./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i --full-output --architecture 64bit


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


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_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/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_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/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 64bit --witnessprinter.graph.data.programhash f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f
--- 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 20:42:51,189 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:42:51,192 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:42:51,244 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:42:51,245 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:42:51,249 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:42:51,252 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:42:51,255 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:42:51,258 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:42:51,261 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:42:51,262 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:42:51,266 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:42:51,266 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:42:51,273 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:42:51,275 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:42:51,276 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:42:51,278 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:42:51,279 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:42:51,281 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:42:51,285 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:42:51,292 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:42:51,293 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:42:51,295 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:42:51,296 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:42:51,300 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:42:51,303 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:42:51,303 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:42:51,305 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:42:51,305 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:42:51,306 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:42:51,307 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:42:51,308 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:42:51,310 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:42:51,311 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:42:51,312 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:42:51,312 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:42:51,313 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:42:51,313 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:42:51,314 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:42:51,315 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:42:51,315 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:42:51,317 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf
[2022-11-02 20:42:51,358 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-02 20:42:51,359 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:42:51,359 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:42:51,360 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:42:51,360 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:42:51,361 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:42:51,361 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:42:51,362 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-11-02 20:42:51,362 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-11-02 20:42:51,362 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:42:51,363 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-11-02 20:42:51,363 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-02 20:42:51,364 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:42:51,364 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:42:51,364 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:42:51,364 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-11-02 20:42:51,364 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-02 20:42:51,365 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:42:51,365 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:42:51,365 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-11-02 20:42:51,365 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-02 20:42:51,366 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:42:51,366 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:42:51,366 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:42:51,366 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:42:51,366 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-11-02 20:42:51,368 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:42:51,368 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:42:51,368 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:42:51,369 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:42:51,369 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_8aa45b80-d9c3-4718-961e-387f43089b55/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_8aa45b80-d9c3-4718-961e-387f43089b55/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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f
[2022-11-02 20:42:51,692 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:42:51,728 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:42:51,731 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:42:51,733 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-02 20:42:51,734 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-02 20:42:51,735 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i
[2022-11-02 20:42:51,805 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/data/f65a7ced1/fde5f1b5bde141a9817e03c83d074fe2/FLAG61779a180
[2022-11-02 20:42:52,741 INFO  L306              CDTParser]: Found 1 translation units.
[2022-11-02 20:42:52,742 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i
[2022-11-02 20:42:52,806 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/data/f65a7ced1/fde5f1b5bde141a9817e03c83d074fe2/FLAG61779a180
[2022-11-02 20:42:53,298 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/data/f65a7ced1/fde5f1b5bde141a9817e03c83d074fe2
[2022-11-02 20:42:53,303 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:42:53,304 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:42:53,306 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:42:53,306 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:42:53,309 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:42:53,310 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:53" (1/1) ...
[2022-11-02 20:42:53,311 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9a58982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:53, skipping insertion in model container
[2022-11-02 20:42:53,312 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:53" (1/1) ...
[2022-11-02 20:42:53,319 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-02 20:42:53,456 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:42:55,905 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_8aa45b80-d9c3-4718-961e-387f43089b55/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210]
[2022-11-02 20:42:56,047 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:42:56,067 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-02 20:42:56,534 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_8aa45b80-d9c3-4718-961e-387f43089b55/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210]
[2022-11-02 20:42:56,544 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:42:56,665 INFO  L208         MainTranslator]: Completed translation
[2022-11-02 20:42:56,666 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56 WrapperNode
[2022-11-02 20:42:56,667 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:42:56,668 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:42:56,669 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:42:56,669 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:42:56,677 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56" (1/1) ...
[2022-11-02 20:42:56,795 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56" (1/1) ...
[2022-11-02 20:42:57,060 INFO  L138                Inliner]: procedures = 335, calls = 2629, calls flagged for inlining = 138, calls inlined = 130, statements flattened = 6648
[2022-11-02 20:42:57,061 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:42:57,062 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:42:57,062 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:42:57,062 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:42:57,072 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56" (1/1) ...
[2022-11-02 20:42:57,073 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56" (1/1) ...
[2022-11-02 20:42:57,119 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56" (1/1) ...
[2022-11-02 20:42:57,119 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56" (1/1) ...
[2022-11-02 20:42:57,256 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56" (1/1) ...
[2022-11-02 20:42:57,278 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56" (1/1) ...
[2022-11-02 20:42:57,307 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56" (1/1) ...
[2022-11-02 20:42:57,325 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56" (1/1) ...
[2022-11-02 20:42:57,377 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:42:57,378 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:42:57,378 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:42:57,379 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:42:57,380 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56" (1/1) ...
[2022-11-02 20:42:57,387 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:42:57,402 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:42:57,416 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:42:57,438 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:42:57,469 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_add_used_and_signal
[2022-11-02 20:42:57,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_add_used_and_signal
[2022-11-02 20:42:57,469 INFO  L130     BoogieDeclarations]: Found specification of procedure memcpy_toiovecend
[2022-11-02 20:42:57,469 INFO  L138     BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend
[2022-11-02 20:42:57,470 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_tx_net
[2022-11-02 20:42:57,470 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_tx_net
[2022-11-02 20:42:57,470 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs
[2022-11-02 20:42:57,470 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs
[2022-11-02 20:42:57,470 INFO  L130     BoogieDeclarations]: Found specification of procedure kref_sub
[2022-11-02 20:42:57,470 INFO  L138     BoogieDeclarations]: Found implementation of procedure kref_sub
[2022-11-02 20:42:57,470 INFO  L130     BoogieDeclarations]: Found specification of procedure vq_access_ok
[2022-11-02 20:42:57,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure vq_access_ok
[2022-11-02 20:42:57,471 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$
[2022-11-02 20:42:57,471 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_flush
[2022-11-02 20:42:57,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_flush
[2022-11-02 20:42:57,471 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2022-11-02 20:42:57,471 INFO  L130     BoogieDeclarations]: Found specification of procedure wake_up_process
[2022-11-02 20:42:57,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure wake_up_process
[2022-11-02 20:42:57,472 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_dev_check_owner
[2022-11-02 20:42:57,472 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_dev_check_owner
[2022-11-02 20:42:57,472 INFO  L130     BoogieDeclarations]: Found specification of procedure log_write
[2022-11-02 20:42:57,472 INFO  L138     BoogieDeclarations]: Found implementation of procedure log_write
[2022-11-02 20:42:57,472 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_tx
[2022-11-02 20:42:57,472 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_tx
[2022-11-02 20:42:57,473 INFO  L130     BoogieDeclarations]: Found specification of procedure variable_test_bit
[2022-11-02 20:42:57,473 INFO  L138     BoogieDeclarations]: Found implementation of procedure variable_test_bit
[2022-11-02 20:42:57,473 INFO  L130     BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled
[2022-11-02 20:42:57,473 INFO  L138     BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled
[2022-11-02 20:42:57,473 INFO  L130     BoogieDeclarations]: Found specification of procedure get_current
[2022-11-02 20:42:57,473 INFO  L138     BoogieDeclarations]: Found implementation of procedure get_current
[2022-11-02 20:42:57,473 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_vq_reset
[2022-11-02 20:42:57,474 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_vq_reset
[2022-11-02 20:42:57,474 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_malloc
[2022-11-02 20:42:57,474 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_malloc
[2022-11-02 20:42:57,474 INFO  L130     BoogieDeclarations]: Found specification of procedure vq_log_access_ok
[2022-11-02 20:42:57,474 INFO  L138     BoogieDeclarations]: Found implementation of procedure vq_log_access_ok
[2022-11-02 20:42:57,474 INFO  L130     BoogieDeclarations]: Found specification of procedure mutex_unlock
[2022-11-02 20:42:57,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure mutex_unlock
[2022-11-02 20:42:57,559 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_error
[2022-11-02 20:42:57,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_error
[2022-11-02 20:42:57,560 INFO  L130     BoogieDeclarations]: Found specification of procedure __put_user_bad
[2022-11-02 20:42:57,560 INFO  L130     BoogieDeclarations]: Found specification of procedure atomic_read
[2022-11-02 20:42:57,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure atomic_read
[2022-11-02 20:42:57,560 INFO  L130     BoogieDeclarations]: Found specification of procedure __vhost_add_used_n
[2022-11-02 20:42:57,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure __vhost_add_used_n
[2022-11-02 20:42:57,560 INFO  L130     BoogieDeclarations]: Found specification of procedure tx_poll_start
[2022-11-02 20:42:57,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure tx_poll_start
[2022-11-02 20:42:57,561 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_queue
[2022-11-02 20:42:57,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_queue
[2022-11-02 20:42:57,561 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_rx
[2022-11-02 20:42:57,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_rx
[2022-11-02 20:42:57,561 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_tx_kick
[2022-11-02 20:42:57,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_tx_kick
[2022-11-02 20:42:57,561 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_open
[2022-11-02 20:42:57,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_open
[2022-11-02 20:42:57,562 INFO  L130     BoogieDeclarations]: Found specification of procedure mutex_lock
[2022-11-02 20:42:57,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure mutex_lock
[2022-11-02 20:42:57,562 INFO  L130     BoogieDeclarations]: Found specification of procedure spinlock_check
[2022-11-02 20:42:57,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure spinlock_check
[2022-11-02 20:42:57,562 INFO  L130     BoogieDeclarations]: Found specification of procedure ERR_PTR
[2022-11-02 20:42:57,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure ERR_PTR
[2022-11-02 20:42:57,562 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_fget
[2022-11-02 20:42:57,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_fget
[2022-11-02 20:42:57,563 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_init
[2022-11-02 20:42:57,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_init
[2022-11-02 20:42:57,563 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-02 20:42:57,563 INFO  L130     BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD
[2022-11-02 20:42:57,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD
[2022-11-02 20:42:57,563 INFO  L130     BoogieDeclarations]: Found specification of procedure vq_memory_access_ok
[2022-11-02 20:42:57,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok
[2022-11-02 20:42:57,563 INFO  L130     BoogieDeclarations]: Found specification of procedure move_iovec_hdr
[2022-11-02 20:42:57,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure move_iovec_hdr
[2022-11-02 20:42:57,564 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2022-11-02 20:42:57,564 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore
[2022-11-02 20:42:57,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore
[2022-11-02 20:42:57,564 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_queue
[2022-11-02 20:42:57,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_queue
[2022-11-02 20:42:57,564 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_stop
[2022-11-02 20:42:57,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_stop
[2022-11-02 20:42:57,565 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-02 20:42:57,565 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2022-11-02 20:42:57,565 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup
[2022-11-02 20:42:57,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup
[2022-11-02 20:42:57,565 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_zerocopy_callback
[2022-11-02 20:42:57,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_callback
[2022-11-02 20:42:57,565 INFO  L130     BoogieDeclarations]: Found specification of procedure might_fault
[2022-11-02 20:42:57,566 INFO  L138     BoogieDeclarations]: Found implementation of procedure might_fault
[2022-11-02 20:42:57,566 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_flush_vq
[2022-11-02 20:42:57,566 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_flush_vq
[2022-11-02 20:42:57,566 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_stop_vq
[2022-11-02 20:42:57,567 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_stop_vq
[2022-11-02 20:42:57,567 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int
[2022-11-02 20:42:57,567 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int
[2022-11-02 20:42:57,567 INFO  L130     BoogieDeclarations]: Found specification of procedure __mutex_init
[2022-11-02 20:42:57,567 INFO  L138     BoogieDeclarations]: Found implementation of procedure __mutex_init
[2022-11-02 20:42:57,568 INFO  L130     BoogieDeclarations]: Found specification of procedure kmalloc
[2022-11-02 20:42:57,568 INFO  L138     BoogieDeclarations]: Found implementation of procedure kmalloc
[2022-11-02 20:42:57,569 INFO  L130     BoogieDeclarations]: Found specification of procedure fput
[2022-11-02 20:42:57,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure fput
[2022-11-02 20:42:57,569 INFO  L130     BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave
[2022-11-02 20:42:57,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave
[2022-11-02 20:42:57,570 INFO  L130     BoogieDeclarations]: Found specification of procedure next_desc
[2022-11-02 20:42:57,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure next_desc
[2022-11-02 20:42:57,570 INFO  L130     BoogieDeclarations]: Found specification of procedure iov_length
[2022-11-02 20:42:57,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure iov_length
[2022-11-02 20:42:57,570 INFO  L130     BoogieDeclarations]: Found specification of procedure tx_poll_stop
[2022-11-02 20:42:57,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure tx_poll_stop
[2022-11-02 20:42:57,571 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_handler_precall
[2022-11-02 20:42:57,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_handler_precall
[2022-11-02 20:42:57,571 INFO  L130     BoogieDeclarations]: Found specification of procedure schedule
[2022-11-02 20:42:57,571 INFO  L138     BoogieDeclarations]: Found implementation of procedure schedule
[2022-11-02 20:42:57,571 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~int
[2022-11-02 20:42:57,572 INFO  L130     BoogieDeclarations]: Found specification of procedure _copy_from_user
[2022-11-02 20:42:57,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure _copy_from_user
[2022-11-02 20:42:57,572 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_has_feature
[2022-11-02 20:42:57,572 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_has_feature
[2022-11-02 20:42:57,572 INFO  L130     BoogieDeclarations]: Found specification of procedure list_empty
[2022-11-02 20:42:57,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure list_empty
[2022-11-02 20:42:57,573 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2022-11-02 20:42:57,576 INFO  L130     BoogieDeclarations]: Found specification of procedure __rcu_read_lock
[2022-11-02 20:42:57,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure __rcu_read_lock
[2022-11-02 20:42:57,576 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-11-02 20:42:57,577 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_init
[2022-11-02 20:42:57,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_init
[2022-11-02 20:42:57,579 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget
[2022-11-02 20:42:57,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget
[2022-11-02 20:42:57,579 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_flush
[2022-11-02 20:42:57,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_flush
[2022-11-02 20:42:57,582 INFO  L130     BoogieDeclarations]: Found specification of procedure rcu_read_lock_held
[2022-11-02 20:42:57,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held
[2022-11-02 20:42:57,583 INFO  L130     BoogieDeclarations]: Found specification of procedure kfree
[2022-11-02 20:42:57,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure kfree
[2022-11-02 20:42:57,583 INFO  L130     BoogieDeclarations]: Found specification of procedure __get_user_bad
[2022-11-02 20:42:57,583 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_ubuf_put
[2022-11-02 20:42:57,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put
[2022-11-02 20:42:57,583 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-11-02 20:42:57,583 INFO  L130     BoogieDeclarations]: Found specification of procedure copy_to_user
[2022-11-02 20:42:57,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure copy_to_user
[2022-11-02 20:42:57,583 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex
[2022-11-02 20:42:57,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex
[2022-11-02 20:42:57,584 INFO  L130     BoogieDeclarations]: Found specification of procedure __rcu_read_unlock
[2022-11-02 20:42:57,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock
[2022-11-02 20:42:57,584 INFO  L130     BoogieDeclarations]: Found specification of procedure translate_desc
[2022-11-02 20:42:57,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure translate_desc
[2022-11-02 20:42:57,584 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_ctx_put
[2022-11-02 20:42:57,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put
[2022-11-02 20:42:57,584 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_ioctl
[2022-11-02 20:42:57,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_ioctl
[2022-11-02 20:42:57,585 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_disable_vq
[2022-11-02 20:42:57,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_disable_vq
[2022-11-02 20:42:57,585 INFO  L130     BoogieDeclarations]: Found specification of procedure mmput
