./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix003_power.opt_pso.opt_rmo.opt_tso.opt.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 5e519f3a
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_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix003_power.opt_pso.opt_rmo.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 80bd490b89eb696c85e417e2f0348670cfb7c8195637276a01d1016d9277f95a
--- 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-5e519f3
[2022-11-02 21:09:54,622 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-02 21:09:54,624 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 21:09:54,660 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 21:09:54,661 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 21:09:54,662 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 21:09:54,664 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 21:09:54,666 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 21:09:54,668 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 21:09:54,670 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 21:09:54,671 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 21:09:54,672 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 21:09:54,673 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 21:09:54,674 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 21:09:54,676 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 21:09:54,678 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 21:09:54,683 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 21:09:54,687 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 21:09:54,689 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 21:09:54,693 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 21:09:54,697 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 21:09:54,699 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 21:09:54,700 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 21:09:54,701 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 21:09:54,705 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 21:09:54,705 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 21:09:54,705 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 21:09:54,706 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 21:09:54,707 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 21:09:54,708 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 21:09:54,708 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 21:09:54,709 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 21:09:54,721 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 21:09:54,722 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 21:09:54,723 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 21:09:54,723 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 21:09:54,724 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 21:09:54,724 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 21:09:54,725 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 21:09:54,725 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 21:09:54,726 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 21:09:54,729 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 21:09:54,769 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-02 21:09:54,770 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 21:09:54,771 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 21:09:54,771 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 21:09:54,772 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 21:09:54,773 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 21:09:54,773 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 21:09:54,774 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-11-02 21:09:54,774 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-11-02 21:09:54,774 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 21:09:54,775 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-11-02 21:09:54,776 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-11-02 21:09:54,776 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-11-02 21:09:54,776 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-02 21:09:54,776 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 21:09:54,777 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 21:09:54,777 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 21:09:54,777 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-11-02 21:09:54,777 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-11-02 21:09:54,777 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-02 21:09:54,778 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-11-02 21:09:54,778 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 21:09:54,778 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-11-02 21:09:54,778 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-02 21:09:54,778 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:09:54,779 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 21:09:54,779 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 21:09:54,779 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 21:09:54,779 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-11-02 21:09:54,780 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 21:09:54,780 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 21:09:54,780 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 21:09:54,780 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 21:09:54,781 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_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/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_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc
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 ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
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 -> 80bd490b89eb696c85e417e2f0348670cfb7c8195637276a01d1016d9277f95a
[2022-11-02 21:09:55,033 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 21:09:55,061 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 21:09:55,063 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 21:09:55,065 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-02 21:09:55,066 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-02 21:09:55,067 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-wmm/mix003_power.opt_pso.opt_rmo.opt_tso.opt.i
[2022-11-02 21:09:55,171 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/data/4442e311e/741864bcb2bd42169a5ec98221a93b12/FLAG197f1092c
[2022-11-02 21:09:55,790 INFO  L306              CDTParser]: Found 1 translation units.
[2022-11-02 21:09:55,791 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/sv-benchmarks/c/pthread-wmm/mix003_power.opt_pso.opt_rmo.opt_tso.opt.i
[2022-11-02 21:09:55,806 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/data/4442e311e/741864bcb2bd42169a5ec98221a93b12/FLAG197f1092c
[2022-11-02 21:09:56,045 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/data/4442e311e/741864bcb2bd42169a5ec98221a93b12
[2022-11-02 21:09:56,049 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 21:09:56,052 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 21:09:56,057 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 21:09:56,058 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 21:09:56,062 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 21:09:56,063 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:56,065 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d90de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56, skipping insertion in model container
[2022-11-02 21:09:56,065 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:56,074 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-02 21:09:56,158 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-02 21:09:56,416 WARN  L230   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_ef67aab9-96ed-4a55-aa03-a12290dc7b64/sv-benchmarks/c/pthread-wmm/mix003_power.opt_pso.opt_rmo.opt_tso.opt.i[974,987]
[2022-11-02 21:09:56,754 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:09:56,770 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-02 21:09:56,794 WARN  L230   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_ef67aab9-96ed-4a55-aa03-a12290dc7b64/sv-benchmarks/c/pthread-wmm/mix003_power.opt_pso.opt_rmo.opt_tso.opt.i[974,987]
[2022-11-02 21:09:56,885 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:09:56,924 INFO  L208         MainTranslator]: Completed translation
[2022-11-02 21:09:56,924 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56 WrapperNode
[2022-11-02 21:09:56,925 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 21:09:56,926 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 21:09:56,926 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 21:09:56,926 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 21:09:56,936 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:56,974 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:57,009 INFO  L138                Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 281
[2022-11-02 21:09:57,010 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 21:09:57,011 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 21:09:57,011 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 21:09:57,011 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 21:09:57,021 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:57,021 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:57,025 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:57,025 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:57,035 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:57,039 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:57,043 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:57,045 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:57,050 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 21:09:57,063 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 21:09:57,063 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 21:09:57,063 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-02 21:09:57,065 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56" (1/1) ...
[2022-11-02 21:09:57,081 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:09:57,092 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:09:57,104 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 21:09:57,119 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 21:09:57,154 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-11-02 21:09:57,154 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-11-02 21:09:57,154 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 21:09:57,155 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-02 21:09:57,155 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-02 21:09:57,156 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2022-11-02 21:09:57,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2022-11-02 21:09:57,156 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2022-11-02 21:09:57,157 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2022-11-02 21:09:57,158 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2022-11-02 21:09:57,158 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2022-11-02 21:09:57,158 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 21:09:57,158 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-11-02 21:09:57,159 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 21:09:57,159 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 21:09:57,161 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-11-02 21:09:57,389 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-02 21:09:57,391 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 21:09:58,154 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-02 21:09:58,817 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 21:09:58,817 INFO  L300             CfgBuilder]: Removed 0 assume(true) statements.
[2022-11-02 21:09:58,820 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:58 BoogieIcfgContainer
[2022-11-02 21:09:58,821 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 21:09:58,823 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 21:09:58,824 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 21:09:58,828 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-02 21:09:58,829 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:09:56" (1/3) ...
[2022-11-02 21:09:58,830 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161149b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:09:58, skipping insertion in model container
[2022-11-02 21:09:58,830 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:56" (2/3) ...
[2022-11-02 21:09:58,831 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161149b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:09:58, skipping insertion in model container
[2022-11-02 21:09:58,831 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:58" (3/3) ...
[2022-11-02 21:09:58,832 INFO  L112   eAbstractionObserver]: Analyzing ICFG mix003_power.opt_pso.opt_rmo.opt_tso.opt.i
[2022-11-02 21:09:58,845 WARN  L145   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-11-02 21:09:58,858 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 21:09:58,858 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2022-11-02 21:09:58,858 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-11-02 21:09:58,953 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-11-02 21:09:58,996 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 126 places, 118 transitions, 251 flow
[2022-11-02 21:09:59,067 INFO  L130       PetriNetUnfolder]: 2/115 cut-off events.
[2022-11-02 21:09:59,068 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-11-02 21:09:59,073 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 125 conditions, 115 events. 2/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. 
[2022-11-02 21:09:59,074 INFO  L82        GeneralOperation]: Start removeDead. Operand has 126 places, 118 transitions, 251 flow
[2022-11-02 21:09:59,080 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 123 places, 115 transitions, 239 flow
[2022-11-02 21:09:59,107 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 21:09:59,118 INFO  L357      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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c786328, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 21:09:59,119 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2022-11-02 21:09:59,163 INFO  L130       PetriNetUnfolder]: 0/76 cut-off events.
