143 places, 2188 transitions, 4384 flow
[2022-11-23 15:26:05,565 INFO  L113        LiptonReduction]: Starting Lipton reduction on Petri net that has 2143 places, 2188 transitions, 4384 flow
[2022-11-23 15:26:05,567 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 2143 places, 2188 transitions, 4384 flow
[2022-11-23 15:26:07,647 INFO  L130       PetriNetUnfolder]: 89/4072 cut-off events.
[2022-11-23 15:26:07,648 INFO  L131       PetriNetUnfolder]: For 1/1 co-relation queries the response was YES.
[2022-11-23 15:26:07,717 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 4078 conditions, 4072 events. 89/4072 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 22105 event pairs, 0 based on Foata normal form. 0/3000 useless extension candidates. Maximal degree in co-relation 2081. Up to 6 conditions per place. 
[2022-11-23 15:26:08,110 INFO  L119        LiptonReduction]: Number of co-enabled transitions 725760
[2022-11-23 15:35:11,845 WARN  L233               SmtUtils]: Spent 12.87s on a formula simplification. DAG size of input: 225 DAG size of output: 216 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-11-23 15:35:20,595 WARN  L233               SmtUtils]: Spent 8.75s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-11-23 15:35:33,143 WARN  L233               SmtUtils]: Spent 12.55s on a formula simplification. DAG size of input: 224 DAG size of output: 215 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-11-23 15:35:40,063 WARN  L233               SmtUtils]: Spent 6.92s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-11-23 15:36:07,939 WARN  L233               SmtUtils]: Spent 14.96s on a formula simplification. DAG size of input: 219 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-11-23 15:36:14,855 WARN  L233               SmtUtils]: Spent 6.91s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-11-23 15:36:29,434 WARN  L233               SmtUtils]: Spent 14.58s on a formula simplification. DAG size of input: 218 DAG size of output: 213 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)
[2022-11-23 15:36:36,838 WARN  L233               SmtUtils]: Spent 7.40s on a formula simplification that was a NOOP. DAG size: 211 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)