[2022-11-02 20:42:57,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure mmput
[2022-11-02 20:42:57,585 INFO  L130     BoogieDeclarations]: Found specification of procedure kref_put
[2022-11-02 20:42:57,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure kref_put
[2022-11-02 20:42:57,585 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_unlock_irq
[2022-11-02 20:42:57,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_unlock_irq
[2022-11-02 20:42:57,586 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv__builtin_expect
[2022-11-02 20:42:57,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect
[2022-11-02 20:42:57,586 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_ubuf_put_and_wait
[2022-11-02 20:42:57,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put_and_wait
[2022-11-02 20:42:57,586 INFO  L130     BoogieDeclarations]: Found specification of procedure copy_user_generic
[2022-11-02 20:42:57,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure copy_user_generic
[2022-11-02 20:42:57,586 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-11-02 20:42:57,586 INFO  L130     BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle
[2022-11-02 20:42:57,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle
[2022-11-02 20:42:57,587 INFO  L130     BoogieDeclarations]: Found specification of procedure copy_from_user
[2022-11-02 20:42:57,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure copy_from_user
[2022-11-02 20:42:57,587 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_get_vq_desc
[2022-11-02 20:42:57,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_get_vq_desc
[2022-11-02 20:42:57,587 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:42:57,587 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_signal
[2022-11-02 20:42:57,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_signal
[2022-11-02 20:42:57,587 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_enable_notify
[2022-11-02 20:42:57,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_enable_notify
[2022-11-02 20:42:57,588 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_stop
[2022-11-02 20:42:57,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_stop
[2022-11-02 20:42:57,588 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2022-11-02 20:42:57,588 INFO  L130     BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious
[2022-11-02 20:42:57,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious
[2022-11-02 20:42:57,588 INFO  L130     BoogieDeclarations]: Found specification of procedure __bad_percpu_size
[2022-11-02 20:42:57,588 INFO  L130     BoogieDeclarations]: Found specification of procedure kthread_stop
[2022-11-02 20:42:57,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure kthread_stop
[2022-11-02 20:42:57,589 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID
[2022-11-02 20:42:57,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID
[2022-11-02 20:42:57,589 INFO  L130     BoogieDeclarations]: Found specification of procedure memory_access_ok
[2022-11-02 20:42:57,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure memory_access_ok
[2022-11-02 20:42:57,589 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_lock_irq
[2022-11-02 20:42:57,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_lock_irq
[2022-11-02 20:42:57,589 INFO  L130     BoogieDeclarations]: Found specification of procedure current_thread_info
[2022-11-02 20:42:57,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure current_thread_info
[2022-11-02 20:42:57,590 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_seq_done
[2022-11-02 20:42:57,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done
[2022-11-02 20:42:57,590 INFO  L130     BoogieDeclarations]: Found specification of procedure __wake_up
[2022-11-02 20:42:57,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure __wake_up
[2022-11-02 20:42:57,590 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_release
[2022-11-02 20:42:57,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_release
[2022-11-02 20:42:57,590 INFO  L130     BoogieDeclarations]: Found specification of procedure PTR_ERR
[2022-11-02 20:42:57,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure PTR_ERR
[2022-11-02 20:42:57,591 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_disable_notify
[2022-11-02 20:42:57,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_disable_notify
[2022-11-02 20:42:57,591 INFO  L130     BoogieDeclarations]: Found specification of procedure prepare_to_wait
[2022-11-02 20:42:57,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure prepare_to_wait
[2022-11-02 20:42:57,591 INFO  L130     BoogieDeclarations]: Found specification of procedure warn_slowpath_null
[2022-11-02 20:42:57,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure warn_slowpath_null
[2022-11-02 20:42:57,591 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_update_used_flags
[2022-11-02 20:42:57,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags
[2022-11-02 20:42:57,591 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_discard_vq_desc
[2022-11-02 20:42:57,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_discard_vq_desc
[2022-11-02 20:42:57,592 INFO  L130     BoogieDeclarations]: Found specification of procedure lock_is_held
[2022-11-02 20:42:57,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure lock_is_held
[2022-11-02 20:42:57,592 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_flush
[2022-11-02 20:42:57,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_flush
[2022-11-02 20:42:57,592 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex
[2022-11-02 20:42:57,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex
[2022-11-02 20:42:57,592 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int
[2022-11-02 20:42:57,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int
[2022-11-02 20:42:57,593 INFO  L130     BoogieDeclarations]: Found specification of procedure log_access_ok
[2022-11-02 20:42:57,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure log_access_ok
[2022-11-02 20:42:57,593 INFO  L130     BoogieDeclarations]: Found specification of procedure __init_waitqueue_head
[2022-11-02 20:42:57,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head
[2022-11-02 20:42:57,593 INFO  L130     BoogieDeclarations]: Found specification of procedure set_bit
[2022-11-02 20:42:57,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_bit
[2022-11-02 20:42:57,593 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_signal
[2022-11-02 20:42:57,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_signal
[2022-11-02 20:42:57,594 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 20:42:57,594 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_zerocopy_signal_used
[2022-11-02 20:42:57,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_signal_used
[2022-11-02 20:42:57,594 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_start
[2022-11-02 20:42:57,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_start
[2022-11-02 20:42:57,595 INFO  L130     BoogieDeclarations]: Found specification of procedure finish_wait
[2022-11-02 20:42:57,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure finish_wait
[2022-11-02 20:42:57,596 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:42:57,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:42:57,596 INFO  L130     BoogieDeclarations]: Found specification of procedure IS_ERR
[2022-11-02 20:42:57,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure IS_ERR
[2022-11-02 20:42:58,466 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-02 20:42:58,469 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:43:05,892 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5857: SUMMARY for call __copy_to_user_#t~ret139#1 := ldv__builtin_expect((if 0 != __copy_to_user_~ret~2#1 then 1 else 0), 0); srcloc: null
[2022-11-02 20:43:05,892 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5857-1: assume -9223372036854775808 <= __copy_to_user_#t~ret139#1 && __copy_to_user_#t~ret139#1 <= 9223372036854775807;__copy_to_user_~tmp___1~3#1 := __copy_to_user_#t~ret139#1;havoc __copy_to_user_#t~ret139#1;
[2022-11-02 20:43:05,892 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5845: SUMMARY for call __copy_to_user_#t~ret138#1 := ldv__builtin_expect((if 0 != __copy_to_user_~ret~2#1 then 1 else 0), 0); srcloc: null
[2022-11-02 20:43:05,892 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5845-1: assume -9223372036854775808 <= __copy_to_user_#t~ret138#1 && __copy_to_user_#t~ret138#1 <= 9223372036854775807;__copy_to_user_~tmp___0~6#1 := __copy_to_user_#t~ret138#1;havoc __copy_to_user_#t~ret138#1;
[2022-11-02 20:43:05,892 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume __copy_to_user_#t~switch137#1;
[2022-11-02 20:43:05,892 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume !__copy_to_user_#t~switch137#1;
[2022-11-02 20:43:05,892 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume 0 != __copy_to_user_~tmp___1~3#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:43:05,893 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume !(0 != __copy_to_user_~tmp___1~3#1);__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:43:05,893 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume __copy_to_user_#t~switch137#1;
[2022-11-02 20:43:05,893 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := true;
[2022-11-02 20:43:05,893 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5825: havoc __copy_to_user_#t~switch137#1;
[2022-11-02 20:43:05,893 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume 0 != __copy_to_user_~tmp___0~6#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:43:05,893 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume !(0 != __copy_to_user_~tmp___0~6#1);__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:43:05,893 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume __copy_to_user_#t~switch137#1;
[2022-11-02 20:43:05,893 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 16 == __copy_to_user_~size#1;
[2022-11-02 20:43:05,893 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:43:05,894 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 10 == __copy_to_user_~size#1;
[2022-11-02 20:43:05,894 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5867: SUMMARY for call __copy_to_user_#t~ret140#1 := copy_user_generic(__copy_to_user_~dst#1.base, __copy_to_user_~dst#1.offset, __copy_to_user_~src#1.base, __copy_to_user_~src#1.offset, __copy_to_user_~size#1); srcloc: null
[2022-11-02 20:43:05,894 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:43:05,894 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 8 == __copy_to_user_~size#1;
[2022-11-02 20:43:05,894 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5867-1: __copy_to_user_~tmp___2~4#1 := __copy_to_user_#t~ret140#1;havoc __copy_to_user_#t~ret140#1;__copy_to_user_#res#1 := (if __copy_to_user_~tmp___2~4#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_~tmp___2~4#1 % 18446744073709551616 % 4294967296 else __copy_to_user_~tmp___2~4#1 % 18446744073709551616 % 4294967296 - 4294967296);
[2022-11-02 20:43:05,894 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:43:05,894 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 4 == __copy_to_user_~size#1;
[2022-11-02 20:43:05,894 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:43:05,894 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 2 == __copy_to_user_~size#1;
[2022-11-02 20:43:08,694 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5785: SUMMARY for call __copy_from_user_#t~ret133#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~1#1 then 1 else 0), 0); srcloc: null
[2022-11-02 20:43:08,694 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5785-1: assume -9223372036854775808 <= __copy_from_user_#t~ret133#1 && __copy_from_user_#t~ret133#1 <= 9223372036854775807;__copy_from_user_~tmp___0~5#1 := __copy_from_user_#t~ret133#1;havoc __copy_from_user_#t~ret133#1;
[2022-11-02 20:43:08,695 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume 0 != __copy_from_user_~tmp___0~5#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:43:08,695 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume !(0 != __copy_from_user_~tmp___0~5#1);__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:43:08,695 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5760: havoc __copy_from_user_#t~switch132#1;
[2022-11-02 20:43:08,695 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume __copy_from_user_#t~switch132#1;
[2022-11-02 20:43:08,695 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := true;
[2022-11-02 20:43:08,695 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5798: SUMMARY for call __copy_from_user_#t~ret134#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~1#1 then 1 else 0), 0); srcloc: null
[2022-11-02 20:43:08,695 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5798-1: assume -9223372036854775808 <= __copy_from_user_#t~ret134#1 && __copy_from_user_#t~ret134#1 <= 9223372036854775807;__copy_from_user_~tmp___1~2#1 := __copy_from_user_#t~ret134#1;havoc __copy_from_user_#t~ret134#1;
[2022-11-02 20:43:08,695 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume 0 != __copy_from_user_~tmp___1~2#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:43:08,696 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume !(0 != __copy_from_user_~tmp___1~2#1);__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:43:08,696 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:43:08,696 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 4 == __copy_from_user_~size#1;
[2022-11-02 20:43:08,696 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:43:08,696 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 8 == __copy_from_user_~size#1;
[2022-11-02 20:43:08,696 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 2 == __copy_from_user_~size#1;
[2022-11-02 20:43:08,696 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:43:08,696 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume __copy_from_user_#t~switch132#1;
[2022-11-02 20:43:08,697 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume !__copy_from_user_#t~switch132#1;
[2022-11-02 20:43:08,697 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5808-1: __copy_from_user_~tmp___2~3#1 := __copy_from_user_#t~ret135#1;havoc __copy_from_user_#t~ret135#1;__copy_from_user_#res#1 := (if __copy_from_user_~tmp___2~3#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_~tmp___2~3#1 % 18446744073709551616 % 4294967296 else __copy_from_user_~tmp___2~3#1 % 18446744073709551616 % 4294967296 - 4294967296);
[2022-11-02 20:43:08,697 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5808: SUMMARY for call __copy_from_user_#t~ret135#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null
[2022-11-02 20:43:08,697 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:43:08,697 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 10 == __copy_from_user_~size#1;
[2022-11-02 20:43:08,697 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume __copy_from_user_#t~switch132#1;
[2022-11-02 20:43:08,697 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 16 == __copy_from_user_~size#1;
[2022-11-02 20:43:10,026 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-02 20:43:10,048 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:43:10,048 INFO  L300             CfgBuilder]: Removed 0 assume(true) statements.
[2022-11-02 20:43:10,053 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:43:10 BoogieIcfgContainer
[2022-11-02 20:43:10,053 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:43:10,056 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:43:10,056 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:43:10,060 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:43:10,060 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:42:53" (1/3) ...
[2022-11-02 20:43:10,061 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b34052b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:43:10, skipping insertion in model container
[2022-11-02 20:43:10,061 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:56" (2/3) ...
[2022-11-02 20:43:10,061 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b34052b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:43:10, skipping insertion in model container
[2022-11-02 20:43:10,062 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:43:10" (3/3) ...
[2022-11-02 20:43:10,063 INFO  L112   eAbstractionObserver]: Analyzing ICFG main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i
[2022-11-02 20:43:10,085 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:43:10,086 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 20:43:10,192 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:43:10,201 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;@2dd4fcaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:43:10,201 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 20:43:10,215 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2239 states, 1550 states have (on average 1.344516129032258) internal successors, (2084), 1596 states have internal predecessors, (2084), 579 states have call successors, (579), 108 states have call predecessors, (579), 108 states have return successors, (579), 574 states have call predecessors, (579), 579 states have call successors, (579)
[2022-11-02 20:43:10,223 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:43:10,224 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:43:10,224 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:43:10,225 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:43:10,232 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:10,232 INFO  L85        PathProgramCache]: Analyzing trace with hash -662016059, now seen corresponding path program 1 times
[2022-11-02 20:43:10,242 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:43:10,243 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050348585]
[2022-11-02 20:43:10,243 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:10,244 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:43:10,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:10,788 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-02 20:43:10,791 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:10,805 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 20:43:10,818 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:43:10,819 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050348585]
[2022-11-02 20:43:10,820 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050348585] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:10,820 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:10,820 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:43:10,822 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233268937]
[2022-11-02 20:43:10,822 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:10,827 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:43:10,827 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:43:10,862 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:43:10,864 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:43:10,871 INFO  L87              Difference]: Start difference. First operand  has 2239 states, 1550 states have (on average 1.344516129032258) internal successors, (2084), 1596 states have internal predecessors, (2084), 579 states have call successors, (579), 108 states have call predecessors, (579), 108 states have return successors, (579), 574 states have call predecessors, (579), 579 states have call successors, (579) Second operand  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:43:11,191 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:11,191 INFO  L93              Difference]: Finished difference Result 4464 states and 6561 transitions.
[2022-11-02 20:43:11,192 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:43:11,194 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16
[2022-11-02 20:43:11,194 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:11,224 INFO  L225             Difference]: With dead ends: 4464
[2022-11-02 20:43:11,224 INFO  L226             Difference]: Without dead ends: 2228
[2022-11-02 20:43:11,242 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:43:11,245 INFO  L413           NwaCegarLoop]: 3230 mSDtfsCounter, 3220 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3220 SdHoareTripleChecker+Valid, 3230 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:11,246 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3220 Valid, 3230 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:43:11,268 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2228 states.
[2022-11-02 20:43:11,453 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2228.
[2022-11-02 20:43:11,461 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2228 states, 1542 states have (on average 1.3411154345006484) internal successors, (2068), 1585 states have internal predecessors, (2068), 578 states have call successors, (578), 108 states have call predecessors, (578), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573)
[2022-11-02 20:43:11,479 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 3219 transitions.
[2022-11-02 20:43:11,483 INFO  L78                 Accepts]: Start accepts. Automaton has 2228 states and 3219 transitions. Word has length 16
[2022-11-02 20:43:11,486 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:11,486 INFO  L495      AbstractCegarLoop]: Abstraction has 2228 states and 3219 transitions.
[2022-11-02 20:43:11,487 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:43:11,487 INFO  L276                IsEmpty]: Start isEmpty. Operand 2228 states and 3219 transitions.
[2022-11-02 20:43:11,488 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-11-02 20:43:11,489 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:43:11,489 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:43:11,490 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:43:11,490 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:43:11,491 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:11,491 INFO  L85        PathProgramCache]: Analyzing trace with hash 951309113, now seen corresponding path program 1 times
[2022-11-02 20:43:11,491 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:43:11,492 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831055290]
[2022-11-02 20:43:11,492 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:11,492 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:43:11,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:11,739 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-02 20:43:11,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:11,753 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 20:43:11,753 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:43:11,754 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831055290]
[2022-11-02 20:43:11,754 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831055290] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:11,754 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:11,755 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:43:11,755 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784795405]
[2022-11-02 20:43:11,755 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:11,756 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:43:11,757 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:43:11,757 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:43:11,757 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:43:11,758 INFO  L87              Difference]: Start difference. First operand 2228 states and 3219 transitions. Second operand  has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:43:11,919 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:11,919 INFO  L93              Difference]: Finished difference Result 2230 states and 3220 transitions.