[2022-11-02 21:09:59,164 INFO  L131       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-11-02 21:09:59,165 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2022-11-02 21:09:59,166 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:09:59,168 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2022-11-02 21:09:59,175 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:09:59,176 INFO  L85        PathProgramCache]: Analyzing trace with hash -1251871241, now seen corresponding path program 1 times
[2022-11-02 21:09:59,188 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:09:59,189 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435967637]
[2022-11-02 21:09:59,190 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:09:59,191 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:09:59,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:00,034 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:00,035 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:00,035 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435967637]
[2022-11-02 21:10:00,036 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435967637] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:00,036 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:00,037 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 21:10:00,038 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781854625]
[2022-11-02 21:10:00,039 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:00,049 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 21:10:00,049 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:00,092 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 21:10:00,096 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:10:00,106 INFO  L477   CegarLoopForPetriNet]: Number of universal loopers: 105 out of 118
[2022-11-02 21:10:00,116 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 115 transitions, 239 flow. Second operand  has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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)
[2022-11-02 21:10:00,116 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 21:10:00,116 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 118
[2022-11-02 21:10:00,117 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 21:10:00,296 INFO  L130       PetriNetUnfolder]: 14/154 cut-off events.
[2022-11-02 21:10:00,296 INFO  L131       PetriNetUnfolder]: For 4/4 co-relation queries the response was YES.
[2022-11-02 21:10:00,299 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 201 conditions, 154 events. 14/154 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 281 event pairs, 2 based on Foata normal form. 7/152 useless extension candidates. Maximal degree in co-relation 146. Up to 25 conditions per place. 
[2022-11-02 21:10:00,302 INFO  L137   encePairwiseOnDemand]: 113/118 looper letters, 9 selfloop transitions, 2 changer transitions 0/113 dead transitions.
[2022-11-02 21:10:00,302 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 113 transitions, 257 flow
[2022-11-02 21:10:00,304 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 21:10:00,306 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2022-11-02 21:10:00,318 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 331 transitions.
[2022-11-02 21:10:00,324 INFO  L522   CegarLoopForPetriNet]: DFA transition density 0.9350282485875706
[2022-11-02 21:10:00,325 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 331 transitions.
[2022-11-02 21:10:00,325 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 331 transitions.
[2022-11-02 21:10:00,332 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 21:10:00,335 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 331 transitions.
[2022-11-02 21:10:00,342 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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)
[2022-11-02 21:10:00,352 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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)
[2022-11-02 21:10:00,353 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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)
[2022-11-02 21:10:00,355 INFO  L175             Difference]: Start difference. First operand has 123 places, 115 transitions, 239 flow. Second operand 3 states and 331 transitions.
[2022-11-02 21:10:00,356 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 113 transitions, 257 flow
[2022-11-02 21:10:00,364 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 113 transitions, 254 flow, removed 0 selfloop flow, removed 3 redundant places.
[2022-11-02 21:10:00,367 INFO  L231             Difference]: Finished difference. Result has 120 places, 111 transitions, 232 flow
[2022-11-02 21:10:00,370 INFO  L270   CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=120, PETRI_TRANSITIONS=111}
[2022-11-02 21:10:00,375 INFO  L287   CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places.
[2022-11-02 21:10:00,376 INFO  L495      AbstractCegarLoop]: Abstraction has has 120 places, 111 transitions, 232 flow
[2022-11-02 21:10:00,376 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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)
[2022-11-02 21:10:00,377 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2022-11-02 21:10:00,378 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:00,379 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 21:10:00,379 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2022-11-02 21:10:00,380 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:00,380 INFO  L85        PathProgramCache]: Analyzing trace with hash -1337773493, now seen corresponding path program 1 times
[2022-11-02 21:10:00,381 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:00,381 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449089520]
[2022-11-02 21:10:00,381 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:00,382 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:00,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:00,952 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:00,952 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:00,953 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449089520]
[2022-11-02 21:10:00,953 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449089520] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:00,954 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:00,954 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-11-02 21:10:00,954 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673457902]
[2022-11-02 21:10:00,955 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:00,959 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 21:10:00,959 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:00,960 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 21:10:00,961 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-11-02 21:10:00,972 INFO  L477   CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118
[2022-11-02 21:10:00,974 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 111 transitions, 232 flow. Second operand  has 7 states, 7 states have (on average 93.14285714285714) internal successors, (652), 7 states have internal predecessors, (652), 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)
[2022-11-02 21:10:00,974 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 21:10:00,974 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118
[2022-11-02 21:10:00,974 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 21:10:01,901 INFO  L130       PetriNetUnfolder]: 588/1721 cut-off events.
[2022-11-02 21:10:01,902 INFO  L131       PetriNetUnfolder]: For 66/66 co-relation queries the response was YES.
[2022-11-02 21:10:01,908 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2741 conditions, 1721 events. 588/1721 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 12390 event pairs, 79 based on Foata normal form. 0/1673 useless extension candidates. Maximal degree in co-relation 2682. Up to 460 conditions per place. 
[2022-11-02 21:10:01,913 INFO  L137   encePairwiseOnDemand]: 112/118 looper letters, 27 selfloop transitions, 2 changer transitions 57/163 dead transitions.
[2022-11-02 21:10:01,913 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 163 transitions, 502 flow
[2022-11-02 21:10:01,914 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-11-02 21:10:01,914 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2022-11-02 21:10:01,916 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 896 transitions.
[2022-11-02 21:10:01,917 INFO  L522   CegarLoopForPetriNet]: DFA transition density 0.8436911487758946
[2022-11-02 21:10:01,917 INFO  L72            ComplementDD]: Start complementDD. Operand 9 states and 896 transitions.
[2022-11-02 21:10:01,917 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 9 states and 896 transitions.
[2022-11-02 21:10:01,918 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 21:10:01,918 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 896 transitions.
[2022-11-02 21:10:01,920 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 10 states, 9 states have (on average 99.55555555555556) internal successors, (896), 9 states have internal predecessors, (896), 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)
[2022-11-02 21:10:01,924 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 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)
[2022-11-02 21:10:01,925 INFO  L81            ComplementDD]: Finished complementDD. Result  has 10 states, 10 states have (on average 118.0) internal successors, (1180), 10 states have internal predecessors, (1180), 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)
[2022-11-02 21:10:01,925 INFO  L175             Difference]: Start difference. First operand has 120 places, 111 transitions, 232 flow. Second operand 9 states and 896 transitions.
[2022-11-02 21:10:01,925 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 163 transitions, 502 flow
[2022-11-02 21:10:01,927 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 163 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places.
[2022-11-02 21:10:01,929 INFO  L231             Difference]: Finished difference. Result has 133 places, 99 transitions, 224 flow
[2022-11-02 21:10:01,930 INFO  L270   CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=224, PETRI_PLACES=133, PETRI_TRANSITIONS=99}
[2022-11-02 21:10:01,931 INFO  L287   CegarLoopForPetriNet]: 123 programPoint places, 10 predicate places.