[2022-11-02 20:43:11,919 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:43:11,920 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2022-11-02 20:43:11,920 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:11,936 INFO  L225             Difference]: With dead ends: 2230
[2022-11-02 20:43:11,937 INFO  L226             Difference]: Without dead ends: 2227
[2022-11-02 20:43:11,943 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:43:11,945 INFO  L413           NwaCegarLoop]: 3216 mSDtfsCounter, 3205 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3205 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:11,946 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3205 Valid, 3216 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:43:11,952 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2227 states.
[2022-11-02 20:43:12,078 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2227.
[2022-11-02 20:43:12,083 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2227 states, 1542 states have (on average 1.3404669260700388) internal successors, (2067), 1584 states have internal predecessors, (2067), 577 states have call successors, (577), 108 states have call predecessors, (577), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573)
[2022-11-02 20:43:12,099 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3217 transitions.
[2022-11-02 20:43:12,099 INFO  L78                 Accepts]: Start accepts. Automaton has 2227 states and 3217 transitions. Word has length 17
[2022-11-02 20:43:12,099 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:12,100 INFO  L495      AbstractCegarLoop]: Abstraction has 2227 states and 3217 transitions.
[2022-11-02 20:43:12,101 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:43:12,101 INFO  L276                IsEmpty]: Start isEmpty. Operand 2227 states and 3217 transitions.
[2022-11-02 20:43:12,102 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-11-02 20:43:12,102 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:43:12,102 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:43:12,102 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-02 20:43:12,103 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:43:12,103 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:12,103 INFO  L85        PathProgramCache]: Analyzing trace with hash -575213240, now seen corresponding path program 1 times
[2022-11-02 20:43:12,104 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:43:12,104 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35646808]
[2022-11-02 20:43:12,104 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:12,104 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:43:12,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:12,254 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-02 20:43:12,257 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:12,267 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 20:43:12,267 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:43:12,268 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35646808]
[2022-11-02 20:43:12,268 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35646808] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:12,269 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:12,269 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:43:12,269 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921515769]
[2022-11-02 20:43:12,269 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:12,270 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:43:12,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:43:12,271 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:43:12,271 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:43:12,271 INFO  L87              Difference]: Start difference. First operand 2227 states and 3217 transitions. Second operand  has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:43:12,473 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:12,473 INFO  L93              Difference]: Finished difference Result 2229 states and 3218 transitions.
[2022-11-02 20:43:12,473 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:43:12,473 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18
[2022-11-02 20:43:12,474 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:12,486 INFO  L225             Difference]: With dead ends: 2229
[2022-11-02 20:43:12,486 INFO  L226             Difference]: Without dead ends: 2226
[2022-11-02 20:43:12,490 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:43:12,495 INFO  L413           NwaCegarLoop]: 3214 mSDtfsCounter, 3202 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3202 SdHoareTripleChecker+Valid, 3214 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:12,497 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3202 Valid, 3214 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:43:12,501 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2226 states.
[2022-11-02 20:43:12,629 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 2226.
[2022-11-02 20:43:12,634 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2226 states, 1542 states have (on average 1.3398184176394292) internal successors, (2066), 1583 states have internal predecessors, (2066), 576 states have call successors, (576), 108 states have call predecessors, (576), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573)
[2022-11-02 20:43:12,650 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 3215 transitions.
[2022-11-02 20:43:12,650 INFO  L78                 Accepts]: Start accepts. Automaton has 2226 states and 3215 transitions. Word has length 18
[2022-11-02 20:43:12,650 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:12,651 INFO  L495      AbstractCegarLoop]: Abstraction has 2226 states and 3215 transitions.
[2022-11-02 20:43:12,651 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:43:12,651 INFO  L276                IsEmpty]: Start isEmpty. Operand 2226 states and 3215 transitions.
[2022-11-02 20:43:12,652 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-11-02 20:43:12,652 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:43:12,652 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:43:12,652 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-02 20:43:12,652 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:43:12,653 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:12,653 INFO  L85        PathProgramCache]: Analyzing trace with hash -652761060, now seen corresponding path program 1 times
[2022-11-02 20:43:12,653 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:43:12,653 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539169833]
[2022-11-02 20:43:12,653 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:12,654 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:43:12,693 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:12,759 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-02 20:43:12,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:12,767 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 20:43:12,768 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:43:12,768 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539169833]
[2022-11-02 20:43:12,768 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539169833] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:12,768 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:12,768 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:43:12,769 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155412786]
[2022-11-02 20:43:12,769 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:12,769 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:43:12,770 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:43:12,770 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:43:12,770 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:43:12,770 INFO  L87              Difference]: Start difference. First operand 2226 states and 3215 transitions. Second operand  has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:43:13,105 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:13,105 INFO  L93              Difference]: Finished difference Result 5137 states and 7376 transitions.
[2022-11-02 20:43:13,111 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:43:13,112 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19
[2022-11-02 20:43:13,112 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:13,136 INFO  L225             Difference]: With dead ends: 5137
[2022-11-02 20:43:13,136 INFO  L226             Difference]: Without dead ends: 2913
[2022-11-02 20:43:13,147 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:43:13,154 INFO  L413           NwaCegarLoop]: 3667 mSDtfsCounter, 1302 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 6466 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:13,155 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 6466 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:43:13,161 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2913 states.
[2022-11-02 20:43:13,337 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2910.
[2022-11-02 20:43:13,344 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2910 states, 2009 states have (on average 1.321553011448482) internal successors, (2655), 2071 states have internal predecessors, (2655), 721 states have call successors, (721), 183 states have call predecessors, (721), 179 states have return successors, (731), 698 states have call predecessors, (731), 708 states have call successors, (731)
[2022-11-02 20:43:13,362 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2910 states to 2910 states and 4107 transitions.
[2022-11-02 20:43:13,363 INFO  L78                 Accepts]: Start accepts. Automaton has 2910 states and 4107 transitions. Word has length 19
[2022-11-02 20:43:13,364 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:13,364 INFO  L495      AbstractCegarLoop]: Abstraction has 2910 states and 4107 transitions.
[2022-11-02 20:43:13,364 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:43:13,364 INFO  L276                IsEmpty]: Start isEmpty. Operand 2910 states and 4107 transitions.
[2022-11-02 20:43:13,376 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2022-11-02 20:43:13,377 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:43:13,377 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:43:13,377 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-11-02 20:43:13,378 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:43:13,378 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:13,378 INFO  L85        PathProgramCache]: Analyzing trace with hash 1639297723, now seen corresponding path program 1 times
[2022-11-02 20:43:13,378 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:43:13,379 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505063656]
[2022-11-02 20:43:13,379 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:13,379 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:43:13,441 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:13,608 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-02 20:43:13,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:13,618 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2022-11-02 20:43:13,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:13,630 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2022-11-02 20:43:13,641 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:13,648 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2022-11-02 20:43:13,656 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:13,661 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2022-11-02 20:43:13,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:13,680 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2022-11-02 20:43:13,687 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:13,696 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-02 20:43:13,697 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:43:13,697 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505063656]
[2022-11-02 20:43:13,697 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505063656] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:13,697 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:13,698 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-02 20:43:13,698 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801727690]
[2022-11-02 20:43:13,698 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:13,699 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:43:13,699 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:43:13,700 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:43:13,700 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:43:13,700 INFO  L87              Difference]: Start difference. First operand 2910 states and 4107 transitions. Second operand  has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2022-11-02 20:43:16,383 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-11-02 20:43:23,913 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-11-02 20:43:27,772 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-11-02 20:43:33,458 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:33,458 INFO  L93              Difference]: Finished difference Result 6348 states and 9025 transitions.
[2022-11-02 20:43:33,459 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-11-02 20:43:33,459 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56
[2022-11-02 20:43:33,460 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:33,483 INFO  L225             Difference]: With dead ends: 6348
[2022-11-02 20:43:33,483 INFO  L226             Difference]: Without dead ends: 3449
[2022-11-02 20:43:33,498 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:43:33,499 INFO  L413           NwaCegarLoop]: 2762 mSDtfsCounter, 2219 mSDsluCounter, 2821 mSDsCounter, 0 mSdLazyCounter, 4395 mSolverCounterSat, 1613 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 5583 SdHoareTripleChecker+Invalid, 6011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1613 IncrementalHoareTripleChecker+Valid, 4395 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:33,499 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 5583 Invalid, 6011 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1613 Valid, 4395 Invalid, 3 Unknown, 0 Unchecked, 19.2s Time]
[2022-11-02 20:43:33,504 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3449 states.
[2022-11-02 20:43:33,718 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3449 to 2965.
[2022-11-02 20:43:33,724 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2965 states, 2048 states have (on average 1.31884765625) internal successors, (2701), 2112 states have internal predecessors, (2701), 726 states have call successors, (726), 183 states have call predecessors, (726), 190 states have return successors, (750), 713 states have call predecessors, (750), 713 states have call successors, (750)
[2022-11-02 20:43:33,742 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 4177 transitions.
[2022-11-02 20:43:33,743 INFO  L78                 Accepts]: Start accepts. Automaton has 2965 states and 4177 transitions. Word has length 56
[2022-11-02 20:43:33,743 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:33,744 INFO  L495      AbstractCegarLoop]: Abstraction has 2965 states and 4177 transitions.
[2022-11-02 20:43:33,744 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2022-11-02 20:43:33,744 INFO  L276                IsEmpty]: Start isEmpty. Operand 2965 states and 4177 transitions.
[2022-11-02 20:43:33,746 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2022-11-02 20:43:33,746 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:43:33,746 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:43:33,746 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-11-02 20:43:33,747 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:43:33,747 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:33,747 INFO  L85        PathProgramCache]: Analyzing trace with hash -963749432, now seen corresponding path program 1 times
[2022-11-02 20:43:33,748 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:43:33,748 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353874825]
[2022-11-02 20:43:33,748 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:33,748 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:43:33,812 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:33,921 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-02 20:43:33,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:33,926 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2022-11-02 20:43:33,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:33,935 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2022-11-02 20:43:33,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:33,943 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2022-11-02 20:43:33,944 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:33,949 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2022-11-02 20:43:33,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:33,967 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2022-11-02 20:43:33,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:34,035 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-02 20:43:34,035 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:43:34,035 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353874825]
[2022-11-02 20:43:34,036 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353874825] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:34,036 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:34,036 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 20:43:34,036 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018366249]
[2022-11-02 20:43:34,036 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:34,037 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:43:34,037 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:43:34,037 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:43:34,038 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:43:34,038 INFO  L87              Difference]: Start difference. First operand 2965 states and 4177 transitions. Second operand  has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2022-11-02 20:43:36,509 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-11-02 20:43:40,258 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-11-02 20:43:44,209 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:44,209 INFO  L93              Difference]: Finished difference Result 6019 states and 8585 transitions.
[2022-11-02 20:43:44,210 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-11-02 20:43:44,210 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 62
[2022-11-02 20:43:44,210 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:44,227 INFO  L225             Difference]: With dead ends: 6019
[2022-11-02 20:43:44,227 INFO  L226             Difference]: Without dead ends: 3065
[2022-11-02 20:43:44,243 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:43:44,244 INFO  L413           NwaCegarLoop]: 2948 mSDtfsCounter, 1192 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 627 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 5430 SdHoareTripleChecker+Invalid, 2968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:44,244 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 5430 Invalid, 2968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 2339 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time]
[2022-11-02 20:43:44,249 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3065 states.
[2022-11-02 20:43:44,427 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 2965.
[2022-11-02 20:43:44,449 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2965 states, 2048 states have (on average 1.31591796875) internal successors, (2695), 2112 states have internal predecessors, (2695), 726 states have call successors, (726), 183 states have call predecessors, (726), 190 states have return successors, (750), 713 states have call predecessors, (750), 713 states have call successors, (750)
[2022-11-02 20:43:44,465 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 4171 transitions.
[2022-11-02 20:43:44,466 INFO  L78                 Accepts]: Start accepts. Automaton has 2965 states and 4171 transitions. Word has length 62
[2022-11-02 20:43:44,468 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:44,468 INFO  L495      AbstractCegarLoop]: Abstraction has 2965 states and 4171 transitions.
[2022-11-02 20:43:44,469 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2022-11-02 20:43:44,470 INFO  L276                IsEmpty]: Start isEmpty. Operand 2965 states and 4171 transitions.
[2022-11-02 20:43:44,472 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2022-11-02 20:43:44,472 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:43:44,473 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:43:44,473 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-11-02 20:43:44,473 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:43:44,474 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:44,474 INFO  L85        PathProgramCache]: Analyzing trace with hash -566496063, now seen corresponding path program 1 times
[2022-11-02 20:43:44,474 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:43:44,474 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637298868]
[2022-11-02 20:43:44,474 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:44,475 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:43:44,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:44,735 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-02 20:43:44,736 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:44,741 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2022-11-02 20:43:44,742 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:44,754 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2022-11-02 20:43:44,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:44,768 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2022-11-02 20:43:44,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:44,776 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2022-11-02 20:43:44,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:44,794 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2022-11-02 20:43:44,795 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:44,802 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-02 20:43:44,803 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:43:44,803 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637298868]
[2022-11-02 20:43:44,803 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637298868] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:44,803 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:44,803 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 20:43:44,804 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401211209]
[2022-11-02 20:43:44,804 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:44,804 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:43:44,804 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:43:44,805 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:43:44,805 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:43:44,805 INFO  L87              Difference]: Start difference. First operand 2965 states and 4171 transitions. Second operand  has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2022-11-02 20:43:47,215 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-11-02 20:43:50,462 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-11-02 20:43:52,913 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:52,913 INFO  L93              Difference]: Finished difference Result 5074 states and 7079 transitions.
[2022-11-02 20:43:52,913 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-11-02 20:43:52,913 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62
[2022-11-02 20:43:52,914 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:52,935 INFO  L225             Difference]: With dead ends: 5074
[2022-11-02 20:43:52,936 INFO  L226             Difference]: Without dead ends: 2542
[2022-11-02 20:43:52,948 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:43:52,949 INFO  L413           NwaCegarLoop]: 2645 mSDtfsCounter, 2832 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 1198 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3097 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 2678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1198 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:52,950 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3097 Valid, 3596 Invalid, 2678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1198 Valid, 1478 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time]
[2022-11-02 20:43:52,954 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2542 states.
[2022-11-02 20:43:53,118 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2420.
[2022-11-02 20:43:53,122 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2420 states, 1678 states have (on average 1.3039332538736592) internal successors, (2188), 1724 states have internal predecessors, (2188), 571 states have call successors, (571), 175 states have call predecessors, (571), 170 states have return successors, (556), 549 states have call predecessors, (556), 556 states have call successors, (556)
[2022-11-02 20:43:53,131 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3315 transitions.
[2022-11-02 20:43:53,132 INFO  L78                 Accepts]: Start accepts. Automaton has 2420 states and 3315 transitions. Word has length 62
[2022-11-02 20:43:53,132 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:53,133 INFO  L495      AbstractCegarLoop]: Abstraction has 2420 states and 3315 transitions.
[2022-11-02 20:43:53,133 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2022-11-02 20:43:53,133 INFO  L276                IsEmpty]: Start isEmpty. Operand 2420 states and 3315 transitions.
[2022-11-02 20:43:53,136 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2022-11-02 20:43:53,137 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:43:53,137 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:43:53,137 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-11-02 20:43:53,138 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:43:53,138 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:53,138 INFO  L85        PathProgramCache]: Analyzing trace with hash 2018660585, now seen corresponding path program 1 times
[2022-11-02 20:43:53,138 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:43:53,139 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769668651]
[2022-11-02 20:43:53,139 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:53,139 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:43:53,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:53,384 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-02 20:43:53,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:53,391 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2022-11-02 20:43:53,391 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:53,404 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2022-11-02 20:43:53,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:53,411 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2022-11-02 20:43:53,412 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:53,416 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2022-11-02 20:43:53,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:53,476 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2022-11-02 20:43:53,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:53,483 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-02 20:43:53,483 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:43:53,483 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769668651]
[2022-11-02 20:43:53,483 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769668651] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:53,484 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:53,484 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-11-02 20:43:53,484 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255183359]
[2022-11-02 20:43:53,484 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:53,485 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 20:43:53,485 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:43:53,485 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 20:43:53,485 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:43:53,486 INFO  L87              Difference]: Start difference. First operand 2420 states and 3315 transitions. Second operand  has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2022-11-02 20:43:56,426 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-11-02 20:43:58,486 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-11-02 20:44:00,529 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-11-02 20:44:02,575 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-11-02 20:44:12,769 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:44:12,769 INFO  L93              Difference]: Finished difference Result 2569 states and 3531 transitions.