[2022-11-02 21:10:01,931 INFO  L495      AbstractCegarLoop]: Abstraction has has 133 places, 99 transitions, 224 flow
[2022-11-02 21:10:01,931 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 93.14285714285714) internal successors, (652), 7 states have internal predecessors, (652), 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)
[2022-11-02 21:10:01,932 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2022-11-02 21:10:01,932 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:01,932 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-02 21:10:01,932 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2022-11-02 21:10:01,933 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:01,933 INFO  L85        PathProgramCache]: Analyzing trace with hash -1014274665, now seen corresponding path program 1 times
[2022-11-02 21:10:01,933 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:01,933 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828243350]
[2022-11-02 21:10:01,934 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:01,934 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:01,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:02,216 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:02,216 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:02,217 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828243350]
[2022-11-02 21:10:02,217 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828243350] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:02,217 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:02,217 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-11-02 21:10:02,218 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265991968]
[2022-11-02 21:10:02,218 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:02,219 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 21:10:02,219 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:02,221 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 21:10:02,221 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-11-02 21:10:02,223 INFO  L477   CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118
[2022-11-02 21:10:02,227 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 99 transitions, 224 flow. Second operand  has 7 states, 7 states have (on average 93.28571428571429) internal successors, (653), 7 states have internal predecessors, (653), 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)
[2022-11-02 21:10:02,228 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 21:10:02,228 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118
[2022-11-02 21:10:02,228 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 21:10:02,727 INFO  L130       PetriNetUnfolder]: 329/767 cut-off events.
[2022-11-02 21:10:02,727 INFO  L131       PetriNetUnfolder]: For 249/249 co-relation queries the response was YES.
[2022-11-02 21:10:02,730 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1555 conditions, 767 events. 329/767 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3955 event pairs, 77 based on Foata normal form. 20/758 useless extension candidates. Maximal degree in co-relation 1489. Up to 259 conditions per place. 
[2022-11-02 21:10:02,733 INFO  L137   encePairwiseOnDemand]: 110/118 looper letters, 22 selfloop transitions, 4 changer transitions 31/134 dead transitions.
[2022-11-02 21:10:02,733 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 134 transitions, 429 flow
[2022-11-02 21:10:02,735 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-11-02 21:10:02,736 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2022-11-02 21:10:02,737 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 969 transitions.
[2022-11-02 21:10:02,738 INFO  L522   CegarLoopForPetriNet]: DFA transition density 0.8211864406779661
[2022-11-02 21:10:02,738 INFO  L72            ComplementDD]: Start complementDD. Operand 10 states and 969 transitions.
[2022-11-02 21:10:02,740 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 10 states and 969 transitions.
[2022-11-02 21:10:02,741 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 21:10:02,741 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 969 transitions.
[2022-11-02 21:10:02,743 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 11 states, 10 states have (on average 96.9) internal successors, (969), 10 states have internal predecessors, (969), 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)
[2022-11-02 21:10:02,746 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 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)
[2022-11-02 21:10:02,747 INFO  L81            ComplementDD]: Finished complementDD. Result  has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 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)
[2022-11-02 21:10:02,747 INFO  L175             Difference]: Start difference. First operand has 133 places, 99 transitions, 224 flow. Second operand 10 states and 969 transitions.
[2022-11-02 21:10:02,747 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 134 transitions, 429 flow
[2022-11-02 21:10:02,754 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 134 transitions, 395 flow, removed 14 selfloop flow, removed 8 redundant places.
[2022-11-02 21:10:02,757 INFO  L231             Difference]: Finished difference. Result has 123 places, 99 transitions, 232 flow
[2022-11-02 21:10:02,758 INFO  L270   CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=232, PETRI_PLACES=123, PETRI_TRANSITIONS=99}
[2022-11-02 21:10:02,760 INFO  L287   CegarLoopForPetriNet]: 123 programPoint places, 0 predicate places.
[2022-11-02 21:10:02,760 INFO  L495      AbstractCegarLoop]: Abstraction has has 123 places, 99 transitions, 232 flow
[2022-11-02 21:10:02,762 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 93.28571428571429) internal successors, (653), 7 states have internal predecessors, (653), 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)
[2022-11-02 21:10:02,762 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2022-11-02 21:10:02,762 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:02,762 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-02 21:10:02,763 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2022-11-02 21:10:02,763 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:02,764 INFO  L85        PathProgramCache]: Analyzing trace with hash -2116396410, now seen corresponding path program 1 times
[2022-11-02 21:10:02,764 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:02,764 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383784771]
[2022-11-02 21:10:02,764 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:02,764 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:02,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:03,213 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:03,213 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:03,213 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383784771]
[2022-11-02 21:10:03,214 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383784771] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:03,214 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:03,214 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-02 21:10:03,214 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732327034]
[2022-11-02 21:10:03,214 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:03,215 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-11-02 21:10:03,215 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:03,216 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-11-02 21:10:03,216 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-11-02 21:10:03,217 INFO  L477   CegarLoopForPetriNet]: Number of universal loopers: 95 out of 118
[2022-11-02 21:10:03,218 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 99 transitions, 232 flow. Second operand  has 6 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 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)
[2022-11-02 21:10:03,218 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 21:10:03,219 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 118
[2022-11-02 21:10:03,219 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 21:10:03,908 INFO  L130       PetriNetUnfolder]: 556/1225 cut-off events.
[2022-11-02 21:10:03,908 INFO  L131       PetriNetUnfolder]: For 118/118 co-relation queries the response was YES.
[2022-11-02 21:10:03,913 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 2398 conditions, 1225 events. 556/1225 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 7783 event pairs, 16 based on Foata normal form. 0/1201 useless extension candidates. Maximal degree in co-relation 2333. Up to 343 conditions per place. 
[2022-11-02 21:10:03,917 INFO  L137   encePairwiseOnDemand]: 108/118 looper letters, 28 selfloop transitions, 6 changer transitions 45/159 dead transitions.
[2022-11-02 21:10:03,918 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 159 transitions, 535 flow
[2022-11-02 21:10:03,918 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-11-02 21:10:03,919 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2022-11-02 21:10:03,921 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1031 transitions.
[2022-11-02 21:10:03,921 INFO  L522   CegarLoopForPetriNet]: DFA transition density 0.8737288135593221
[2022-11-02 21:10:03,922 INFO  L72            ComplementDD]: Start complementDD. Operand 10 states and 1031 transitions.
[2022-11-02 21:10:03,922 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 10 states and 1031 transitions.
[2022-11-02 21:10:03,923 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 21:10:03,923 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1031 transitions.
[2022-11-02 21:10:03,928 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 11 states, 10 states have (on average 103.1) internal successors, (1031), 10 states have internal predecessors, (1031), 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)
[2022-11-02 21:10:03,931 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 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)
[2022-11-02 21:10:03,932 INFO  L81            ComplementDD]: Finished complementDD. Result  has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 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)
[2022-11-02 21:10:03,932 INFO  L175             Difference]: Start difference. First operand has 123 places, 99 transitions, 232 flow. Second operand 10 states and 1031 transitions.
[2022-11-02 21:10:03,932 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 159 transitions, 535 flow
[2022-11-02 21:10:03,938 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 159 transitions, 501 flow, removed 6 selfloop flow, removed 9 redundant places.
[2022-11-02 21:10:03,942 INFO  L231             Difference]: Finished difference. Result has 123 places, 101 transitions, 266 flow
[2022-11-02 21:10:03,943 INFO  L270   CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=266, PETRI_PLACES=123, PETRI_TRANSITIONS=101}
[2022-11-02 21:10:03,944 INFO  L287   CegarLoopForPetriNet]: 123 programPoint places, 0 predicate places.
[2022-11-02 21:10:03,949 INFO  L495      AbstractCegarLoop]: Abstraction has has 123 places, 101 transitions, 266 flow
[2022-11-02 21:10:03,950 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 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)
[2022-11-02 21:10:03,950 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2022-11-02 21:10:03,950 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:03,951 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-11-02 21:10:03,951 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2022-11-02 21:10:03,951 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:03,952 INFO  L85        PathProgramCache]: Analyzing trace with hash 1904461213, now seen corresponding path program 1 times
[2022-11-02 21:10:03,952 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:03,954 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863934594]
[2022-11-02 21:10:03,954 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:03,954 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:04,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:04,466 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:04,466 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:04,467 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863934594]
[2022-11-02 21:10:04,467 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863934594] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:04,467 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:04,467 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-11-02 21:10:04,468 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293274218]
[2022-11-02 21:10:04,468 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:04,468 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 21:10:04,469 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:04,469 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 21:10:04,470 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-11-02 21:10:04,471 INFO  L477   CegarLoopForPetriNet]: Number of universal loopers: 95 out of 118
[2022-11-02 21:10:04,472 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 101 transitions, 266 flow. Second operand  has 7 states, 7 states have (on average 97.14285714285714) internal successors, (680), 7 states have internal predecessors, (680), 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)
[2022-11-02 21:10:04,472 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 21:10:04,472 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 118
[2022-11-02 21:10:04,473 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 21:10:04,974 INFO  L130       PetriNetUnfolder]: 212/614 cut-off events.
[2022-11-02 21:10:04,974 INFO  L131       PetriNetUnfolder]: For 597/605 co-relation queries the response was YES.
[2022-11-02 21:10:04,976 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 614 events. 212/614 cut-off events. For 597/605 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3284 event pairs, 4 based on Foata normal form. 22/634 useless extension candidates. Maximal degree in co-relation 1541. Up to 154 conditions per place. 
[2022-11-02 21:10:04,979 INFO  L137   encePairwiseOnDemand]: 109/118 looper letters, 33 selfloop transitions, 9 changer transitions 35/157 dead transitions.
[2022-11-02 21:10:04,979 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 157 transitions, 672 flow
[2022-11-02 21:10:04,980 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2022-11-02 21:10:04,980 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2022-11-02 21:10:04,982 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1029 transitions.
[2022-11-02 21:10:04,983 INFO  L522   CegarLoopForPetriNet]: DFA transition density 0.8720338983050847
[2022-11-02 21:10:04,983 INFO  L72            ComplementDD]: Start complementDD. Operand 10 states and 1029 transitions.
[2022-11-02 21:10:04,983 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 10 states and 1029 transitions.
[2022-11-02 21:10:04,984 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 21:10:04,984 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1029 transitions.
[2022-11-02 21:10:04,986 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 11 states, 10 states have (on average 102.9) internal successors, (1029), 10 states have internal predecessors, (1029), 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)
[2022-11-02 21:10:04,989 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 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)
[2022-11-02 21:10:04,990 INFO  L81            ComplementDD]: Finished complementDD. Result  has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 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)
[2022-11-02 21:10:04,990 INFO  L175             Difference]: Start difference. First operand has 123 places, 101 transitions, 266 flow. Second operand 10 states and 1029 transitions.
[2022-11-02 21:10:04,990 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 157 transitions, 672 flow
[2022-11-02 21:10:04,994 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 157 transitions, 648 flow, removed 7 selfloop flow, removed 5 redundant places.
[2022-11-02 21:10:04,997 INFO  L231             Difference]: Finished difference. Result has 127 places, 104 transitions, 334 flow
[2022-11-02 21:10:04,997 INFO  L270   CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=334, PETRI_PLACES=127, PETRI_TRANSITIONS=104}
[2022-11-02 21:10:05,000 INFO  L287   CegarLoopForPetriNet]: 123 programPoint places, 4 predicate places.
[2022-11-02 21:10:05,000 INFO  L495      AbstractCegarLoop]: Abstraction has has 127 places, 104 transitions, 334 flow
[2022-11-02 21:10:05,001 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 97.14285714285714) internal successors, (680), 7 states have internal predecessors, (680), 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)
[2022-11-02 21:10:05,001 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2022-11-02 21:10:05,001 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:05,001 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-11-02 21:10:05,003 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2022-11-02 21:10:05,004 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:05,004 INFO  L85        PathProgramCache]: Analyzing trace with hash 985825364, now seen corresponding path program 1 times
[2022-11-02 21:10:05,004 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:05,004 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872645189]
[2022-11-02 21:10:05,005 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:05,005 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:05,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:05,587 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:05,588 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:05,588 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872645189]
[2022-11-02 21:10:05,588 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872645189] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:05,589 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:05,589 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2022-11-02 21:10:05,589 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636405824]
[2022-11-02 21:10:05,589 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:05,590 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-11-02 21:10:05,591 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:05,592 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-11-02 21:10:05,594 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-11-02 21:10:05,595 INFO  L477   CegarLoopForPetriNet]: Number of universal loopers: 95 out of 118
[2022-11-02 21:10:05,596 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 104 transitions, 334 flow. Second operand  has 8 states, 8 states have (on average 97.125) internal successors, (777), 8 states have internal predecessors, (777), 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)
[2022-11-02 21:10:05,597 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 21:10:05,597 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 118
[2022-11-02 21:10:05,597 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 21:10:05,961 INFO  L130       PetriNetUnfolder]: 65/287 cut-off events.
[2022-11-02 21:10:05,961 INFO  L131       PetriNetUnfolder]: For 498/498 co-relation queries the response was YES.
[2022-11-02 21:10:05,963 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 775 conditions, 287 events. 65/287 cut-off events. For 498/498 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1061 event pairs, 4 based on Foata normal form. 8/293 useless extension candidates. Maximal degree in co-relation 744. Up to 59 conditions per place. 
[2022-11-02 21:10:05,964 INFO  L137   encePairwiseOnDemand]: 109/118 looper letters, 23 selfloop transitions, 12 changer transitions 21/136 dead transitions.
[2022-11-02 21:10:05,965 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 136 transitions, 620 flow
[2022-11-02 21:10:05,965 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-11-02 21:10:05,966 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2022-11-02 21:10:05,968 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1103 transitions.
[2022-11-02 21:10:05,969 INFO  L522   CegarLoopForPetriNet]: DFA transition density 0.849768875192604
[2022-11-02 21:10:05,969 INFO  L72            ComplementDD]: Start complementDD. Operand 11 states and 1103 transitions.
[2022-11-02 21:10:05,970 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 11 states and 1103 transitions.
[2022-11-02 21:10:05,971 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 21:10:05,971 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1103 transitions.
[2022-11-02 21:10:05,974 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 12 states, 11 states have (on average 100.27272727272727) internal successors, (1103), 11 states have internal predecessors, (1103), 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)
[2022-11-02 21:10:05,977 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 12 states, 12 states have (on average 118.0) internal successors, (1416), 12 states have internal predecessors, (1416), 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)
[2022-11-02 21:10:05,980 INFO  L81            ComplementDD]: Finished complementDD. Result  has 12 states, 12 states have (on average 118.0) internal successors, (1416), 12 states have internal predecessors, (1416), 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)
[2022-11-02 21:10:05,980 INFO  L175             Difference]: Start difference. First operand has 127 places, 104 transitions, 334 flow. Second operand 11 states and 1103 transitions.
[2022-11-02 21:10:05,980 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 136 transitions, 620 flow
[2022-11-02 21:10:05,986 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 136 transitions, 513 flow, removed 40 selfloop flow, removed 11 redundant places.