[2022-11-02 20:44:12,770 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-11-02 20:44:12,770 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 65
[2022-11-02 20:44:12,770 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:44:12,785 INFO  L225             Difference]: With dead ends: 2569
[2022-11-02 20:44:12,786 INFO  L226             Difference]: Without dead ends: 2559
[2022-11-02 20:44:12,788 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2022-11-02 20:44:12,789 INFO  L413           NwaCegarLoop]: 2369 mSDtfsCounter, 1138 mSDsluCounter, 4952 mSDsCounter, 0 mSdLazyCounter, 6718 mSolverCounterSat, 502 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 7321 SdHoareTripleChecker+Invalid, 7224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 6718 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:44:12,789 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 7321 Invalid, 7224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 6718 Invalid, 4 Unknown, 0 Unchecked, 19.0s Time]
[2022-11-02 20:44:12,794 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2559 states.
[2022-11-02 20:44:12,991 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2425.
[2022-11-02 20:44:12,995 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2425 states, 1682 states have (on average 1.3032104637336503) internal successors, (2192), 1728 states have internal predecessors, (2192), 571 states have call successors, (571), 175 states have call predecessors, (571), 171 states have return successors, (559), 550 states have call predecessors, (559), 556 states have call successors, (559)
[2022-11-02 20:44:13,004 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2425 states to 2425 states and 3322 transitions.
[2022-11-02 20:44:13,004 INFO  L78                 Accepts]: Start accepts. Automaton has 2425 states and 3322 transitions. Word has length 65
[2022-11-02 20:44:13,005 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:44:13,005 INFO  L495      AbstractCegarLoop]: Abstraction has 2425 states and 3322 transitions.
[2022-11-02 20:44:13,005 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2022-11-02 20:44:13,005 INFO  L276                IsEmpty]: Start isEmpty. Operand 2425 states and 3322 transitions.
[2022-11-02 20:44:13,007 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2022-11-02 20:44:13,007 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:44:13,007 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:44:13,008 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-11-02 20:44:13,008 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:44:13,008 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:13,008 INFO  L85        PathProgramCache]: Analyzing trace with hash -996443033, now seen corresponding path program 1 times
[2022-11-02 20:44:13,009 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:44:13,009 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191649430]
[2022-11-02 20:44:13,009 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:13,009 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:44:13,153 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:44:13,153 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:44:13,257 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:44:13,332 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:44:13,332 INFO  L359         BasicCegarLoop]: Counterexample is feasible
[2022-11-02 20:44:13,334 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-02 20:44:13,338 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-11-02 20:44:13,342 INFO  L444         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:44:13,346 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:44:13,442 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:44:13 BoogieIcfgContainer
[2022-11-02 20:44:13,442 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:44:13,443 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:44:13,443 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:44:13,443 INFO  L275        PluginConnector]: Witness Printer initialized
[2022-11-02 20:44:13,444 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:43:10" (3/4) ...
[2022-11-02 20:44:13,447 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2022-11-02 20:44:13,447 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:44:13,448 INFO  L158              Benchmark]: Toolchain (without parser) took 80143.72ms. Allocated memory was 107.0MB in the beginning and 641.7MB in the end (delta: 534.8MB). Free memory was 76.1MB in the beginning and 390.8MB in the end (delta: -314.6MB). Peak memory consumption was 221.0MB. Max. memory is 16.1GB.
[2022-11-02 20:44:13,448 INFO  L158              Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:44:13,448 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 3362.25ms. Allocated memory was 107.0MB in the beginning and 148.9MB in the end (delta: 41.9MB). Free memory was 76.0MB in the beginning and 72.0MB in the end (delta: 4.0MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB.
[2022-11-02 20:44:13,449 INFO  L158              Benchmark]: Boogie Procedure Inliner took 392.64ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 72.0MB in the beginning and 128.4MB in the end (delta: -56.4MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB.
[2022-11-02 20:44:13,449 INFO  L158              Benchmark]: Boogie Preprocessor took 315.50ms. Allocated memory is still 211.8MB. Free memory was 128.4MB in the beginning and 90.7MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB.
[2022-11-02 20:44:13,449 INFO  L158              Benchmark]: RCFGBuilder took 12674.88ms. Allocated memory was 211.8MB in the beginning and 421.5MB in the end (delta: 209.7MB). Free memory was 90.7MB in the beginning and 297.5MB in the end (delta: -206.8MB). Peak memory consumption was 152.0MB. Max. memory is 16.1GB.
[2022-11-02 20:44:13,451 INFO  L158              Benchmark]: TraceAbstraction took 63386.80ms. Allocated memory was 421.5MB in the beginning and 641.7MB in the end (delta: 220.2MB). Free memory was 297.5MB in the beginning and 390.8MB in the end (delta: -93.3MB). Peak memory consumption was 128.0MB. Max. memory is 16.1GB.
[2022-11-02 20:44:13,451 INFO  L158              Benchmark]: Witness Printer took 4.29ms. Allocated memory is still 641.7MB. Free memory is still 390.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:44:13,453 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 3362.25ms. Allocated memory was 107.0MB in the beginning and 148.9MB in the end (delta: 41.9MB). Free memory was 76.0MB in the beginning and 72.0MB in the end (delta: 4.0MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 392.64ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 72.0MB in the beginning and 128.4MB in the end (delta: -56.4MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 315.50ms. Allocated memory is still 211.8MB. Free memory was 128.4MB in the beginning and 90.7MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB.
 * RCFGBuilder took 12674.88ms. Allocated memory was 211.8MB in the beginning and 421.5MB in the end (delta: 209.7MB). Free memory was 90.7MB in the beginning and 297.5MB in the end (delta: -206.8MB). Peak memory consumption was 152.0MB. Max. memory is 16.1GB.
 * TraceAbstraction took 63386.80ms. Allocated memory was 421.5MB in the beginning and 641.7MB in the end (delta: 220.2MB). Free memory was 297.5MB in the beginning and 390.8MB in the end (delta: -93.3MB). Peak memory consumption was 128.0MB. Max. memory is 16.1GB.
 * Witness Printer took 4.29ms. Allocated memory is still 641.7MB. Free memory is still 390.8MB. There was no memory consumed. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - GenericResult: Unfinished Backtranslation
    The program execution was not completely translated back.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - UnprovableResult [Line: 10992]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: overapproximation of large string literal at line 10595. 
Possible FailurePath: 
[L5971]                      static unsigned int vhost_zcopy_mask ;
[L9348]                      static int experimental_zcopytx ;
[L10590-L10593]              static struct file_operations const vhost_net_fops =
     {& __this_module, & noop_llseek, 0, 0, 0, 0, 0, 0, & vhost_net_ioctl, & vhost_net_compat_ioctl,
    0, & vhost_net_open, 0, & vhost_net_release, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0};
[L10594-L10595]              static struct miscdevice vhost_net_misc =
     {238, "vhost-net", & vhost_net_fops, {0, 0}, 0, 0, 0, (unsigned short)0};
[L10620]                     int LDV_IN_INTERRUPT ;
[L11002]                     static int ldv_mutex_cred_guard_mutex ;
[L11109]                     static int ldv_mutex_lock ;
[L11216]                     static int ldv_mutex_mtx ;
[L11323]                     static int ldv_mutex_mutex ;
                 VAL         [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=0, ldv_mutex_cred_guard_mutex=0, ldv_mutex_lock=0, ldv_mutex_mtx=0, ldv_mutex_mutex=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10623]                     struct inode *var_group1 ;
[L10624]                     struct file *var_group2 ;
[L10625]                     unsigned int var_vhost_net_ioctl_27_p1 ;
[L10626]                     unsigned long var_vhost_net_ioctl_27_p2 ;
[L10627]                     unsigned int var_vhost_net_compat_ioctl_28_p1 ;
[L10628]                     unsigned long var_vhost_net_compat_ioctl_28_p2 ;
[L10629]                     int res_vhost_net_open_13 ;
[L10630]                     int ldv_s_vhost_net_fops_file_operations ;
[L10631]                     int tmp ;
[L10632]                     int tmp___0 ;
[L10633]                     int tmp___1 ;
[L10635]                     ldv_s_vhost_net_fops_file_operations = 0
[L10636]                     LDV_IN_INTERRUPT = 1
[L10637]         CALL        ldv_initialize()
[L11433]                     ldv_mutex_cred_guard_mutex = 1
[L11434]                     ldv_mutex_lock = 1
[L11435]                     ldv_mutex_mtx = 1
[L11436]                     ldv_mutex_mutex = 1
                 VAL         [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10637]         RET         ldv_initialize()
[L10638]         FCALL       ldv_handler_precall()
                 VAL         [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10639]         CALL, EXPR  vhost_net_init()
[L10598]                     int tmp ;
                 VAL         [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10600]         COND FALSE  !(experimental_zcopytx != 0)
                 VAL         [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10604]         CALL, EXPR  misc_register(& vhost_net_misc)
[L11595]                     return __VERIFIER_nondet_int();
[L10604]         RET, EXPR   misc_register(& vhost_net_misc)
[L10604]                     tmp = misc_register(& vhost_net_misc)
[L10605]                     return (tmp);
                 VAL         [\result=0, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, tmp=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10639]         RET, EXPR   vhost_net_init()
[L10639]                     tmp = vhost_net_init()
[L10640]         COND FALSE  !(tmp != 0)
                 VAL         [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10682]                     tmp___1 = __VERIFIER_nondet_int()
[L10683]         COND TRUE   tmp___1 != 0 || ldv_s_vhost_net_fops_file_operations != 0
                 VAL         [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___1=-2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10646]                     tmp___0 = __VERIFIER_nondet_int()
[L10648]                     case 0:
[L10661]                     case 1:
[L10669]                     case 2:
                 VAL         [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___0=2, tmp___1=-2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10670]         FCALL       ldv_handler_precall()
                 VAL         [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___0=2, tmp___1=-2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10671]         CALL        vhost_net_ioctl(var_group2, var_vhost_net_ioctl_27_p1, var_vhost_net_ioctl_27_p2)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10521]                     struct vhost_net *n ;
[L10522]                     void *argp ;
[L10523]                     u64 *featurep ;
[L10524]                     struct vhost_vring_file backend ;
[L10525]                     u64 features ;
[L10526]                     int r ;
[L10527]                     unsigned long tmp ;
[L10528]                     long tmp___0 ;
[L10529]                     int tmp___1 ;
[L10530]                     unsigned long tmp___2 ;
[L10531]                     int tmp___3 ;
[L10532]                     long tmp___4 ;
[L10533]                     long tmp___5 ;
[L10535]         EXPR        f->private_data
[L10535]                     n = (struct vhost_net *)f->private_data
[L10536]                     argp = (void *)arg
[L10537]                     featurep = (u64 *)argp
[L10539]                     case 1074310960U:
[L10547]                     case 2148052736U:
[L10555]                     case 1074310912U:
[L10567]                     case 44802U:
[L10568]         CALL        vhost_net_reset_owner(n)
[L10445]                     struct socket *tx_sock ;
[L10446]                     struct socket *rx_sock ;
[L10447]                     long err ;
[L10449]                     tx_sock = 0
[L10450]                     rx_sock = 0
[L10451]         CALL        ldv_mutex_lock_66(& n->dev.mutex)
[L10919]         CALL        ldv_mutex_lock_mutex(ldv_func_arg1)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, lock={18446744073709551615:-17400}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L11361]         COND TRUE   ldv_mutex_mutex == 1
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, lock={18446744073709551615:-17400}, lock={18446744073709551615:-17400}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L11365]                     ldv_mutex_mutex = 2
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={18446744073709551615:-17400}, lock={18446744073709551615:-17400}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10919]         RET         ldv_mutex_lock_mutex(ldv_func_arg1)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, ldv_func_arg1={18446744073709551615:-17400}, ldv_func_arg1={18446744073709551615:-17400}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10920]         FCALL       mutex_lock(ldv_func_arg1)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, ldv_func_arg1={18446744073709551615:-17400}, ldv_func_arg1={18446744073709551615:-17400}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10451]         RET         ldv_mutex_lock_66(& n->dev.mutex)
[L10452]         CALL, EXPR  vhost_dev_check_owner(& n->dev)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, dev={18446744073709551615:-17416}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L6410]                      struct task_struct *tmp ;
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, dev={18446744073709551615:-17416}, dev={18446744073709551615:-17416}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L6412]          CALL, EXPR  get_current()
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L5283]                      struct task_struct *pfo_ret__ ;
[L5286]                      case 1UL:
[L5289]                      case 2UL:
[L5292]                      case 4UL:
[L5295]                      case 8UL:
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L5302]                      return (pfo_ret__);
                 VAL         [\old(ldv_mutex_mutex)=1, \result={18446744073709551617:-5}, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, pfo_ret__={18446744073709551617:-5}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L6412]          RET, EXPR   get_current()
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, dev={18446744073709551615:-17416}, dev={18446744073709551615:-17416}, experimental_zcopytx=0, get_current()={18446744073709551617:-5}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L6412]                      tmp = get_current()
[L6413]          EXPR        dev->mm
[L6413]          EXPR        tmp->mm
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, dev={18446744073709551615:-17416}, dev={18446744073709551615:-17416}, dev->mm={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, tmp={18446744073709551617:-5}, tmp->mm={0:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L6413]          EXPR        (unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L
                 VAL         [(unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L=0, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, dev={18446744073709551615:-17416}, dev={18446744073709551615:-17416}, dev->mm={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, tmp={18446744073709551617:-5}, tmp->mm={0:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L6413]                      return ((unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L);
[L10452]         RET, EXPR   vhost_dev_check_owner(& n->dev)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={18446744073709551615:-17416}, n={18446744073709551615:-17416}, rx_sock={220:0}, tx_sock={217:0}, vhost_dev_check_owner(& n->dev)=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10452]                     err = vhost_dev_check_owner(& n->dev)
[L10453]         COND FALSE  !(err != 0L)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, err=0, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={18446744073709551615:-17416}, n={18446744073709551615:-17416}, rx_sock={220:0}, tx_sock={217:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10457]         CALL        vhost_net_stop(n, & tx_sock, & rx_sock)
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={18446744073709551615:-17416}, rx_sock={220:0}, tx_sock={217:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10183]         CALL        vhost_net_stop_vq(n, (struct vhost_virtqueue *)(& n->vqs) + 1UL)
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={18446744073709551615:-17416}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0, vq={18446744073709551615:0}]
[L10155]                     struct socket *sock ;
[L10156]                     bool __warned ;
[L10157]                     int tmp ;
[L10158]                     int tmp___0 ;
[L10160]         CALL        ldv_mutex_lock_56(& vq->mutex)
[L10839]         CALL        ldv_mutex_lock_mutex(ldv_func_arg1)
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={18446744073709551615:8}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L11361]         COND FALSE  !(ldv_mutex_mutex == 1)
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={18446744073709551615:8}, lock={18446744073709551615:8}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L11363]         CALL        ldv_error()
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10992]                     reach_error()
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 109 procedures, 2239 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 63.2s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 58.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 19376 SdHoareTripleChecker+Valid, 55.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18310 mSDsluCounter, 38056 SdHoareTripleChecker+Invalid, 51.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14005 mSDsCounter, 3944 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14943 IncrementalHoareTripleChecker+Invalid, 18898 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3944 mSolverCounterUnsat, 24051 mSDtfsCounter, 14943 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2965occurred in iteration=5, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 843 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 307 ConstructedInterpolants, 0 QuantifiedInterpolants, 487 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 10/10 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 could not prove your program: unable to determine feasibility of some traces
[2022-11-02 20:44:13,545 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/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
Using bit-precise analysis
Retrying with bit-precise analysis

### Bit-precise run ###
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_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/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_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/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 64bit --witnessprinter.graph.data.programhash f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f
--- 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 20:44:15,778 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:44:15,781 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:44:15,831 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:44:15,837 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:44:15,841 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:44:15,843 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:44:15,850 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:44:15,855 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:44:15,857 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:44:15,859 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:44:15,861 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:44:15,861 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:44:15,866 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:44:15,868 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:44:15,869 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:44:15,871 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:44:15,873 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:44:15,875 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:44:15,878 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:44:15,883 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:44:15,885 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:44:15,886 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:44:15,887 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:44:15,890 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:44:15,890 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:44:15,891 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:44:15,892 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:44:15,892 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:44:15,893 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:44:15,893 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:44:15,894 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:44:15,895 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:44:15,896 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:44:15,897 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:44:15,897 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:44:15,898 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:44:15,898 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:44:15,899 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:44:15,899 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:44:15,900 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:44:15,901 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2022-11-02 20:44:15,931 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-02 20:44:15,931 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:44:15,931 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:44:15,932 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:44:15,932 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:44:15,933 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:44:15,933 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:44:15,934 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-11-02 20:44:15,934 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-11-02 20:44:15,934 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:44:15,934 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-02 20:44:15,935 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:44:15,935 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:44:15,935 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:44:15,935 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-11-02 20:44:15,936 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-11-02 20:44:15,936 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-02 20:44:15,936 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-11-02 20:44:15,936 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-02 20:44:15,936 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:44:15,937 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:44:15,937 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-11-02 20:44:15,937 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-02 20:44:15,937 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:44:15,938 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:44:15,938 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:44:15,938 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:44:15,938 INFO  L138        SettingsManager]:  * Trace refinement strategy=WOLF
[2022-11-02 20:44:15,939 INFO  L138        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2022-11-02 20:44:15,939 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:44:15,939 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:44:15,939 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:44:15,939 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-02 20:44:15,940 INFO  L138        SettingsManager]:  * Logic for external solver=AUFBV
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_8aa45b80-d9c3-4718-961e-387f43089b55/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_8aa45b80-d9c3-4718-961e-387f43089b55/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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f
[2022-11-02 20:44:16,399 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:44:16,421 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:44:16,424 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:44:16,425 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-02 20:44:16,428 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-02 20:44:16,430 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i
[2022-11-02 20:44:16,513 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/data/0537a3900/7f2b56a129434632acff9b747b0f52ea/FLAG6715199c9
[2022-11-02 20:44:17,696 INFO  L306              CDTParser]: Found 1 translation units.