[2022-11-02 21:10:05,989 INFO  L231             Difference]: Finished difference. Result has 128 places, 104 transitions, 316 flow
[2022-11-02 21:10:05,989 INFO  L270   CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=316, PETRI_PLACES=128, PETRI_TRANSITIONS=104}
[2022-11-02 21:10:05,993 INFO  L287   CegarLoopForPetriNet]: 123 programPoint places, 5 predicate places.
[2022-11-02 21:10:05,993 INFO  L495      AbstractCegarLoop]: Abstraction has has 128 places, 104 transitions, 316 flow
[2022-11-02 21:10:05,994 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 97.125) internal successors, (777), 8 states have internal predecessors, (777), 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)
[2022-11-02 21:10:05,994 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2022-11-02 21:10:05,994 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:05,995 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-11-02 21:10:05,995 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2022-11-02 21:10:05,996 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:05,996 INFO  L85        PathProgramCache]: Analyzing trace with hash 1475209972, now seen corresponding path program 1 times
[2022-11-02 21:10:05,996 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:05,996 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789855567]
[2022-11-02 21:10:05,997 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:05,997 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:06,091 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:06,536 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:06,539 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:06,540 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789855567]
[2022-11-02 21:10:06,540 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789855567] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:06,540 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:06,540 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-11-02 21:10:06,544 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134384034]
[2022-11-02 21:10:06,545 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:06,545 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 21:10:06,545 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:06,547 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 21:10:06,548 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-11-02 21:10:06,549 INFO  L477   CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118
[2022-11-02 21:10:06,550 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 104 transitions, 316 flow. Second operand  has 7 states, 7 states have (on average 92.42857142857143) internal successors, (647), 7 states have internal predecessors, (647), 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)
[2022-11-02 21:10:06,550 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 21:10:06,550 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118
[2022-11-02 21:10:06,551 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 21:10:06,894 INFO  L130       PetriNetUnfolder]: 92/398 cut-off events.
[2022-11-02 21:10:06,894 INFO  L131       PetriNetUnfolder]: For 237/244 co-relation queries the response was YES.
[2022-11-02 21:10:06,896 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 832 conditions, 398 events. 92/398 cut-off events. For 237/244 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1698 event pairs, 38 based on Foata normal form. 1/387 useless extension candidates. Maximal degree in co-relation 784. Up to 108 conditions per place. 
[2022-11-02 21:10:06,898 INFO  L137   encePairwiseOnDemand]: 105/118 looper letters, 27 selfloop transitions, 9 changer transitions 5/121 dead transitions.
[2022-11-02 21:10:06,898 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 121 transitions, 436 flow
[2022-11-02 21:10:06,898 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-11-02 21:10:06,899 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2022-11-02 21:10:06,900 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 754 transitions.
[2022-11-02 21:10:06,901 INFO  L522   CegarLoopForPetriNet]: DFA transition density 0.798728813559322
[2022-11-02 21:10:06,901 INFO  L72            ComplementDD]: Start complementDD. Operand 8 states and 754 transitions.
[2022-11-02 21:10:06,901 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 8 states and 754 transitions.
[2022-11-02 21:10:06,902 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 21:10:06,902 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 754 transitions.
[2022-11-02 21:10:06,905 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 9 states, 8 states have (on average 94.25) internal successors, (754), 8 states have internal predecessors, (754), 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)
[2022-11-02 21:10:06,907 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 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)
[2022-11-02 21:10:06,907 INFO  L81            ComplementDD]: Finished complementDD. Result  has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 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)
[2022-11-02 21:10:06,908 INFO  L175             Difference]: Start difference. First operand has 128 places, 104 transitions, 316 flow. Second operand 8 states and 754 transitions.
[2022-11-02 21:10:06,908 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 121 transitions, 436 flow
[2022-11-02 21:10:06,911 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 121 transitions, 354 flow, removed 22 selfloop flow, removed 15 redundant places.
[2022-11-02 21:10:06,914 INFO  L231             Difference]: Finished difference. Result has 121 places, 108 transitions, 285 flow
[2022-11-02 21:10:06,914 INFO  L270   CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=285, PETRI_PLACES=121, PETRI_TRANSITIONS=108}
[2022-11-02 21:10:06,915 INFO  L287   CegarLoopForPetriNet]: 123 programPoint places, -2 predicate places.
[2022-11-02 21:10:06,915 INFO  L495      AbstractCegarLoop]: Abstraction has has 121 places, 108 transitions, 285 flow
[2022-11-02 21:10:06,915 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 92.42857142857143) internal successors, (647), 7 states have internal predecessors, (647), 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)
[2022-11-02 21:10:06,915 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2022-11-02 21:10:06,916 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:06,916 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-11-02 21:10:06,916 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2022-11-02 21:10:06,917 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:06,917 INFO  L85        PathProgramCache]: Analyzing trace with hash 2087163542, now seen corresponding path program 2 times
[2022-11-02 21:10:06,917 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:06,917 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130419213]
[2022-11-02 21:10:06,918 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:06,918 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:07,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:07,346 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:07,346 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:07,346 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130419213]
[2022-11-02 21:10:07,347 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130419213] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:07,347 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:07,347 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-11-02 21:10:07,347 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923038296]
[2022-11-02 21:10:07,347 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:07,348 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 21:10:07,348 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:07,348 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 21:10:07,349 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-11-02 21:10:07,350 INFO  L477   CegarLoopForPetriNet]: Number of universal loopers: 95 out of 118
[2022-11-02 21:10:07,351 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 108 transitions, 285 flow. Second operand  has 7 states, 7 states have (on average 97.57142857142857) internal successors, (683), 7 states have internal predecessors, (683), 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)
[2022-11-02 21:10:07,351 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 21:10:07,351 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 118
[2022-11-02 21:10:07,351 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 21:10:07,691 INFO  L130       PetriNetUnfolder]: 69/389 cut-off events.
[2022-11-02 21:10:07,692 INFO  L131       PetriNetUnfolder]: For 66/76 co-relation queries the response was YES.
[2022-11-02 21:10:07,694 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 686 conditions, 389 events. 69/389 cut-off events. For 66/76 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1877 event pairs, 16 based on Foata normal form. 1/377 useless extension candidates. Maximal degree in co-relation 674. Up to 64 conditions per place. 
[2022-11-02 21:10:07,695 INFO  L137   encePairwiseOnDemand]: 112/118 looper letters, 19 selfloop transitions, 1 changer transitions 15/121 dead transitions.
[2022-11-02 21:10:07,696 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 121 transitions, 391 flow
[2022-11-02 21:10:07,696 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-11-02 21:10:07,696 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2022-11-02 21:10:07,698 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 698 transitions.
[2022-11-02 21:10:07,699 INFO  L522   CegarLoopForPetriNet]: DFA transition density 0.8450363196125908
[2022-11-02 21:10:07,699 INFO  L72            ComplementDD]: Start complementDD. Operand 7 states and 698 transitions.
[2022-11-02 21:10:07,699 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 698 transitions.
[2022-11-02 21:10:07,700 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 21:10:07,700 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 698 transitions.
[2022-11-02 21:10:07,703 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 8 states, 7 states have (on average 99.71428571428571) internal successors, (698), 7 states have internal predecessors, (698), 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)
[2022-11-02 21:10:07,705 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 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)
[2022-11-02 21:10:07,706 INFO  L81            ComplementDD]: Finished complementDD. Result  has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 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)
[2022-11-02 21:10:07,706 INFO  L175             Difference]: Start difference. First operand has 121 places, 108 transitions, 285 flow. Second operand 7 states and 698 transitions.