[2022-11-02 20:44:17,697 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i
[2022-11-02 20:44:17,772 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/data/0537a3900/7f2b56a129434632acff9b747b0f52ea/FLAG6715199c9
[2022-11-02 20:44:18,034 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/data/0537a3900/7f2b56a129434632acff9b747b0f52ea
[2022-11-02 20:44:18,036 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:44:18,039 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:44:18,043 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:44:18,043 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:44:18,047 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:44:18,052 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:44:18" (1/1) ...
[2022-11-02 20:44:18,053 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ae5fc9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:18, skipping insertion in model container
[2022-11-02 20:44:18,054 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:44:18" (1/1) ...
[2022-11-02 20:44:18,061 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-02 20:44:18,287 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:44:21,020 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_8aa45b80-d9c3-4718-961e-387f43089b55/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210]
[2022-11-02 20:44:21,144 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:44:21,168 INFO  L200         MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2022-11-02 20:44:21,264 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:44:21,692 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_8aa45b80-d9c3-4718-961e-387f43089b55/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210]
[2022-11-02 20:44:21,707 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:44:21,747 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-02 20:44:22,380 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_8aa45b80-d9c3-4718-961e-387f43089b55/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210]
[2022-11-02 20:44:22,400 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:44:22,511 INFO  L208         MainTranslator]: Completed translation
[2022-11-02 20:44:22,512 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22 WrapperNode
[2022-11-02 20:44:22,512 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:44:22,514 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:44:22,514 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:44:22,514 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:44:22,521 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22" (1/1) ...
[2022-11-02 20:44:22,629 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22" (1/1) ...
[2022-11-02 20:44:22,873 INFO  L138                Inliner]: procedures = 350, calls = 2627, calls flagged for inlining = 143, calls inlined = 135, statements flattened = 6447
[2022-11-02 20:44:22,874 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:44:22,875 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:44:22,875 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:44:22,875 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:44:22,885 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22" (1/1) ...
[2022-11-02 20:44:22,886 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22" (1/1) ...
[2022-11-02 20:44:22,955 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22" (1/1) ...
[2022-11-02 20:44:22,956 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22" (1/1) ...
[2022-11-02 20:44:23,188 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22" (1/1) ...
[2022-11-02 20:44:23,230 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22" (1/1) ...
[2022-11-02 20:44:23,269 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22" (1/1) ...
[2022-11-02 20:44:23,313 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22" (1/1) ...
[2022-11-02 20:44:23,363 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:44:23,365 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:44:23,366 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:44:23,367 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:44:23,368 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22" (1/1) ...
[2022-11-02 20:44:23,396 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:44:23,411 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:44:23,424 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:44:23,486 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:44:23,536 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_add_used_and_signal
[2022-11-02 20:44:23,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_add_used_and_signal
[2022-11-02 20:44:23,536 INFO  L130     BoogieDeclarations]: Found specification of procedure memcpy_toiovecend
[2022-11-02 20:44:23,536 INFO  L138     BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend
[2022-11-02 20:44:23,537 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_tx_net
[2022-11-02 20:44:23,537 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_tx_net
[2022-11-02 20:44:23,537 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE1
[2022-11-02 20:44:23,537 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs
[2022-11-02 20:44:23,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs
[2022-11-02 20:44:23,538 INFO  L130     BoogieDeclarations]: Found specification of procedure kref_sub
[2022-11-02 20:44:23,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure kref_sub
[2022-11-02 20:44:23,538 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE8
[2022-11-02 20:44:23,538 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2022-11-02 20:44:23,539 INFO  L130     BoogieDeclarations]: Found specification of procedure vq_access_ok
[2022-11-02 20:44:23,539 INFO  L138     BoogieDeclarations]: Found implementation of procedure vq_access_ok
[2022-11-02 20:44:23,539 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$
[2022-11-02 20:44:23,539 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE2
[2022-11-02 20:44:23,539 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_flush
[2022-11-02 20:44:23,540 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_flush
[2022-11-02 20:44:23,540 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2022-11-02 20:44:23,540 INFO  L130     BoogieDeclarations]: Found specification of procedure wake_up_process
[2022-11-02 20:44:23,540 INFO  L138     BoogieDeclarations]: Found implementation of procedure wake_up_process
[2022-11-02 20:44:23,540 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_dev_check_owner
[2022-11-02 20:44:23,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_dev_check_owner
[2022-11-02 20:44:23,541 INFO  L130     BoogieDeclarations]: Found specification of procedure log_write
[2022-11-02 20:44:23,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure log_write
[2022-11-02 20:44:23,541 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_tx
[2022-11-02 20:44:23,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_tx
[2022-11-02 20:44:23,542 INFO  L130     BoogieDeclarations]: Found specification of procedure variable_test_bit
[2022-11-02 20:44:23,542 INFO  L138     BoogieDeclarations]: Found implementation of procedure variable_test_bit
[2022-11-02 20:44:23,542 INFO  L130     BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled
[2022-11-02 20:44:23,542 INFO  L138     BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled
[2022-11-02 20:44:23,542 INFO  L130     BoogieDeclarations]: Found specification of procedure get_current
[2022-11-02 20:44:23,543 INFO  L138     BoogieDeclarations]: Found implementation of procedure get_current
[2022-11-02 20:44:23,543 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_vq_reset
[2022-11-02 20:44:23,543 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_vq_reset
[2022-11-02 20:44:23,544 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_malloc
[2022-11-02 20:44:23,544 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_malloc
[2022-11-02 20:44:23,544 INFO  L130     BoogieDeclarations]: Found specification of procedure vq_log_access_ok
[2022-11-02 20:44:23,545 INFO  L138     BoogieDeclarations]: Found implementation of procedure vq_log_access_ok
[2022-11-02 20:44:23,545 INFO  L130     BoogieDeclarations]: Found specification of procedure mutex_unlock
[2022-11-02 20:44:23,545 INFO  L138     BoogieDeclarations]: Found implementation of procedure mutex_unlock
[2022-11-02 20:44:23,545 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_error
[2022-11-02 20:44:23,545 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_error
[2022-11-02 20:44:23,546 INFO  L130     BoogieDeclarations]: Found specification of procedure __put_user_bad
[2022-11-02 20:44:23,546 INFO  L130     BoogieDeclarations]: Found specification of procedure atomic_read
[2022-11-02 20:44:23,546 INFO  L138     BoogieDeclarations]: Found implementation of procedure atomic_read
[2022-11-02 20:44:23,546 INFO  L130     BoogieDeclarations]: Found specification of procedure __vhost_add_used_n
[2022-11-02 20:44:23,547 INFO  L138     BoogieDeclarations]: Found implementation of procedure __vhost_add_used_n
[2022-11-02 20:44:23,547 INFO  L130     BoogieDeclarations]: Found specification of procedure tx_poll_start
[2022-11-02 20:44:23,549 INFO  L138     BoogieDeclarations]: Found implementation of procedure tx_poll_start
[2022-11-02 20:44:23,549 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_queue
[2022-11-02 20:44:23,549 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_queue
[2022-11-02 20:44:23,549 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_rx
[2022-11-02 20:44:23,549 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_rx
[2022-11-02 20:44:23,550 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_tx_kick
[2022-11-02 20:44:23,550 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_tx_kick
[2022-11-02 20:44:23,550 INFO  L130     BoogieDeclarations]: Found specification of procedure mutex_lock
[2022-11-02 20:44:23,550 INFO  L138     BoogieDeclarations]: Found implementation of procedure mutex_lock
[2022-11-02 20:44:23,551 INFO  L130     BoogieDeclarations]: Found specification of procedure spinlock_check
[2022-11-02 20:44:23,551 INFO  L138     BoogieDeclarations]: Found implementation of procedure spinlock_check
[2022-11-02 20:44:23,552 INFO  L130     BoogieDeclarations]: Found specification of procedure ERR_PTR
[2022-11-02 20:44:23,552 INFO  L138     BoogieDeclarations]: Found implementation of procedure ERR_PTR
[2022-11-02 20:44:23,552 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_fget
[2022-11-02 20:44:23,552 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_fget
[2022-11-02 20:44:23,552 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_init
[2022-11-02 20:44:23,553 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_init
[2022-11-02 20:44:23,554 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-02 20:44:23,554 INFO  L130     BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD
[2022-11-02 20:44:23,554 INFO  L138     BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD
[2022-11-02 20:44:23,554 INFO  L130     BoogieDeclarations]: Found specification of procedure vq_memory_access_ok
[2022-11-02 20:44:23,554 INFO  L138     BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok
[2022-11-02 20:44:23,555 INFO  L130     BoogieDeclarations]: Found specification of procedure move_iovec_hdr
[2022-11-02 20:44:23,555 INFO  L138     BoogieDeclarations]: Found implementation of procedure move_iovec_hdr
[2022-11-02 20:44:23,555 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2022-11-02 20:44:23,555 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore
[2022-11-02 20:44:23,555 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore
[2022-11-02 20:44:23,556 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_queue
[2022-11-02 20:44:23,556 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_queue
[2022-11-02 20:44:23,556 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_stop
[2022-11-02 20:44:23,556 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_stop
[2022-11-02 20:44:23,556 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE8
[2022-11-02 20:44:23,557 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE1
[2022-11-02 20:44:23,558 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE2
[2022-11-02 20:44:23,558 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-02 20:44:23,558 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2022-11-02 20:44:23,558 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2022-11-02 20:44:23,559 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup
[2022-11-02 20:44:23,559 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup
[2022-11-02 20:44:23,560 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_zerocopy_callback
[2022-11-02 20:44:23,560 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_callback
[2022-11-02 20:44:23,560 INFO  L130     BoogieDeclarations]: Found specification of procedure might_fault
[2022-11-02 20:44:23,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure might_fault
[2022-11-02 20:44:23,562 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2
[2022-11-02 20:44:23,562 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_flush_vq
[2022-11-02 20:44:23,562 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_flush_vq
[2022-11-02 20:44:23,562 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-11-02 20:44:23,562 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4
[2022-11-02 20:44:23,562 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_stop_vq
[2022-11-02 20:44:23,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_stop_vq
[2022-11-02 20:44:23,563 INFO  L130     BoogieDeclarations]: Found specification of procedure __mutex_init
[2022-11-02 20:44:23,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure __mutex_init
[2022-11-02 20:44:23,563 INFO  L130     BoogieDeclarations]: Found specification of procedure kmalloc
[2022-11-02 20:44:23,563 INFO  L138     BoogieDeclarations]: Found implementation of procedure kmalloc
[2022-11-02 20:44:23,564 INFO  L130     BoogieDeclarations]: Found specification of procedure fput
[2022-11-02 20:44:23,564 INFO  L138     BoogieDeclarations]: Found implementation of procedure fput
[2022-11-02 20:44:23,564 INFO  L130     BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave
[2022-11-02 20:44:23,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave
[2022-11-02 20:44:23,565 INFO  L130     BoogieDeclarations]: Found specification of procedure next_desc
[2022-11-02 20:44:23,565 INFO  L138     BoogieDeclarations]: Found implementation of procedure next_desc
[2022-11-02 20:44:23,566 INFO  L130     BoogieDeclarations]: Found specification of procedure iov_length
[2022-11-02 20:44:23,567 INFO  L138     BoogieDeclarations]: Found implementation of procedure iov_length
[2022-11-02 20:44:23,569 INFO  L130     BoogieDeclarations]: Found specification of procedure tx_poll_stop
[2022-11-02 20:44:23,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure tx_poll_stop
[2022-11-02 20:44:23,570 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_handler_precall
[2022-11-02 20:44:23,570 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_handler_precall
[2022-11-02 20:44:23,571 INFO  L130     BoogieDeclarations]: Found specification of procedure schedule
[2022-11-02 20:44:23,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure schedule
[2022-11-02 20:44:23,573 INFO  L130     BoogieDeclarations]: Found specification of procedure _copy_from_user
[2022-11-02 20:44:23,573 INFO  L138     BoogieDeclarations]: Found implementation of procedure _copy_from_user
[2022-11-02 20:44:23,573 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_has_feature
[2022-11-02 20:44:23,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_has_feature
[2022-11-02 20:44:23,579 INFO  L130     BoogieDeclarations]: Found specification of procedure list_empty
[2022-11-02 20:44:23,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure list_empty
[2022-11-02 20:44:23,580 INFO  L130     BoogieDeclarations]: Found specification of procedure __rcu_read_lock
[2022-11-02 20:44:23,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure __rcu_read_lock
[2022-11-02 20:44:23,580 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_init
[2022-11-02 20:44:23,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_init
[2022-11-02 20:44:23,580 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget
[2022-11-02 20:44:23,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget
[2022-11-02 20:44:23,581 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_flush
[2022-11-02 20:44:23,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_flush
[2022-11-02 20:44:23,581 INFO  L130     BoogieDeclarations]: Found specification of procedure rcu_read_lock_held
[2022-11-02 20:44:23,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held
[2022-11-02 20:44:23,581 INFO  L130     BoogieDeclarations]: Found specification of procedure kfree
[2022-11-02 20:44:23,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure kfree
[2022-11-02 20:44:23,582 INFO  L130     BoogieDeclarations]: Found specification of procedure __get_user_bad
[2022-11-02 20:44:23,582 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_ubuf_put
[2022-11-02 20:44:23,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put
[2022-11-02 20:44:23,582 INFO  L130     BoogieDeclarations]: Found specification of procedure copy_to_user
[2022-11-02 20:44:23,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure copy_to_user
[2022-11-02 20:44:23,583 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex
[2022-11-02 20:44:23,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex
[2022-11-02 20:44:23,583 INFO  L130     BoogieDeclarations]: Found specification of procedure __rcu_read_unlock
[2022-11-02 20:44:23,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock
[2022-11-02 20:44:23,583 INFO  L130     BoogieDeclarations]: Found specification of procedure translate_desc
[2022-11-02 20:44:23,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure translate_desc
[2022-11-02 20:44:23,584 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_ctx_put
[2022-11-02 20:44:23,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put
[2022-11-02 20:44:23,584 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_ioctl
[2022-11-02 20:44:23,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_ioctl
[2022-11-02 20:44:23,584 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_disable_vq
[2022-11-02 20:44:23,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_disable_vq
[2022-11-02 20:44:23,585 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4
[2022-11-02 20:44:23,585 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2
[2022-11-02 20:44:23,585 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1
[2022-11-02 20:44:23,585 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8
[2022-11-02 20:44:23,585 INFO  L130     BoogieDeclarations]: Found specification of procedure mmput
[2022-11-02 20:44:23,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure mmput
[2022-11-02 20:44:23,586 INFO  L130     BoogieDeclarations]: Found specification of procedure kref_put
[2022-11-02 20:44:23,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure kref_put
[2022-11-02 20:44:23,586 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_unlock_irq
[2022-11-02 20:44:23,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_unlock_irq
[2022-11-02 20:44:23,587 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv__builtin_expect
[2022-11-02 20:44:23,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect
[2022-11-02 20:44:23,587 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_ubuf_put_and_wait
[2022-11-02 20:44:23,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put_and_wait
[2022-11-02 20:44:23,587 INFO  L130     BoogieDeclarations]: Found specification of procedure copy_user_generic
[2022-11-02 20:44:23,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure copy_user_generic
[2022-11-02 20:44:23,588 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-11-02 20:44:23,588 INFO  L130     BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle
[2022-11-02 20:44:23,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle
[2022-11-02 20:44:23,588 INFO  L130     BoogieDeclarations]: Found specification of procedure copy_from_user
[2022-11-02 20:44:23,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure copy_from_user
[2022-11-02 20:44:23,589 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_get_vq_desc
[2022-11-02 20:44:23,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_get_vq_desc
[2022-11-02 20:44:23,589 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:44:23,589 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_signal
[2022-11-02 20:44:23,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_signal
[2022-11-02 20:44:23,589 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_enable_notify
[2022-11-02 20:44:23,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_enable_notify
[2022-11-02 20:44:23,590 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_stop
[2022-11-02 20:44:23,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_stop
[2022-11-02 20:44:23,590 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2022-11-02 20:44:23,590 INFO  L130     BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious
[2022-11-02 20:44:23,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious
[2022-11-02 20:44:23,591 INFO  L130     BoogieDeclarations]: Found specification of procedure __bad_percpu_size
[2022-11-02 20:44:23,591 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8
[2022-11-02 20:44:23,591 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2
[2022-11-02 20:44:23,591 INFO  L130     BoogieDeclarations]: Found specification of procedure kthread_stop
[2022-11-02 20:44:23,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure kthread_stop
[2022-11-02 20:44:23,591 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID
[2022-11-02 20:44:23,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID
[2022-11-02 20:44:23,592 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4
[2022-11-02 20:44:23,592 INFO  L130     BoogieDeclarations]: Found specification of procedure memory_access_ok
[2022-11-02 20:44:23,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure memory_access_ok
[2022-11-02 20:44:23,592 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_lock_irq
[2022-11-02 20:44:23,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_lock_irq
[2022-11-02 20:44:23,593 INFO  L130     BoogieDeclarations]: Found specification of procedure current_thread_info
[2022-11-02 20:44:23,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure current_thread_info
[2022-11-02 20:44:23,593 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_seq_done
[2022-11-02 20:44:23,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done
[2022-11-02 20:44:23,593 INFO  L130     BoogieDeclarations]: Found specification of procedure __wake_up
[2022-11-02 20:44:23,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure __wake_up
[2022-11-02 20:44:23,594 INFO  L130     BoogieDeclarations]: Found specification of procedure PTR_ERR
[2022-11-02 20:44:23,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure PTR_ERR
[2022-11-02 20:44:23,594 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_disable_notify
[2022-11-02 20:44:23,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_disable_notify
[2022-11-02 20:44:23,594 INFO  L130     BoogieDeclarations]: Found specification of procedure prepare_to_wait
[2022-11-02 20:44:23,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure prepare_to_wait
[2022-11-02 20:44:23,595 INFO  L130     BoogieDeclarations]: Found specification of procedure warn_slowpath_null
[2022-11-02 20:44:23,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure warn_slowpath_null
[2022-11-02 20:44:23,595 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_update_used_flags
[2022-11-02 20:44:23,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags
[2022-11-02 20:44:23,596 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_discard_vq_desc
[2022-11-02 20:44:23,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_discard_vq_desc
[2022-11-02 20:44:23,596 INFO  L130     BoogieDeclarations]: Found specification of procedure lock_is_held
[2022-11-02 20:44:23,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure lock_is_held
[2022-11-02 20:44:23,596 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_flush
[2022-11-02 20:44:23,596 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_flush
[2022-11-02 20:44:23,597 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex
[2022-11-02 20:44:23,597 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex
[2022-11-02 20:44:23,597 INFO  L130     BoogieDeclarations]: Found specification of procedure log_access_ok
[2022-11-02 20:44:23,597 INFO  L138     BoogieDeclarations]: Found implementation of procedure log_access_ok
[2022-11-02 20:44:23,597 INFO  L130     BoogieDeclarations]: Found specification of procedure __init_waitqueue_head
[2022-11-02 20:44:23,597 INFO  L138     BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head
[2022-11-02 20:44:23,598 INFO  L130     BoogieDeclarations]: Found specification of procedure set_bit
[2022-11-02 20:44:23,598 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_bit
[2022-11-02 20:44:23,598 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_signal
[2022-11-02 20:44:23,598 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_signal
[2022-11-02 20:44:23,598 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1
[2022-11-02 20:44:23,598 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_zerocopy_signal_used
[2022-11-02 20:44:23,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_signal_used
[2022-11-02 20:44:23,599 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_start
[2022-11-02 20:44:23,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_start
[2022-11-02 20:44:23,599 INFO  L130     BoogieDeclarations]: Found specification of procedure finish_wait
[2022-11-02 20:44:23,599 INFO  L138     BoogieDeclarations]: Found implementation of procedure finish_wait
[2022-11-02 20:44:23,599 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:44:23,601 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:44:23,604 INFO  L130     BoogieDeclarations]: Found specification of procedure IS_ERR
[2022-11-02 20:44:23,605 INFO  L138     BoogieDeclarations]: Found implementation of procedure IS_ERR
[2022-11-02 20:44:24,692 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-02 20:44:24,696 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:44:50,927 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5857: SUMMARY for call __copy_to_user_#t~ret139#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_to_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null
[2022-11-02 20:44:50,927 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5857-1: __copy_to_user_~tmp___1~3#1 := __copy_to_user_#t~ret139#1;havoc __copy_to_user_#t~ret139#1;
[2022-11-02 20:44:50,928 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5845: SUMMARY for call __copy_to_user_#t~ret138#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_to_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null
[2022-11-02 20:44:50,928 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5845-1: __copy_to_user_~tmp___0~6#1 := __copy_to_user_#t~ret138#1;havoc __copy_to_user_#t~ret138#1;
[2022-11-02 20:44:50,928 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume __copy_to_user_#t~switch137#1;
[2022-11-02 20:44:50,928 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume !__copy_to_user_#t~switch137#1;
[2022-11-02 20:44:50,928 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume 0bv64 != __copy_to_user_~tmp___1~3#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:44:50,929 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume !(0bv64 != __copy_to_user_~tmp___1~3#1);__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:44:50,929 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume __copy_to_user_#t~switch137#1;
[2022-11-02 20:44:50,929 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := true;
[2022-11-02 20:44:50,929 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5825: havoc __copy_to_user_#t~switch137#1;
[2022-11-02 20:44:50,929 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume 0bv64 != __copy_to_user_~tmp___0~6#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:44:50,929 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume !(0bv64 != __copy_to_user_~tmp___0~6#1);__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:44:50,930 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume __copy_to_user_#t~switch137#1;
[2022-11-02 20:44:50,930 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 16bv32 == __copy_to_user_~size#1;
[2022-11-02 20:44:50,930 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:44:50,930 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 10bv32 == __copy_to_user_~size#1;
[2022-11-02 20:44:50,930 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5867: SUMMARY for call __copy_to_user_#t~ret140#1 := copy_user_generic(__copy_to_user_~dst#1.base, __copy_to_user_~dst#1.offset, __copy_to_user_~src#1.base, __copy_to_user_~src#1.offset, __copy_to_user_~size#1); srcloc: null
[2022-11-02 20:44:50,931 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:44:50,931 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 8bv32 == __copy_to_user_~size#1;
[2022-11-02 20:44:50,931 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5867-1: __copy_to_user_~tmp___2~4#1 := __copy_to_user_#t~ret140#1;havoc __copy_to_user_#t~ret140#1;__copy_to_user_#res#1 := __copy_to_user_~tmp___2~4#1[32:0];
[2022-11-02 20:44:50,931 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:44:50,931 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 4bv32 == __copy_to_user_~size#1;
[2022-11-02 20:44:50,932 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1;
[2022-11-02 20:44:50,932 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 2bv32 == __copy_to_user_~size#1;
[2022-11-02 20:45:07,899 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5785: SUMMARY for call __copy_from_user_#t~ret133#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~1#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null
[2022-11-02 20:45:07,900 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5785-1: __copy_from_user_~tmp___0~5#1 := __copy_from_user_#t~ret133#1;havoc __copy_from_user_#t~ret133#1;
[2022-11-02 20:45:07,900 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume 0bv64 != __copy_from_user_~tmp___0~5#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:45:07,900 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume !(0bv64 != __copy_from_user_~tmp___0~5#1);__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:45:07,900 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5760: havoc __copy_from_user_#t~switch132#1;
[2022-11-02 20:45:07,900 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume __copy_from_user_#t~switch132#1;
[2022-11-02 20:45:07,900 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := true;
[2022-11-02 20:45:07,901 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5798: SUMMARY for call __copy_from_user_#t~ret134#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~1#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null
[2022-11-02 20:45:07,901 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5798-1: __copy_from_user_~tmp___1~2#1 := __copy_from_user_#t~ret134#1;havoc __copy_from_user_#t~ret134#1;
[2022-11-02 20:45:07,901 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume 0bv64 != __copy_from_user_~tmp___1~2#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:45:07,901 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume !(0bv64 != __copy_from_user_~tmp___1~2#1);__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:45:07,901 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:45:07,901 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 4bv32 == __copy_from_user_~size#1;
[2022-11-02 20:45:07,901 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:45:07,901 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 8bv32 == __copy_from_user_~size#1;
[2022-11-02 20:45:07,902 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 2bv32 == __copy_from_user_~size#1;
[2022-11-02 20:45:07,902 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:45:07,902 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume __copy_from_user_#t~switch132#1;
[2022-11-02 20:45:07,902 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume !__copy_from_user_#t~switch132#1;
[2022-11-02 20:45:07,902 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5808-1: __copy_from_user_~tmp___2~3#1 := __copy_from_user_#t~ret135#1;havoc __copy_from_user_#t~ret135#1;__copy_from_user_#res#1 := __copy_from_user_~tmp___2~3#1[32:0];
[2022-11-02 20:45:07,902 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5808: SUMMARY for call __copy_from_user_#t~ret135#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null
[2022-11-02 20:45:07,902 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1;
[2022-11-02 20:45:07,902 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 10bv32 == __copy_from_user_~size#1;
[2022-11-02 20:45:07,903 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume __copy_from_user_#t~switch132#1;
[2022-11-02 20:45:07,903 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 16bv32 == __copy_from_user_~size#1;
[2022-11-02 20:45:17,807 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-02 20:45:17,827 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:45:17,827 INFO  L300             CfgBuilder]: Removed 0 assume(true) statements.
[2022-11-02 20:45:17,831 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:17 BoogieIcfgContainer
[2022-11-02 20:45:17,832 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:45:17,834 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:45:17,834 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:45:17,837 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:45:17,837 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:44:18" (1/3) ...
[2022-11-02 20:45:17,838 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505cdf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:45:17, skipping insertion in model container
[2022-11-02 20:45:17,838 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:22" (2/3) ...
[2022-11-02 20:45:17,838 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505cdf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:45:17, skipping insertion in model container
[2022-11-02 20:45:17,838 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:17" (3/3) ...
[2022-11-02 20:45:17,840 INFO  L112   eAbstractionObserver]: Analyzing ICFG main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i
[2022-11-02 20:45:17,858 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:45:17,858 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 20:45:17,941 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:45:17,948 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;@4e3d4841, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:45:17,948 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 20:45:17,959 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2218 states, 1540 states have (on average 1.346103896103896) internal successors, (2073), 1586 states have internal predecessors, (2073), 572 states have call successors, (572), 104 states have call predecessors, (572), 104 states have return successors, (572), 567 states have call predecessors, (572), 572 states have call successors, (572)
[2022-11-02 20:45:17,967 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:45:17,967 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:45:17,968 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:45:17,969 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:45:17,974 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:45:17,974 INFO  L85        PathProgramCache]: Analyzing trace with hash -801145376, now seen corresponding path program 1 times
[2022-11-02 20:45:17,993 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:45:17,993 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112396623]
[2022-11-02 20:45:17,994 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:45:17,994 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:45:17,994 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:45:17,998 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:45:18,005 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-11-02 20:45:18,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:45:18,831 INFO  L263         TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:45:18,836 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:45:19,034 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 20:45:19,034 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:45:19,035 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:45:19,035 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112396623]
[2022-11-02 20:45:19,036 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112396623] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:45:19,036 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:45:19,036 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:45:19,037 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618910979]
[2022-11-02 20:45:19,038 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:45:19,041 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:45:19,042 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:45:19,067 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:45:19,068 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:19,075 INFO  L87              Difference]: Start difference. First operand  has 2218 states, 1540 states have (on average 1.346103896103896) internal successors, (2073), 1586 states have internal predecessors, (2073), 572 states have call successors, (572), 104 states have call predecessors, (572), 104 states have return successors, (572), 567 states have call predecessors, (572), 572 states have call successors, (572) Second operand  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:45:19,516 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:45:19,517 INFO  L93              Difference]: Finished difference Result 4422 states and 6498 transitions.
[2022-11-02 20:45:19,519 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:45:19,520 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16
[2022-11-02 20:45:19,520 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:45:19,562 INFO  L225             Difference]: With dead ends: 4422
[2022-11-02 20:45:19,563 INFO  L226             Difference]: Without dead ends: 2207
[2022-11-02 20:45:19,584 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:19,590 INFO  L413           NwaCegarLoop]: 3205 mSDtfsCounter, 3193 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3193 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:45:19,591 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3193 Valid, 3205 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 20:45:19,613 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2207 states.
[2022-11-02 20:45:19,839 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2207.
[2022-11-02 20:45:19,845 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2207 states, 1532 states have (on average 1.3426892950391645) internal successors, (2057), 1575 states have internal predecessors, (2057), 571 states have call successors, (571), 104 states have call predecessors, (571), 103 states have return successors, (566), 561 states have call predecessors, (566), 566 states have call successors, (566)
[2022-11-02 20:45:19,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3194 transitions.
[2022-11-02 20:45:19,870 INFO  L78                 Accepts]: Start accepts. Automaton has 2207 states and 3194 transitions. Word has length 16
[2022-11-02 20:45:19,871 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:45:19,871 INFO  L495      AbstractCegarLoop]: Abstraction has 2207 states and 3194 transitions.
[2022-11-02 20:45:19,872 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:45:19,872 INFO  L276                IsEmpty]: Start isEmpty. Operand 2207 states and 3194 transitions.
[2022-11-02 20:45:19,873 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-11-02 20:45:19,873 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:45:19,874 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:45:19,897 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:45:20,096 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:45:20,097 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:45:20,097 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:45:20,097 INFO  L85        PathProgramCache]: Analyzing trace with hash 933280137, now seen corresponding path program 1 times
[2022-11-02 20:45:20,098 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:45:20,098 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857703258]
[2022-11-02 20:45:20,098 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:45:20,098 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:45:20,099 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:45:20,101 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:45:20,104 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2022-11-02 20:45:20,869 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:45:20,880 INFO  L263         TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:45:20,881 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:45:21,046 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 20:45:21,046 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:45:21,046 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:45:21,046 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857703258]
[2022-11-02 20:45:21,047 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [857703258] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:45:21,047 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:45:21,047 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:45:21,047 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703445283]
[2022-11-02 20:45:21,047 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:45:21,048 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:45:21,049 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:45:21,049 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:45:21,049 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:21,050 INFO  L87              Difference]: Start difference. First operand 2207 states and 3194 transitions. Second operand  has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:45:21,302 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:45:21,302 INFO  L93              Difference]: Finished difference Result 2209 states and 3195 transitions.