[2022-11-02 21:10:07,706 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 121 transitions, 391 flow
[2022-11-02 21:10:07,708 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 121 transitions, 372 flow, removed 5 selfloop flow, removed 5 redundant places.
[2022-11-02 21:10:07,710 INFO  L231             Difference]: Finished difference. Result has 123 places, 104 transitions, 256 flow
[2022-11-02 21:10:07,711 INFO  L270   CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=256, PETRI_PLACES=123, PETRI_TRANSITIONS=104}
[2022-11-02 21:10:07,712 INFO  L287   CegarLoopForPetriNet]: 123 programPoint places, 0 predicate places.
[2022-11-02 21:10:07,712 INFO  L495      AbstractCegarLoop]: Abstraction has has 123 places, 104 transitions, 256 flow
[2022-11-02 21:10:07,713 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 97.57142857142857) internal successors, (683), 7 states have internal predecessors, (683), 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)
[2022-11-02 21:10:07,713 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2022-11-02 21:10:07,713 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:07,714 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-11-02 21:10:07,714 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2022-11-02 21:10:07,714 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:07,715 INFO  L85        PathProgramCache]: Analyzing trace with hash 120216724, now seen corresponding path program 3 times
[2022-11-02 21:10:07,715 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:07,715 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227534524]
[2022-11-02 21:10:07,715 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:07,716 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:07,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:08,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:08,205 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:08,205 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227534524]
[2022-11-02 21:10:08,205 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227534524] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:08,206 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:08,206 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-11-02 21:10:08,206 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225377373]
[2022-11-02 21:10:08,206 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:08,207 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 21:10:08,207 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:08,208 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 21:10:08,208 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-11-02 21:10:08,209 INFO  L477   CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118
[2022-11-02 21:10:08,210 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 104 transitions, 256 flow. Second operand  has 7 states, 7 states have (on average 92.42857142857143) internal successors, (647), 7 states have internal predecessors, (647), 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)
[2022-11-02 21:10:08,210 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 21:10:08,210 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118
[2022-11-02 21:10:08,210 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 21:10:08,549 INFO  L130       PetriNetUnfolder]: 76/392 cut-off events.
[2022-11-02 21:10:08,550 INFO  L131       PetriNetUnfolder]: For 26/26 co-relation queries the response was YES.
[2022-11-02 21:10:08,552 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 719 conditions, 392 events. 76/392 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1874 event pairs, 5 based on Foata normal form. 1/383 useless extension candidates. Maximal degree in co-relation 706. Up to 84 conditions per place. 
[2022-11-02 21:10:08,553 INFO  L137   encePairwiseOnDemand]: 105/118 looper letters, 25 selfloop transitions, 8 changer transitions 8/121 dead transitions.
[2022-11-02 21:10:08,553 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 121 transitions, 392 flow
[2022-11-02 21:10:08,554 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-11-02 21:10:08,554 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2022-11-02 21:10:08,556 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 754 transitions.
[2022-11-02 21:10:08,556 INFO  L522   CegarLoopForPetriNet]: DFA transition density 0.798728813559322
[2022-11-02 21:10:08,556 INFO  L72            ComplementDD]: Start complementDD. Operand 8 states and 754 transitions.
[2022-11-02 21:10:08,557 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 8 states and 754 transitions.
[2022-11-02 21:10:08,557 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 21:10:08,557 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 754 transitions.
[2022-11-02 21:10:08,559 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 9 states, 8 states have (on average 94.25) internal successors, (754), 8 states have internal predecessors, (754), 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)
[2022-11-02 21:10:08,561 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 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)
[2022-11-02 21:10:08,562 INFO  L81            ComplementDD]: Finished complementDD. Result  has 9 states, 9 states have (on average 118.0) internal successors, (1062), 9 states have internal predecessors, (1062), 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)
[2022-11-02 21:10:08,562 INFO  L175             Difference]: Start difference. First operand has 123 places, 104 transitions, 256 flow. Second operand 8 states and 754 transitions.
[2022-11-02 21:10:08,562 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 121 transitions, 392 flow
[2022-11-02 21:10:08,564 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 121 transitions, 373 flow, removed 9 selfloop flow, removed 5 redundant places.
[2022-11-02 21:10:08,566 INFO  L231             Difference]: Finished difference. Result has 125 places, 107 transitions, 296 flow
[2022-11-02 21:10:08,566 INFO  L270   CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=296, PETRI_PLACES=125, PETRI_TRANSITIONS=107}
[2022-11-02 21:10:08,568 INFO  L287   CegarLoopForPetriNet]: 123 programPoint places, 2 predicate places.
[2022-11-02 21:10:08,568 INFO  L495      AbstractCegarLoop]: Abstraction has has 125 places, 107 transitions, 296 flow
[2022-11-02 21:10:08,569 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 92.42857142857143) internal successors, (647), 7 states have internal predecessors, (647), 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)
[2022-11-02 21:10:08,569 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2022-11-02 21:10:08,569 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:08,569 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-11-02 21:10:08,569 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2022-11-02 21:10:08,572 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:08,572 INFO  L85        PathProgramCache]: Analyzing trace with hash -613070238, now seen corresponding path program 4 times
[2022-11-02 21:10:08,572 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:08,572 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742232544]
[2022-11-02 21:10:08,573 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:08,573 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:08,637 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:12,114 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:12,115 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:12,115 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742232544]
[2022-11-02 21:10:12,115 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742232544] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:12,115 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:12,116 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2022-11-02 21:10:12,116 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147513994]
[2022-11-02 21:10:12,116 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:12,116 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-11-02 21:10:12,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:12,117 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-11-02 21:10:12,117 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132
[2022-11-02 21:10:12,119 INFO  L477   CegarLoopForPetriNet]: Number of universal loopers: 91 out of 118
[2022-11-02 21:10:12,120 INFO  L100   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 107 transitions, 296 flow. Second operand  has 12 states, 12 states have (on average 92.83333333333333) internal successors, (1114), 12 states have internal predecessors, (1114), 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)
[2022-11-02 21:10:12,120 INFO  L109   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2022-11-02 21:10:12,120 INFO  L110   encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 118
[2022-11-02 21:10:12,121 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2022-11-02 21:10:12,609 INFO  L130       PetriNetUnfolder]: 49/384 cut-off events.
[2022-11-02 21:10:12,609 INFO  L131       PetriNetUnfolder]: For 75/161 co-relation queries the response was YES.
[2022-11-02 21:10:12,611 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 685 conditions, 384 events. 49/384 cut-off events. For 75/161 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1944 event pairs, 2 based on Foata normal form. 1/373 useless extension candidates. Maximal degree in co-relation 671. Up to 46 conditions per place. 
[2022-11-02 21:10:12,612 INFO  L137   encePairwiseOnDemand]: 105/118 looper letters, 15 selfloop transitions, 9 changer transitions 16/124 dead transitions.
[2022-11-02 21:10:12,612 INFO  L142   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 124 transitions, 452 flow
[2022-11-02 21:10:12,613 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2022-11-02 21:10:12,613 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 15 states.
[2022-11-02 21:10:12,616 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1402 transitions.
[2022-11-02 21:10:12,617 INFO  L522   CegarLoopForPetriNet]: DFA transition density 0.792090395480226
[2022-11-02 21:10:12,617 INFO  L72            ComplementDD]: Start complementDD. Operand 15 states and 1402 transitions.