[2022-11-02 20:45:21,303 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:45:21,303 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2022-11-02 20:45:21,303 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:45:21,317 INFO  L225             Difference]: With dead ends: 2209
[2022-11-02 20:45:21,317 INFO  L226             Difference]: Without dead ends: 2206
[2022-11-02 20:45:21,319 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:21,321 INFO  L413           NwaCegarLoop]: 3191 mSDtfsCounter, 3178 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3178 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:45:21,322 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3178 Valid, 3191 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 20:45:21,328 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2206 states.
[2022-11-02 20:45:21,527 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2206.
[2022-11-02 20:45:21,532 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2206 states, 1532 states have (on average 1.3420365535248042) internal successors, (2056), 1574 states have internal predecessors, (2056), 570 states have call successors, (570), 104 states have call predecessors, (570), 103 states have return successors, (566), 561 states have call predecessors, (566), 566 states have call successors, (566)
[2022-11-02 20:45:21,549 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 3192 transitions.
[2022-11-02 20:45:21,550 INFO  L78                 Accepts]: Start accepts. Automaton has 2206 states and 3192 transitions. Word has length 17
[2022-11-02 20:45:21,550 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:45:21,550 INFO  L495      AbstractCegarLoop]: Abstraction has 2206 states and 3192 transitions.
[2022-11-02 20:45:21,550 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:45:21,551 INFO  L276                IsEmpty]: Start isEmpty. Operand 2206 states and 3192 transitions.
[2022-11-02 20:45:21,551 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-11-02 20:45:21,551 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:45:21,551 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:45:21,568 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2022-11-02 20:45:21,766 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:45:21,767 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:45:21,767 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:45:21,767 INFO  L85        PathProgramCache]: Analyzing trace with hash -1134098941, now seen corresponding path program 1 times
[2022-11-02 20:45:21,769 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:45:21,769 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587808373]
[2022-11-02 20:45:21,769 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:45:21,769 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:45:21,770 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:45:21,774 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:45:21,836 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2022-11-02 20:45:22,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:45:22,496 INFO  L263         TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:45:22,497 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:45:22,693 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 20:45:22,693 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:45:22,693 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:45:22,693 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587808373]
[2022-11-02 20:45:22,694 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [587808373] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:45:22,694 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:45:22,694 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:45:22,694 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225192711]
[2022-11-02 20:45:22,694 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:45:22,695 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:45:22,695 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:45:22,695 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:45:22,696 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:22,696 INFO  L87              Difference]: Start difference. First operand 2206 states and 3192 transitions. Second operand  has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:45:22,946 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:45:22,947 INFO  L93              Difference]: Finished difference Result 2208 states and 3193 transitions.
[2022-11-02 20:45:22,947 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:45:22,947 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18
[2022-11-02 20:45:22,948 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:45:22,961 INFO  L225             Difference]: With dead ends: 2208
[2022-11-02 20:45:22,962 INFO  L226             Difference]: Without dead ends: 2205
[2022-11-02 20:45:22,964 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:22,965 INFO  L413           NwaCegarLoop]: 3189 mSDtfsCounter, 3175 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3175 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:45:22,966 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3175 Valid, 3189 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 20:45:22,970 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2205 states.
[2022-11-02 20:45:23,180 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2205.
[2022-11-02 20:45:23,184 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2205 states, 1532 states have (on average 1.3413838120104438) internal successors, (2055), 1573 states have internal predecessors, (2055), 569 states have call successors, (569), 104 states have call predecessors, (569), 103 states have return successors, (566), 561 states have call predecessors, (566), 566 states have call successors, (566)
[2022-11-02 20:45:23,200 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3190 transitions.
[2022-11-02 20:45:23,201 INFO  L78                 Accepts]: Start accepts. Automaton has 2205 states and 3190 transitions. Word has length 18
[2022-11-02 20:45:23,201 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:45:23,201 INFO  L495      AbstractCegarLoop]: Abstraction has 2205 states and 3190 transitions.
[2022-11-02 20:45:23,202 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:45:23,202 INFO  L276                IsEmpty]: Start isEmpty. Operand 2205 states and 3190 transitions.
[2022-11-02 20:45:23,202 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-11-02 20:45:23,203 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:45:23,203 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:45:23,232 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2022-11-02 20:45:23,418 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:45:23,419 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:45:23,419 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:45:23,419 INFO  L85        PathProgramCache]: Analyzing trace with hash -798336052, now seen corresponding path program 1 times
[2022-11-02 20:45:23,420 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:45:23,421 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472531989]
[2022-11-02 20:45:23,421 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:45:23,421 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:45:23,421 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:45:23,423 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:45:23,438 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2022-11-02 20:45:24,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:45:24,112 INFO  L263         TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:45:24,113 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:45:24,312 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 20:45:24,312 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:45:24,312 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:45:24,312 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472531989]
[2022-11-02 20:45:24,313 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472531989] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:45:24,313 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:45:24,313 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:45:24,313 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382874474]
[2022-11-02 20:45:24,313 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:45:24,314 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:45:24,314 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:45:24,314 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:45:24,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:24,314 INFO  L87              Difference]: Start difference. First operand 2205 states and 3190 transitions. Second operand  has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:45:24,683 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:45:24,684 INFO  L93              Difference]: Finished difference Result 4994 states and 7160 transitions.
[2022-11-02 20:45:24,684 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:45:24,684 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19
[2022-11-02 20:45:24,685 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:45:24,701 INFO  L225             Difference]: With dead ends: 4994
[2022-11-02 20:45:24,702 INFO  L226             Difference]: Without dead ends: 2791
[2022-11-02 20:45:24,713 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:24,714 INFO  L413           NwaCegarLoop]: 3540 mSDtfsCounter, 1201 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 6266 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:45:24,714 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 6266 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 20:45:24,720 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2791 states.
[2022-11-02 20:45:24,968 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2788.
[2022-11-02 20:45:24,973 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2788 states, 1930 states have (on average 1.3233160621761657) internal successors, (2554), 1990 states have internal predecessors, (2554), 688 states have call successors, (688), 172 states have call predecessors, (688), 169 states have return successors, (693), 667 states have call predecessors, (693), 679 states have call successors, (693)
[2022-11-02 20:45:24,989 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 3935 transitions.
[2022-11-02 20:45:24,990 INFO  L78                 Accepts]: Start accepts. Automaton has 2788 states and 3935 transitions. Word has length 19
[2022-11-02 20:45:24,991 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:45:24,991 INFO  L495      AbstractCegarLoop]: Abstraction has 2788 states and 3935 transitions.
[2022-11-02 20:45:24,991 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:45:24,991 INFO  L276                IsEmpty]: Start isEmpty. Operand 2788 states and 3935 transitions.
[2022-11-02 20:45:24,994 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2022-11-02 20:45:24,994 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:45:24,995 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:45:25,015 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2022-11-02 20:45:25,210 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:45:25,211 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:45:25,211 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:45:25,211 INFO  L85        PathProgramCache]: Analyzing trace with hash -587069341, now seen corresponding path program 1 times
[2022-11-02 20:45:25,212 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:45:25,213 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057660774]
[2022-11-02 20:45:25,213 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:45:25,213 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:45:25,213 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:45:25,214 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:45:25,222 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2022-11-02 20:45:25,997 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:45:26,016 INFO  L263         TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:45:26,018 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:45:26,184 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:45:26,185 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:45:26,185 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:45:26,185 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057660774]
[2022-11-02 20:45:26,185 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057660774] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:45:26,186 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:45:26,186 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:45:26,186 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227109143]
[2022-11-02 20:45:26,186 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:45:26,187 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:45:26,187 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:45:26,187 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:45:26,187 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:26,188 INFO  L87              Difference]: Start difference. First operand 2788 states and 3935 transitions. Second operand  has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2022-11-02 20:45:26,520 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:45:26,520 INFO  L93              Difference]: Finished difference Result 5585 states and 7888 transitions.
[2022-11-02 20:45:26,521 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:45:26,521 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 55
[2022-11-02 20:45:26,521 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:45:26,536 INFO  L225             Difference]: With dead ends: 5585
[2022-11-02 20:45:26,536 INFO  L226             Difference]: Without dead ends: 2808
[2022-11-02 20:45:26,547 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:26,548 INFO  L413           NwaCegarLoop]: 3172 mSDtfsCounter, 43 mSDsluCounter, 3118 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 6290 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:45:26,549 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 6290 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 20:45:26,554 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2808 states.
[2022-11-02 20:45:26,766 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 2808.
[2022-11-02 20:45:26,771 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2808 states, 1946 states have (on average 1.3232271325796505) internal successors, (2575), 2006 states have internal predecessors, (2575), 692 states have call successors, (692), 172 states have call predecessors, (692), 169 states have return successors, (697), 671 states have call predecessors, (697), 683 states have call successors, (697)
[2022-11-02 20:45:26,790 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2808 states to 2808 states and 3964 transitions.
[2022-11-02 20:45:26,791 INFO  L78                 Accepts]: Start accepts. Automaton has 2808 states and 3964 transitions. Word has length 55
[2022-11-02 20:45:26,792 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:45:26,792 INFO  L495      AbstractCegarLoop]: Abstraction has 2808 states and 3964 transitions.
[2022-11-02 20:45:26,792 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2022-11-02 20:45:26,793 INFO  L276                IsEmpty]: Start isEmpty. Operand 2808 states and 3964 transitions.
[2022-11-02 20:45:26,801 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2022-11-02 20:45:26,801 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:45:26,802 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:45:26,827 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2022-11-02 20:45:27,014 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:45:27,015 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:45:27,015 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:45:27,015 INFO  L85        PathProgramCache]: Analyzing trace with hash -1997599171, now seen corresponding path program 1 times
[2022-11-02 20:45:27,016 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:45:27,016 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102177582]
[2022-11-02 20:45:27,016 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:45:27,017 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:45:27,017 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:45:27,018 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:45:27,046 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2022-11-02 20:45:27,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:45:27,843 INFO  L263         TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:45:27,847 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:45:27,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-02 20:45:27,883 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:45:27,883 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:45:27,883 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102177582]
[2022-11-02 20:45:27,883 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [102177582] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:45:27,884 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:45:27,884 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:45:27,884 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766486868]
[2022-11-02 20:45:27,884 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:45:27,884 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:45:27,884 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:45:27,885 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:45:27,885 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:27,885 INFO  L87              Difference]: Start difference. First operand 2808 states and 3964 transitions. Second operand  has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2022-11-02 20:45:28,212 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:45:28,213 INFO  L93              Difference]: Finished difference Result 5607 states and 7983 transitions.
[2022-11-02 20:45:28,213 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:45:28,213 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 59
[2022-11-02 20:45:28,214 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:45:28,231 INFO  L225             Difference]: With dead ends: 5607
[2022-11-02 20:45:28,231 INFO  L226             Difference]: Without dead ends: 2810
[2022-11-02 20:45:28,248 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:28,250 INFO  L413           NwaCegarLoop]: 3167 mSDtfsCounter, 0 mSDsluCounter, 3160 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6327 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:45:28,250 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6327 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:45:28,255 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2810 states.
[2022-11-02 20:45:28,466 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2808.
[2022-11-02 20:45:28,488 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2808 states, 1946 states have (on average 1.3201438848920863) internal successors, (2569), 2006 states have internal predecessors, (2569), 692 states have call successors, (692), 172 states have call predecessors, (692), 169 states have return successors, (697), 671 states have call predecessors, (697), 683 states have call successors, (697)
[2022-11-02 20:45:28,504 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2808 states to 2808 states and 3958 transitions.
[2022-11-02 20:45:28,505 INFO  L78                 Accepts]: Start accepts. Automaton has 2808 states and 3958 transitions. Word has length 59
[2022-11-02 20:45:28,507 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:45:28,508 INFO  L495      AbstractCegarLoop]: Abstraction has 2808 states and 3958 transitions.
[2022-11-02 20:45:28,509 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2022-11-02 20:45:28,509 INFO  L276                IsEmpty]: Start isEmpty. Operand 2808 states and 3958 transitions.
[2022-11-02 20:45:28,512 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2022-11-02 20:45:28,512 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:45:28,512 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:45:28,536 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2022-11-02 20:45:28,726 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:45:28,726 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:45:28,727 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:45:28,727 INFO  L85        PathProgramCache]: Analyzing trace with hash 1160460849, now seen corresponding path program 1 times
[2022-11-02 20:45:28,728 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:45:28,728 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145033439]
[2022-11-02 20:45:28,728 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:45:28,729 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:45:28,729 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:45:28,733 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:45:28,778 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2022-11-02 20:45:29,488 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:45:29,504 INFO  L263         TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:45:29,507 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:45:29,840 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-02 20:45:29,840 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:45:29,840 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:45:29,840 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145033439]
[2022-11-02 20:45:29,840 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [145033439] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:45:29,841 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:45:29,841 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:45:29,841 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018463769]
[2022-11-02 20:45:29,841 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:45:29,841 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 20:45:29,841 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:45:29,842 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 20:45:29,842 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:29,842 INFO  L87              Difference]: Start difference. First operand 2808 states and 3958 transitions. Second operand  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2022-11-02 20:45:30,144 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:45:30,145 INFO  L93              Difference]: Finished difference Result 4622 states and 6465 transitions.
[2022-11-02 20:45:30,145 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 20:45:30,145 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65
[2022-11-02 20:45:30,146 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:45:30,161 INFO  L225             Difference]: With dead ends: 4622
[2022-11-02 20:45:30,161 INFO  L226             Difference]: Without dead ends: 2330
[2022-11-02 20:45:30,173 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 20:45:30,175 INFO  L413           NwaCegarLoop]: 3066 mSDtfsCounter, 2146 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 4068 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:45:30,175 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2146 Valid, 4068 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 20:45:30,179 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2330 states.
[2022-11-02 20:45:30,389 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 2330.
[2022-11-02 20:45:30,393 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2330 states, 1621 states have (on average 1.3084515731030228) internal successors, (2121), 1666 states have internal predecessors, (2121), 551 states have call successors, (551), 161 states have call predecessors, (551), 157 states have return successors, (538), 531 states have call predecessors, (538), 538 states have call successors, (538)
[2022-11-02 20:45:30,405 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 3210 transitions.
[2022-11-02 20:45:30,406 INFO  L78                 Accepts]: Start accepts. Automaton has 2330 states and 3210 transitions. Word has length 65
[2022-11-02 20:45:30,406 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:45:30,406 INFO  L495      AbstractCegarLoop]: Abstraction has 2330 states and 3210 transitions.
[2022-11-02 20:45:30,407 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)
[2022-11-02 20:45:30,407 INFO  L276                IsEmpty]: Start isEmpty. Operand 2330 states and 3210 transitions.
[2022-11-02 20:45:30,410 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2022-11-02 20:45:30,411 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:45:30,411 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:45:30,444 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2022-11-02 20:45:30,626 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:45:30,626 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:45:30,627 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:45:30,627 INFO  L85        PathProgramCache]: Analyzing trace with hash 1430062309, now seen corresponding path program 1 times
[2022-11-02 20:45:30,628 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:45:30,628 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690724457]
[2022-11-02 20:45:30,628 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:45:30,629 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:45:30,629 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:45:30,630 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:45:30,650 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2022-11-02 20:45:31,457 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:45:31,475 INFO  L263         TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-11-02 20:45:31,478 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:45:31,707 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-02 20:45:31,707 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:45:31,707 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:45:31,707 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690724457]
[2022-11-02 20:45:31,708 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [690724457] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:45:31,708 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:45:31,708 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-02 20:45:31,708 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512101647]
[2022-11-02 20:45:31,708 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:45:31,708 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-11-02 20:45:31,709 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:45:31,709 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-11-02 20:45:31,709 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:45:31,709 INFO  L87              Difference]: Start difference. First operand 2330 states and 3210 transitions. Second operand  has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2022-11-02 20:45:32,133 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:45:32,134 INFO  L93              Difference]: Finished difference Result 2360 states and 3251 transitions.