[2022-11-02 21:10:12,618 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 15 states and 1402 transitions.
[2022-11-02 21:10:12,619 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 21:10:12,619 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1402 transitions.
[2022-11-02 21:10:12,623 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 16 states, 15 states have (on average 93.46666666666667) internal successors, (1402), 15 states have internal predecessors, (1402), 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)
[2022-11-02 21:10:12,627 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 16 states, 16 states have (on average 118.0) internal successors, (1888), 16 states have internal predecessors, (1888), 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)
[2022-11-02 21:10:12,629 INFO  L81            ComplementDD]: Finished complementDD. Result  has 16 states, 16 states have (on average 118.0) internal successors, (1888), 16 states have internal predecessors, (1888), 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)
[2022-11-02 21:10:12,629 INFO  L175             Difference]: Start difference. First operand has 125 places, 107 transitions, 296 flow. Second operand 15 states and 1402 transitions.
[2022-11-02 21:10:12,629 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 124 transitions, 452 flow
[2022-11-02 21:10:12,631 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 124 transitions, 421 flow, removed 11 selfloop flow, removed 5 redundant places.
[2022-11-02 21:10:12,634 INFO  L231             Difference]: Finished difference. Result has 138 places, 108 transitions, 316 flow
[2022-11-02 21:10:12,635 INFO  L270   CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=316, PETRI_PLACES=138, PETRI_TRANSITIONS=108}
[2022-11-02 21:10:12,636 INFO  L287   CegarLoopForPetriNet]: 123 programPoint places, 15 predicate places.
[2022-11-02 21:10:12,637 INFO  L495      AbstractCegarLoop]: Abstraction has has 138 places, 108 transitions, 316 flow
[2022-11-02 21:10:12,638 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 92.83333333333333) internal successors, (1114), 12 states have internal predecessors, (1114), 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)
[2022-11-02 21:10:12,638 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2022-11-02 21:10:12,638 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:12,638 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-11-02 21:10:12,639 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] ===
[2022-11-02 21:10:12,639 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:12,640 INFO  L85        PathProgramCache]: Analyzing trace with hash 878075794, now seen corresponding path program 5 times
[2022-11-02 21:10:12,642 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:12,644 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952008715]
[2022-11-02 21:10:12,645 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:12,645 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:12,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 21:10:12,750 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 21:10:12,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 21:10:12,942 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 21:10:12,943 INFO  L359         BasicCegarLoop]: Counterexample is feasible
[2022-11-02 21:10:12,944 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining)
[2022-11-02 21:10:12,947 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining)
[2022-11-02 21:10:12,947 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining)
[2022-11-02 21:10:12,948 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining)
[2022-11-02 21:10:12,948 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining)
[2022-11-02 21:10:12,948 INFO  L805   garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining)
[2022-11-02 21:10:12,949 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2022-11-02 21:10:12,949 INFO  L444         BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:12,957 INFO  L228   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-11-02 21:10:12,958 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 21:10:13,223 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:10:13 BasicIcfg
[2022-11-02 21:10:13,228 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 21:10:13,230 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 21:10:13,231 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2022-11-02 21:10:13,231 INFO  L275        PluginConnector]: Witness Printer initialized
[2022-11-02 21:10:13,232 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:58" (3/4) ...
[2022-11-02 21:10:13,234 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2022-11-02 21:10:13,410 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 21:10:13,410 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 21:10:13,411 INFO  L158              Benchmark]: Toolchain (without parser) took 17359.75ms. Allocated memory was 90.2MB in the beginning and 314.6MB in the end (delta: 224.4MB). Free memory was 56.4MB in the beginning and 217.3MB in the end (delta: -160.9MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB.
[2022-11-02 21:10:13,412 INFO  L158              Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 48.6MB in the beginning and 48.6MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 21:10:13,413 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 867.83ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 56.3MB in the beginning and 82.1MB in the end (delta: -25.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 21:10:13,413 INFO  L158              Benchmark]: Boogie Procedure Inliner took 84.43ms. Allocated memory is still 119.5MB. Free memory was 81.7MB in the beginning and 78.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:10:13,413 INFO  L158              Benchmark]: Boogie Preprocessor took 51.36ms. Allocated memory is still 119.5MB. Free memory was 78.9MB in the beginning and 76.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:10:13,414 INFO  L158              Benchmark]: RCFGBuilder took 1758.00ms. Allocated memory is still 119.5MB. Free memory was 76.2MB in the beginning and 81.3MB in the end (delta: -5.1MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB.
[2022-11-02 21:10:13,414 INFO  L158              Benchmark]: TraceAbstraction took 14404.90ms. Allocated memory was 119.5MB in the beginning and 314.6MB in the end (delta: 195.0MB). Free memory was 81.3MB in the beginning and 257.2MB in the end (delta: -175.9MB). Peak memory consumption was 182.7MB. Max. memory is 16.1GB.
[2022-11-02 21:10:13,415 INFO  L158              Benchmark]: Witness Printer took 180.68ms. Allocated memory is still 314.6MB. Free memory was 257.2MB in the beginning and 217.3MB in the end (delta: 39.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
[2022-11-02 21:10:13,418 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 48.6MB in the beginning and 48.6MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 867.83ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 56.3MB in the beginning and 82.1MB in the end (delta: -25.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 84.43ms. Allocated memory is still 119.5MB. Free memory was 81.7MB in the beginning and 78.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 51.36ms. Allocated memory is still 119.5MB. Free memory was 78.9MB in the beginning and 76.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 1758.00ms. Allocated memory is still 119.5MB. Free memory was 76.2MB in the beginning and 81.3MB in the end (delta: -5.1MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB.
 * TraceAbstraction took 14404.90ms. Allocated memory was 119.5MB in the beginning and 314.6MB in the end (delta: 195.0MB). Free memory was 81.3MB in the beginning and 257.2MB in the end (delta: -175.9MB). Peak memory consumption was 182.7MB. Max. memory is 16.1GB.