[2022-11-02 20:45:32,134 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-11-02 20:45:32,135 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 68
[2022-11-02 20:45:32,137 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:45:32,150 INFO  L225             Difference]: With dead ends: 2360
[2022-11-02 20:45:32,151 INFO  L226             Difference]: Without dead ends: 2350
[2022-11-02 20:45:32,153 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:45:32,153 INFO  L413           NwaCegarLoop]: 2565 mSDtfsCounter, 13 mSDsluCounter, 10246 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 12811 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-11-02 20:45:32,154 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 12811 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-11-02 20:45:32,158 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2350 states.
[2022-11-02 20:45:32,398 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 2335.
[2022-11-02 20:45:32,402 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2335 states, 1625 states have (on average 1.3076923076923077) internal successors, (2125), 1670 states have internal predecessors, (2125), 551 states have call successors, (551), 161 states have call predecessors, (551), 158 states have return successors, (541), 532 states have call predecessors, (541), 538 states have call successors, (541)
[2022-11-02 20:45:32,413 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3217 transitions.
[2022-11-02 20:45:32,414 INFO  L78                 Accepts]: Start accepts. Automaton has 2335 states and 3217 transitions. Word has length 68
[2022-11-02 20:45:32,415 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:45:32,415 INFO  L495      AbstractCegarLoop]: Abstraction has 2335 states and 3217 transitions.
[2022-11-02 20:45:32,415 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2022-11-02 20:45:32,415 INFO  L276                IsEmpty]: Start isEmpty. Operand 2335 states and 3217 transitions.
[2022-11-02 20:45:32,417 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2022-11-02 20:45:32,417 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:45:32,417 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:45:32,439 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2022-11-02 20:45:32,637 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:45:32,637 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:45:32,637 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:45:32,638 INFO  L85        PathProgramCache]: Analyzing trace with hash -2110680448, now seen corresponding path program 1 times
[2022-11-02 20:45:32,639 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:45:32,639 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098327158]
[2022-11-02 20:45:32,639 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:45:32,639 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:45:32,639 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:45:32,641 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:45:32,684 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2022-11-02 20:45:39,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:45:39,284 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:45:44,270 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:45:45,780 INFO  L130   FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2022-11-02 20:45:45,780 INFO  L359         BasicCegarLoop]: Counterexample is feasible
[2022-11-02 20:45:45,781 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-02 20:45:45,814 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0
[2022-11-02 20:45:46,008 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:45:46,011 INFO  L444         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:45:46,014 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:45:46,088 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:45:46 BoogieIcfgContainer
[2022-11-02 20:45:46,088 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:45:46,089 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:45:46,089 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:45:46,089 INFO  L275        PluginConnector]: Witness Printer initialized
[2022-11-02 20:45:46,090 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:17" (3/4) ...
[2022-11-02 20:45:46,093 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2022-11-02 20:45:46,093 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:45:46,094 INFO  L158              Benchmark]: Toolchain (without parser) took 88055.98ms. Allocated memory was 56.6MB in the beginning and 518.0MB in the end (delta: 461.4MB). Free memory was 33.6MB in the beginning and 211.9MB in the end (delta: -178.3MB). Peak memory consumption was 283.8MB. Max. memory is 16.1GB.
[2022-11-02 20:45:46,094 INFO  L158              Benchmark]: CDTParser took 0.33ms. Allocated memory is still 56.6MB. Free memory was 36.8MB in the beginning and 36.8MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:45:46,095 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 4469.70ms. Allocated memory was 56.6MB in the beginning and 172.0MB in the end (delta: 115.3MB). Free memory was 33.5MB in the beginning and 63.8MB in the end (delta: -30.3MB). Peak memory consumption was 97.8MB. Max. memory is 16.1GB.
[2022-11-02 20:45:46,095 INFO  L158              Benchmark]: Boogie Procedure Inliner took 360.61ms. Allocated memory is still 172.0MB. Free memory was 63.8MB in the beginning and 69.1MB in the end (delta: -5.3MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB.
[2022-11-02 20:45:46,095 INFO  L158              Benchmark]: Boogie Preprocessor took 488.87ms. Allocated memory was 172.0MB in the beginning and 293.6MB in the end (delta: 121.6MB). Free memory was 69.1MB in the beginning and 178.4MB in the end (delta: -109.2MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB.
[2022-11-02 20:45:46,096 INFO  L158              Benchmark]: RCFGBuilder took 54466.47ms. Allocated memory was 293.6MB in the beginning and 518.0MB in the end (delta: 224.4MB). Free memory was 178.4MB in the beginning and 233.9MB in the end (delta: -55.6MB). Peak memory consumption was 251.5MB. Max. memory is 16.1GB.
[2022-11-02 20:45:46,096 INFO  L158              Benchmark]: TraceAbstraction took 28254.73ms. Allocated memory is still 518.0MB. Free memory was 232.9MB in the beginning and 211.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
[2022-11-02 20:45:46,096 INFO  L158              Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 518.0MB. Free memory is still 211.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:45:46,098 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.33ms. Allocated memory is still 56.6MB. Free memory was 36.8MB in the beginning and 36.8MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 4469.70ms. Allocated memory was 56.6MB in the beginning and 172.0MB in the end (delta: 115.3MB). Free memory was 33.5MB in the beginning and 63.8MB in the end (delta: -30.3MB). Peak memory consumption was 97.8MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 360.61ms. Allocated memory is still 172.0MB. Free memory was 63.8MB in the beginning and 69.1MB in the end (delta: -5.3MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 488.87ms. Allocated memory was 172.0MB in the beginning and 293.6MB in the end (delta: 121.6MB). Free memory was 69.1MB in the beginning and 178.4MB in the end (delta: -109.2MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB.
 * RCFGBuilder took 54466.47ms. Allocated memory was 293.6MB in the beginning and 518.0MB in the end (delta: 224.4MB). Free memory was 178.4MB in the beginning and 233.9MB in the end (delta: -55.6MB). Peak memory consumption was 251.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 28254.73ms. Allocated memory is still 518.0MB. Free memory was 232.9MB in the beginning and 211.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
 * Witness Printer took 4.31ms. Allocated memory is still 518.0MB. Free memory is still 211.9MB. There was no memory consumed. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - GenericResult: Unfinished Backtranslation
    The program execution was not completely translated back.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - UnprovableResult [Line: 10992]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: overapproximation of large string literal at line 10595. 
Possible FailurePath: 
[L5971]                      static unsigned int vhost_zcopy_mask ;
[L9348]                      static int experimental_zcopytx ;
[L10590-L10593]              static struct file_operations const vhost_net_fops =
     {& __this_module, & noop_llseek, 0, 0, 0, 0, 0, 0, & vhost_net_ioctl, & vhost_net_compat_ioctl,
    0, & vhost_net_open, 0, & vhost_net_release, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
    0};
[L10594-L10595]              static struct miscdevice vhost_net_misc =
     {238, "vhost-net", & vhost_net_fops, {0, 0}, 0, 0, 0, (unsigned short)0};
[L10620]                     int LDV_IN_INTERRUPT ;
[L11002]                     static int ldv_mutex_cred_guard_mutex ;
[L11109]                     static int ldv_mutex_lock ;
[L11216]                     static int ldv_mutex_mtx ;
[L11323]                     static int ldv_mutex_mutex ;
                 VAL         [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=0, ldv_mutex_cred_guard_mutex=0, ldv_mutex_lock=0, ldv_mutex_mtx=0, ldv_mutex_mutex=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10623]                     struct inode *var_group1 ;
[L10624]                     struct file *var_group2 ;
[L10625]                     unsigned int var_vhost_net_ioctl_27_p1 ;
[L10626]                     unsigned long var_vhost_net_ioctl_27_p2 ;
[L10627]                     unsigned int var_vhost_net_compat_ioctl_28_p1 ;
[L10628]                     unsigned long var_vhost_net_compat_ioctl_28_p2 ;
[L10629]                     int res_vhost_net_open_13 ;
[L10630]                     int ldv_s_vhost_net_fops_file_operations ;
[L10631]                     int tmp ;
[L10632]                     int tmp___0 ;
[L10633]                     int tmp___1 ;
[L10635]                     ldv_s_vhost_net_fops_file_operations = 0
[L10636]                     LDV_IN_INTERRUPT = 1
[L10637]         CALL        ldv_initialize()
[L11433]                     ldv_mutex_cred_guard_mutex = 1
[L11434]                     ldv_mutex_lock = 1
[L11435]                     ldv_mutex_mtx = 1
[L11436]                     ldv_mutex_mutex = 1
                 VAL         [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10637]         RET         ldv_initialize()
[L10638]         FCALL       ldv_handler_precall()
                 VAL         [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10639]         CALL, EXPR  vhost_net_init()
[L10598]                     int tmp ;
                 VAL         [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10600]         COND FALSE  !(experimental_zcopytx != 0)
                 VAL         [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10604]         CALL, EXPR  misc_register(& vhost_net_misc)
[L11595]                     return __VERIFIER_nondet_int();
[L10604]         RET, EXPR   misc_register(& vhost_net_misc)
[L10604]                     tmp = misc_register(& vhost_net_misc)
[L10605]                     return (tmp);
                 VAL         [\result=0, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, tmp=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10639]         RET, EXPR   vhost_net_init()
[L10639]                     tmp = vhost_net_init()
[L10640]         COND FALSE  !(tmp != 0)
                 VAL         [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10682]                     tmp___1 = __VERIFIER_nondet_int()
[L10683]         COND TRUE   tmp___1 != 0 || ldv_s_vhost_net_fops_file_operations != 0
                 VAL         [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___1=2147483648, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10646]                     tmp___0 = __VERIFIER_nondet_int()
[L10648]                     case 0:
[L10661]                     case 1:
[L10669]                     case 2:
                 VAL         [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___0=2, tmp___1=2147483648, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10670]         FCALL       ldv_handler_precall()
                 VAL         [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___0=2, tmp___1=2147483648, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10671]         CALL        vhost_net_ioctl(var_group2, var_vhost_net_ioctl_27_p1, var_vhost_net_ioctl_27_p2)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10521]                     struct vhost_net *n ;
[L10522]                     void *argp ;
[L10523]                     u64 *featurep ;
[L10524]                     struct vhost_vring_file backend ;
[L10525]                     u64 features ;
[L10526]                     int r ;
[L10527]                     unsigned long tmp ;
[L10528]                     long tmp___0 ;
[L10529]                     int tmp___1 ;
[L10530]                     unsigned long tmp___2 ;
[L10531]                     int tmp___3 ;
[L10532]                     long tmp___4 ;
[L10533]                     long tmp___5 ;
[L10535]         EXPR        f->private_data
[L10535]                     n = (struct vhost_net *)f->private_data
[L10536]                     argp = (void *)arg
[L10537]                     featurep = (u64 *)argp
[L10539]                     case 1074310960U:
[L10547]                     case 2148052736U:
[L10555]                     case 1074310912U:
[L10567]                     case 44802U:
[L10568]         CALL        vhost_net_reset_owner(n)
[L10445]                     struct socket *tx_sock ;
[L10446]                     struct socket *rx_sock ;
[L10447]                     long err ;
[L10449]                     tx_sock = 0
[L10450]                     rx_sock = 0
[L10451]         CALL        ldv_mutex_lock_66(& n->dev.mutex)
[L10919]         CALL        ldv_mutex_lock_mutex(ldv_func_arg1)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, lock={2305895925358662721:9223372036804444168}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L11361]         COND TRUE   ldv_mutex_mutex == 1
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, lock={2305895925358662721:9223372036804444168}, lock={2305895925358662721:9223372036804444168}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L11365]                     ldv_mutex_mutex = 2
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={2305895925358662721:9223372036804444168}, lock={2305895925358662721:9223372036804444168}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10919]         RET         ldv_mutex_lock_mutex(ldv_func_arg1)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, ldv_func_arg1={2305895925358662721:9223372036804444168}, ldv_func_arg1={2305895925358662721:9223372036804444168}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10920]         FCALL       mutex_lock(ldv_func_arg1)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, ldv_func_arg1={2305895925358662721:9223372036804444168}, ldv_func_arg1={2305895925358662721:9223372036804444168}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10451]         RET         ldv_mutex_lock_66(& n->dev.mutex)
[L10452]         CALL, EXPR  vhost_dev_check_owner(& n->dev)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, dev={2305895925358662721:9223372036804444152}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L6410]                      struct task_struct *tmp ;
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, dev={2305895925358662721:9223372036804444152}, dev={2305895925358662721:9223372036804444152}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L6412]          CALL, EXPR  get_current()
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L5283]                      struct task_struct *pfo_ret__ ;
[L5286]                      case 1UL:
[L5289]                      case 2UL:
[L5292]                      case 4UL:
[L5295]                      case 8UL:
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L5302]                      return (pfo_ret__);
                 VAL         [\old(ldv_mutex_mutex)=1, \result={8796093022208:536871424}, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, pfo_ret__={8796093022208:536871424}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L6412]          RET, EXPR   get_current()
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, dev={2305895925358662721:9223372036804444152}, dev={2305895925358662721:9223372036804444152}, experimental_zcopytx=0, get_current()={8796093022208:536871424}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L6412]                      tmp = get_current()
[L6413]          EXPR        dev->mm
[L6413]          EXPR        tmp->mm
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, dev={2305895925358662721:9223372036804444152}, dev={2305895925358662721:9223372036804444152}, dev->mm={562949953421344:1224486517435531232}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, tmp={8796093022208:536871424}, tmp->mm={17592186044416:1225031875202908160}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L6413]          EXPR        (unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L
                 VAL         [(unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L=0, \old(ldv_mutex_mutex)=1, __this_module={0:0}, dev={2305895925358662721:9223372036804444152}, dev={2305895925358662721:9223372036804444152}, dev->mm={562949953421344:1224486517435531232}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, tmp={8796093022208:536871424}, tmp->mm={17592186044416:1225031875202908160}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L6413]                      return ((unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L);
[L10452]         RET, EXPR   vhost_dev_check_owner(& n->dev)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={2305895925358662721:9223372036804444152}, n={2305895925358662721:9223372036804444152}, rx_sock={222:0}, tx_sock={217:0}, vhost_dev_check_owner(& n->dev)=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10452]                     err = vhost_dev_check_owner(& n->dev)
[L10453]         COND FALSE  !(err != 0L)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, err=0, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={2305895925358662721:9223372036804444152}, n={2305895925358662721:9223372036804444152}, rx_sock={222:0}, tx_sock={217:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10457]         CALL        vhost_net_stop(n, & tx_sock, & rx_sock)
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={2305895925358662721:9223372036804444152}, rx_sock={222:0}, tx_sock={217:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10183]         CALL        vhost_net_stop_vq(n, (struct vhost_virtqueue *)(& n->vqs) + 1UL)
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={2305895925358662721:9223372036804444152}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0, vq={2305895925358662721:9223372036804461568}]
[L10155]                     struct socket *sock ;
[L10156]                     bool __warned ;
[L10157]                     int tmp ;
[L10158]                     int tmp___0 ;
[L10160]         CALL        ldv_mutex_lock_56(& vq->mutex)
[L10839]         CALL        ldv_mutex_lock_mutex(ldv_func_arg1)
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={2305895925358662721:9223372036804461576}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L11361]         COND FALSE  !(ldv_mutex_mutex == 1)
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={2305895925358662721:9223372036804461576}, lock={2305895925358662721:9223372036804461576}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L11363]         CALL        ldv_error()
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]
[L10992]                     reach_error()
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 105 procedures, 2218 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28.1s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12968 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12949 mSDsluCounter, 45347 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20252 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 25095 mSDtfsCounter, 64 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2808occurred in iteration=5, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 20 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 7.5s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 382 NumberOfCodeBlocks, 382 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 524 SizeOfPredicates, 1 NumberOfNonLiveVariables, 5127 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 10/10 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 could not prove your program: unable to determine feasibility of some traces
[2022-11-02 20:45:46,207 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aa45b80-d9c3-4718-961e-387f43089b55/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
Result:
UNKNOWN: Overapproximated counterexample