 * Witness Printer took 180.68ms. Allocated memory is still 314.6MB. Free memory was 257.2MB in the beginning and 217.3MB in the end (delta: 39.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 18]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L709]               0  int __unbuffered_cnt = 0;
        VAL             [__unbuffered_cnt=0]
[L711]               0  int __unbuffered_p0_EAX = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0]
[L713]               0  int __unbuffered_p1_EAX = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0]
[L715]               0  int __unbuffered_p1_EBX = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0]
[L717]               0  int __unbuffered_p2_EAX = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0]
[L719]               0  int __unbuffered_p2_EBX = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0]
[L720]               0  _Bool main$tmp_guard0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0]
[L721]               0  _Bool main$tmp_guard1;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0]
[L723]               0  int x = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0]
[L725]               0  int y = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0]
[L726]               0  _Bool y$flush_delayed;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0]
[L727]               0  int y$mem_tmp;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0]
[L728]               0  _Bool y$r_buff0_thd0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0]
[L729]               0  _Bool y$r_buff0_thd1;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0]
[L730]               0  _Bool y$r_buff0_thd2;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0]
[L731]               0  _Bool y$r_buff0_thd3;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0]
[L732]               0  _Bool y$r_buff1_thd0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0]
[L733]               0  _Bool y$r_buff1_thd1;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0]
[L734]               0  _Bool y$r_buff1_thd2;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0]
[L735]               0  _Bool y$r_buff1_thd3;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0]
[L736]               0  _Bool y$read_delayed;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0]
[L737]               0  int *y$read_delayed_var;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}]
[L738]               0  int y$w_buff0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0]
[L739]               0  _Bool y$w_buff0_used;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0]
[L740]               0  int y$w_buff1;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0]
[L741]               0  _Bool y$w_buff1_used;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0]
[L743]               0  int z = 0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L744]               0  _Bool weak$$choice0;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L745]               0  _Bool weak$$choice2;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L848]               0  pthread_t t65;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t65={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L849]  FCALL, FORK  0  pthread_create(&t65, ((void *)0), P0, ((void *)0))
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t65, ((void *)0), P0, ((void *)0))=-2, t65={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L850]               0  pthread_t t66;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t65={5:0}, t66={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L851]  FCALL, FORK  0  pthread_create(&t66, ((void *)0), P1, ((void *)0))
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t66, ((void *)0), P1, ((void *)0))=-1, t65={5:0}, t66={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L852]               0  pthread_t t67;
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t65={5:0}, t66={6:0}, t67={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L853]  FCALL, FORK  0  pthread_create(&t67, ((void *)0), P2, ((void *)0))
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t67, ((void *)0), P2, ((void *)0))=0, t65={5:0}, t66={6:0}, t67={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L795]               3  y$w_buff1 = y$w_buff0
[L796]               3  y$w_buff0 = 1
[L797]               3  y$w_buff1_used = y$w_buff0_used
[L798]               3  y$w_buff0_used = (_Bool)1
[L799]  CALL         3  __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used))
[L18]   COND FALSE   3  !(!expression)
[L799]  RET          3  __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used))
[L800]               3  y$r_buff1_thd0 = y$r_buff0_thd0
[L801]               3  y$r_buff1_thd1 = y$r_buff0_thd1
[L802]               3  y$r_buff1_thd2 = y$r_buff0_thd2
[L803]               3  y$r_buff1_thd3 = y$r_buff0_thd3
[L804]               3  y$r_buff0_thd3 = (_Bool)1
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L807]               3  weak$$choice0 = __VERIFIER_nondet_bool()
[L808]               3  weak$$choice2 = __VERIFIER_nondet_bool()
[L809]               3  y$flush_delayed = weak$$choice2
[L810]               3  y$mem_tmp = y
[L811]  EXPR         3  !y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1)
[L811]  EXPR         3  y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1
[L811]  EXPR         3  !y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1)
[L811]               3  y = !y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff1)
[L812]  EXPR         3  weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff0))
[L812]               3  y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : y$w_buff0))
[L813]  EXPR         3  weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff1 : y$w_buff1))
[L813]               3  y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff1 : y$w_buff1))
[L814]  EXPR         3  weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used))
[L814]               3  y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used))
[L815]  EXPR         3  weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0))
[L815]               3  y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0))
[L816]  EXPR         3  weak$$choice2 ? y$r_buff0_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff0_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3))
[L816]               3  y$r_buff0_thd3 = weak$$choice2 ? y$r_buff0_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff0_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3))
[L817]  EXPR         3  weak$$choice2 ? y$r_buff1_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff1_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0))
[L817]               3  y$r_buff1_thd3 = weak$$choice2 ? y$r_buff1_thd3 : (!y$w_buff0_used || !y$r_buff0_thd3 && !y$w_buff1_used || !y$r_buff0_thd3 && !y$r_buff1_thd3 ? y$r_buff1_thd3 : (y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : (_Bool)0))
[L818]               3  __unbuffered_p2_EAX = y
[L819]  EXPR         3  y$flush_delayed ? y$mem_tmp : y
[L819]               3  y = y$flush_delayed ? y$mem_tmp : y
[L820]               3  y$flush_delayed = (_Bool)0
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L823]               3  __unbuffered_p2_EBX = z
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0]
[L749]               1  z = 1
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L752]               1  __unbuffered_p0_EAX = x
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L764]               2  x = 1
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L767]               2  __unbuffered_p1_EAX = x
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L770]               2  weak$$choice0 = __VERIFIER_nondet_bool()
[L771]               2  weak$$choice2 = __VERIFIER_nondet_bool()
[L772]               2  y$flush_delayed = weak$$choice2
[L773]               2  y$mem_tmp = y
[L774]  EXPR         2  !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1)
[L774]               2  y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1)
[L775]  EXPR         2  weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0))
[L775]  EXPR         2  !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)
[L775]  EXPR         2  weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0))
[L775]               2  y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0))
[L776]  EXPR         2  weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1))
[L776]  EXPR         2  !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)
[L776]  EXPR         2  weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1))
[L776]               2  y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1))
[L777]  EXPR         2  weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used))
[L777]  EXPR         2  !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)
[L777]  EXPR         2  weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used))
[L777]               2  y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used))
[L778]  EXPR         2  weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))
[L778]  EXPR         2  !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)
[L778]  EXPR         2  weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))
[L778]               2  y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))
[L779]  EXPR         2  weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2))
[L779]  EXPR         2  !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)
[L779]  EXPR         2  weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2))
[L779]               2  y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2))
[L780]  EXPR         2  weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))
[L780]  EXPR         2  !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)
[L780]  EXPR         2  weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))
[L780]               2  y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))
[L781]               2  __unbuffered_p1_EBX = y
[L782]  EXPR         2  y$flush_delayed ? y$mem_tmp : y
[L782]               2  y = y$flush_delayed ? y$mem_tmp : y
[L783]               2  y$flush_delayed = (_Bool)0
        VAL             [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L757]               1  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L788]               2  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L826]  EXPR         3  y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y)
[L826]               3  y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y)
[L827]  EXPR         3  y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used
[L827]               3  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used
[L828]  EXPR         3  y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used
[L828]               3  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used
[L829]  EXPR         3  y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3
[L829]               3  y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3
[L830]  EXPR         3  y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3
[L830]               3  y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3
[L833]               3  __unbuffered_cnt = __unbuffered_cnt + 1
        VAL             [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L855]               0  main$tmp_guard0 = __unbuffered_cnt == 3
        VAL             [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t65={5:0}, t66={6:0}, t67={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L857]  CALL         0  assume_abort_if_not(main$tmp_guard0)
[L3]    COND FALSE   0  !(!cond)
        VAL             [\old(cond)=1, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L857]  RET          0  assume_abort_if_not(main$tmp_guard0)
[L859]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y)
[L859]  EXPR         0  y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y
[L859]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y)
[L859]               0  y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y)
[L860]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used
[L860]               0  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used
[L861]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used
[L861]               0  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used
[L862]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0
[L862]               0  y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0
[L863]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0
[L863]               0  y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0
[L866]               0  main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0)
        VAL             [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t65={5:0}, t66={6:0}, t67={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L868]  CALL         0  __VERIFIER_assert(main$tmp_guard1)
[L18]   COND TRUE    0  !expression
        VAL             [\old(expression)=1, \old(expression)=0, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1]
[L18]                0  reach_error()
        VAL             [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1]

  - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: Not analyzed. 
  - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
 Reason: Not analyzed. 
  - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
 Reason: Not analyzed. 
  - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 7 procedures, 145 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 411 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 411 mSDsluCounter, 449 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 790 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1034 IncrementalHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 105 mSDtfsCounter, 1034 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=334occurred in iteration=5, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 935 NumberOfCodeBlocks, 935 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 833 ConstructedInterpolants, 0 QuantifiedInterpolants, 4355 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2022-11-02 21:10:13,486 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef67aab9-96ed-4a55-aa03-a12290dc7b64/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE