./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 e04fb08f
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_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/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_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8 --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-e04fb08
[2022-11-16 11:25:37,835 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-16 11:25:37,838 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-16 11:25:37,871 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-16 11:25:37,872 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-16 11:25:37,878 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-16 11:25:37,882 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-16 11:25:37,892 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-16 11:25:37,899 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-16 11:25:37,901 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-16 11:25:37,903 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-16 11:25:37,906 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-16 11:25:37,908 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-16 11:25:37,913 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-16 11:25:37,915 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-16 11:25:37,917 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-16 11:25:37,919 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-16 11:25:37,926 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-16 11:25:37,928 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-16 11:25:37,931 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-16 11:25:37,938 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-16 11:25:37,940 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-16 11:25:37,941 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-16 11:25:37,944 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-16 11:25:37,948 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-16 11:25:37,952 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-16 11:25:37,953 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-16 11:25:37,954 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-16 11:25:37,955 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-16 11:25:37,956 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-16 11:25:37,956 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-16 11:25:37,957 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-16 11:25:37,958 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-16 11:25:37,959 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-16 11:25:37,961 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-16 11:25:37,961 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-16 11:25:37,962 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-16 11:25:37,962 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-16 11:25:37,963 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-16 11:25:37,964 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-16 11:25:37,965 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-16 11:25:37,966 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf
[2022-11-16 11:25:37,995 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-16 11:25:37,995 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-16 11:25:37,996 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-16 11:25:37,996 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-16 11:25:37,997 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-16 11:25:37,997 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-16 11:25:37,998 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-16 11:25:37,998 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-11-16 11:25:37,998 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-11-16 11:25:37,999 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-16 11:25:37,999 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-11-16 11:25:37,999 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-16 11:25:38,000 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-11-16 11:25:38,000 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-16 11:25:38,000 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-11-16 11:25:38,000 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-11-16 11:25:38,001 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-16 11:25:38,001 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-11-16 11:25:38,001 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-16 11:25:38,001 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-11-16 11:25:38,002 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-16 11:25:38,002 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-16 11:25:38,002 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-16 11:25:38,002 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-16 11:25:38,003 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-16 11:25:38,003 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-11-16 11:25:38,003 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-16 11:25:38,003 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-16 11:25:38,004 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-16 11:25:38,004 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-16 11:25:38,004 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_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/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_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8
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
[2022-11-16 11:25:38,363 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-16 11:25:38,401 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-16 11:25:38,405 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-16 11:25:38,408 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-16 11:25:38,409 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-16 11:25:38,411 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i
[2022-11-16 11:25:38,487 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/data/a64f7f8a6/9093a5bace20433180c007b865b20588/FLAGb1abe948a
[2022-11-16 11:25:39,666 INFO  L306              CDTParser]: Found 1 translation units.
[2022-11-16 11:25:39,667 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i
[2022-11-16 11:25:39,731 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/data/a64f7f8a6/9093a5bace20433180c007b865b20588/FLAGb1abe948a
[2022-11-16 11:25:39,929 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/data/a64f7f8a6/9093a5bace20433180c007b865b20588
[2022-11-16 11:25:39,932 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-16 11:25:39,936 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-16 11:25:39,941 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-16 11:25:39,941 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-16 11:25:39,946 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-16 11:25:39,948 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:25:39" (1/1) ...
[2022-11-16 11:25:39,949 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc8bc03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:39, skipping insertion in model container
[2022-11-16 11:25:39,949 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:25:39" (1/1) ...
[2022-11-16 11:25:39,985 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-16 11:25:40,179 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-16 11:25:43,294 WARN  L229   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_beabe60e-099e-4b97-ad25-fd93cc0525ca/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210]
[2022-11-16 11:25:43,441 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-16 11:25:43,462 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-16 11:25:44,033 WARN  L229   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_beabe60e-099e-4b97-ad25-fd93cc0525ca/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210]
[2022-11-16 11:25:44,078 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-16 11:25:44,172 INFO  L208         MainTranslator]: Completed translation
[2022-11-16 11:25:44,173 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44 WrapperNode
[2022-11-16 11:25:44,175 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-16 11:25:44,177 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-16 11:25:44,178 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-16 11:25:44,178 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-16 11:25:44,187 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44" (1/1) ...
[2022-11-16 11:25:44,312 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44" (1/1) ...
[2022-11-16 11:25:44,607 INFO  L138                Inliner]: procedures = 335, calls = 2629, calls flagged for inlining = 138, calls inlined = 130, statements flattened = 6642
[2022-11-16 11:25:44,608 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-16 11:25:44,609 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-16 11:25:44,610 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-16 11:25:44,610 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-16 11:25:44,621 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44" (1/1) ...
[2022-11-16 11:25:44,621 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44" (1/1) ...
[2022-11-16 11:25:44,684 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44" (1/1) ...
[2022-11-16 11:25:44,698 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44" (1/1) ...
[2022-11-16 11:25:44,854 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44" (1/1) ...
[2022-11-16 11:25:44,879 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44" (1/1) ...
[2022-11-16 11:25:44,905 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44" (1/1) ...
[2022-11-16 11:25:44,927 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44" (1/1) ...
[2022-11-16 11:25:45,044 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-16 11:25:45,045 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-16 11:25:45,045 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-16 11:25:45,046 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-16 11:25:45,047 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44" (1/1) ...
[2022-11-16 11:25:45,056 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-16 11:25:45,074 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/z3
[2022-11-16 11:25:45,093 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-16 11:25:45,150 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_add_used_and_signal
[2022-11-16 11:25:45,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_add_used_and_signal
[2022-11-16 11:25:45,152 INFO  L130     BoogieDeclarations]: Found specification of procedure memcpy_toiovecend
[2022-11-16 11:25:45,152 INFO  L138     BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend
[2022-11-16 11:25:45,153 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_tx_net
[2022-11-16 11:25:45,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_tx_net
[2022-11-16 11:25:45,153 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs
[2022-11-16 11:25:45,153 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs
[2022-11-16 11:25:45,154 INFO  L130     BoogieDeclarations]: Found specification of procedure kref_sub
[2022-11-16 11:25:45,154 INFO  L138     BoogieDeclarations]: Found implementation of procedure kref_sub
[2022-11-16 11:25:45,154 INFO  L130     BoogieDeclarations]: Found specification of procedure vq_access_ok
[2022-11-16 11:25:45,154 INFO  L138     BoogieDeclarations]: Found implementation of procedure vq_access_ok
[2022-11-16 11:25:45,155 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$
[2022-11-16 11:25:45,155 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_flush
[2022-11-16 11:25:45,155 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_flush
[2022-11-16 11:25:45,155 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2022-11-16 11:25:45,156 INFO  L130     BoogieDeclarations]: Found specification of procedure wake_up_process
[2022-11-16 11:25:45,156 INFO  L138     BoogieDeclarations]: Found implementation of procedure wake_up_process
[2022-11-16 11:25:45,157 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_dev_check_owner
[2022-11-16 11:25:45,157 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_dev_check_owner
[2022-11-16 11:25:45,158 INFO  L130     BoogieDeclarations]: Found specification of procedure log_write
[2022-11-16 11:25:45,158 INFO  L138     BoogieDeclarations]: Found implementation of procedure log_write
[2022-11-16 11:25:45,158 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_tx
[2022-11-16 11:25:45,158 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_tx
[2022-11-16 11:25:45,159 INFO  L130     BoogieDeclarations]: Found specification of procedure variable_test_bit
[2022-11-16 11:25:45,159 INFO  L138     BoogieDeclarations]: Found implementation of procedure variable_test_bit
[2022-11-16 11:25:45,159 INFO  L130     BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled
[2022-11-16 11:25:45,159 INFO  L138     BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled
[2022-11-16 11:25:45,160 INFO  L130     BoogieDeclarations]: Found specification of procedure get_current
[2022-11-16 11:25:45,160 INFO  L138     BoogieDeclarations]: Found implementation of procedure get_current
[2022-11-16 11:25:45,160 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_vq_reset
[2022-11-16 11:25:45,160 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_vq_reset
[2022-11-16 11:25:45,161 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_malloc
[2022-11-16 11:25:45,161 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_malloc
[2022-11-16 11:25:45,161 INFO  L130     BoogieDeclarations]: Found specification of procedure vq_log_access_ok
[2022-11-16 11:25:45,161 INFO  L138     BoogieDeclarations]: Found implementation of procedure vq_log_access_ok
[2022-11-16 11:25:45,162 INFO  L130     BoogieDeclarations]: Found specification of procedure mutex_unlock
[2022-11-16 11:25:45,162 INFO  L138     BoogieDeclarations]: Found implementation of procedure mutex_unlock
[2022-11-16 11:25:45,162 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_error
[2022-11-16 11:25:45,162 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_error
[2022-11-16 11:25:45,163 INFO  L130     BoogieDeclarations]: Found specification of procedure __put_user_bad
[2022-11-16 11:25:45,163 INFO  L130     BoogieDeclarations]: Found specification of procedure atomic_read
[2022-11-16 11:25:45,164 INFO  L138     BoogieDeclarations]: Found implementation of procedure atomic_read
[2022-11-16 11:25:45,123 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-16 11:25:45,169 INFO  L130     BoogieDeclarations]: Found specification of procedure __vhost_add_used_n
[2022-11-16 11:25:45,170 INFO  L138     BoogieDeclarations]: Found implementation of procedure __vhost_add_used_n
[2022-11-16 11:25:45,171 INFO  L130     BoogieDeclarations]: Found specification of procedure tx_poll_start
[2022-11-16 11:25:45,171 INFO  L138     BoogieDeclarations]: Found implementation of procedure tx_poll_start
[2022-11-16 11:25:45,171 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_queue
[2022-11-16 11:25:45,172 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_queue
[2022-11-16 11:25:45,172 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_rx
[2022-11-16 11:25:45,172 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_rx
[2022-11-16 11:25:45,172 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_tx_kick
[2022-11-16 11:25:45,173 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_tx_kick
[2022-11-16 11:25:45,173 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_open
[2022-11-16 11:25:45,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_open
[2022-11-16 11:25:45,174 INFO  L130     BoogieDeclarations]: Found specification of procedure mutex_lock
[2022-11-16 11:25:45,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure mutex_lock
[2022-11-16 11:25:45,176 INFO  L130     BoogieDeclarations]: Found specification of procedure spinlock_check
[2022-11-16 11:25:45,176 INFO  L138     BoogieDeclarations]: Found implementation of procedure spinlock_check
[2022-11-16 11:25:45,176 INFO  L130     BoogieDeclarations]: Found specification of procedure ERR_PTR
[2022-11-16 11:25:45,178 INFO  L138     BoogieDeclarations]: Found implementation of procedure ERR_PTR
[2022-11-16 11:25:45,178 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_fget
[2022-11-16 11:25:45,178 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_fget
[2022-11-16 11:25:45,178 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_init
[2022-11-16 11:25:45,179 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_init
[2022-11-16 11:25:45,179 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-16 11:25:45,179 INFO  L130     BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD
[2022-11-16 11:25:45,180 INFO  L138     BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD
[2022-11-16 11:25:45,180 INFO  L130     BoogieDeclarations]: Found specification of procedure vq_memory_access_ok
[2022-11-16 11:25:45,180 INFO  L138     BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok
[2022-11-16 11:25:45,181 INFO  L130     BoogieDeclarations]: Found specification of procedure move_iovec_hdr
[2022-11-16 11:25:45,181 INFO  L138     BoogieDeclarations]: Found implementation of procedure move_iovec_hdr
[2022-11-16 11:25:45,182 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2022-11-16 11:25:45,182 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore
[2022-11-16 11:25:45,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore
[2022-11-16 11:25:45,183 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_queue
[2022-11-16 11:25:45,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_queue
[2022-11-16 11:25:45,183 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_stop
[2022-11-16 11:25:45,183 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_stop
[2022-11-16 11:25:45,184 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-16 11:25:45,184 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2022-11-16 11:25:45,184 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup
[2022-11-16 11:25:45,184 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup
[2022-11-16 11:25:45,185 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_zerocopy_callback
[2022-11-16 11:25:45,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_callback
[2022-11-16 11:25:45,185 INFO  L130     BoogieDeclarations]: Found specification of procedure might_fault
[2022-11-16 11:25:45,185 INFO  L138     BoogieDeclarations]: Found implementation of procedure might_fault
[2022-11-16 11:25:45,185 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_flush_vq
[2022-11-16 11:25:45,186 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_flush_vq
[2022-11-16 11:25:45,186 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_stop_vq
[2022-11-16 11:25:45,187 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_stop_vq
[2022-11-16 11:25:45,187 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int
[2022-11-16 11:25:45,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int
[2022-11-16 11:25:45,188 INFO  L130     BoogieDeclarations]: Found specification of procedure __mutex_init
[2022-11-16 11:25:45,188 INFO  L138     BoogieDeclarations]: Found implementation of procedure __mutex_init
[2022-11-16 11:25:45,188 INFO  L130     BoogieDeclarations]: Found specification of procedure kmalloc
[2022-11-16 11:25:45,189 INFO  L138     BoogieDeclarations]: Found implementation of procedure kmalloc
[2022-11-16 11:25:45,190 INFO  L130     BoogieDeclarations]: Found specification of procedure fput
[2022-11-16 11:25:45,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure fput
[2022-11-16 11:25:45,190 INFO  L130     BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave
[2022-11-16 11:25:45,191 INFO  L138     BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave
[2022-11-16 11:25:45,191 INFO  L130     BoogieDeclarations]: Found specification of procedure next_desc
[2022-11-16 11:25:45,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure next_desc
[2022-11-16 11:25:45,192 INFO  L130     BoogieDeclarations]: Found specification of procedure iov_length
[2022-11-16 11:25:45,192 INFO  L138     BoogieDeclarations]: Found implementation of procedure iov_length
[2022-11-16 11:25:45,192 INFO  L130     BoogieDeclarations]: Found specification of procedure tx_poll_stop
[2022-11-16 11:25:45,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure tx_poll_stop
[2022-11-16 11:25:45,193 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_handler_precall
[2022-11-16 11:25:45,193 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_handler_precall
[2022-11-16 11:25:45,193 INFO  L130     BoogieDeclarations]: Found specification of procedure schedule
[2022-11-16 11:25:45,194 INFO  L138     BoogieDeclarations]: Found implementation of procedure schedule
[2022-11-16 11:25:45,194 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~int
[2022-11-16 11:25:45,195 INFO  L130     BoogieDeclarations]: Found specification of procedure _copy_from_user
[2022-11-16 11:25:45,195 INFO  L138     BoogieDeclarations]: Found implementation of procedure _copy_from_user
[2022-11-16 11:25:45,195 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_has_feature
[2022-11-16 11:25:45,195 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_has_feature
[2022-11-16 11:25:45,195 INFO  L130     BoogieDeclarations]: Found specification of procedure list_empty
[2022-11-16 11:25:45,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure list_empty
[2022-11-16 11:25:45,197 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2022-11-16 11:25:45,201 INFO  L130     BoogieDeclarations]: Found specification of procedure __rcu_read_lock
[2022-11-16 11:25:45,201 INFO  L138     BoogieDeclarations]: Found implementation of procedure __rcu_read_lock
[2022-11-16 11:25:45,201 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-11-16 11:25:45,202 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_init
[2022-11-16 11:25:45,202 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_init
[2022-11-16 11:25:45,203 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget
[2022-11-16 11:25:45,204 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget
[2022-11-16 11:25:45,204 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_flush
[2022-11-16 11:25:45,205 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_flush
[2022-11-16 11:25:45,212 INFO  L130     BoogieDeclarations]: Found specification of procedure rcu_read_lock_held
[2022-11-16 11:25:45,212 INFO  L138     BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held
[2022-11-16 11:25:45,212 INFO  L130     BoogieDeclarations]: Found specification of procedure kfree
[2022-11-16 11:25:45,212 INFO  L138     BoogieDeclarations]: Found implementation of procedure kfree
[2022-11-16 11:25:45,213 INFO  L130     BoogieDeclarations]: Found specification of procedure __get_user_bad
[2022-11-16 11:25:45,213 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_ubuf_put
[2022-11-16 11:25:45,213 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put
[2022-11-16 11:25:45,213 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-11-16 11:25:45,213 INFO  L130     BoogieDeclarations]: Found specification of procedure copy_to_user
[2022-11-16 11:25:45,214 INFO  L138     BoogieDeclarations]: Found implementation of procedure copy_to_user
[2022-11-16 11:25:45,214 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex
[2022-11-16 11:25:45,214 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex
[2022-11-16 11:25:45,214 INFO  L130     BoogieDeclarations]: Found specification of procedure __rcu_read_unlock
[2022-11-16 11:25:45,214 INFO  L138     BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock
[2022-11-16 11:25:45,215 INFO  L130     BoogieDeclarations]: Found specification of procedure translate_desc
[2022-11-16 11:25:45,215 INFO  L138     BoogieDeclarations]: Found implementation of procedure translate_desc
[2022-11-16 11:25:45,215 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_ctx_put
[2022-11-16 11:25:45,215 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put
[2022-11-16 11:25:45,215 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_ioctl
[2022-11-16 11:25:45,216 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_ioctl
[2022-11-16 11:25:45,216 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_disable_vq
[2022-11-16 11:25:45,216 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_disable_vq
[2022-11-16 11:25:45,216 INFO  L130     BoogieDeclarations]: Found specification of procedure mmput
[2022-11-16 11:25:45,216 INFO  L138     BoogieDeclarations]: Found implementation of procedure mmput
[2022-11-16 11:25:45,217 INFO  L130     BoogieDeclarations]: Found specification of procedure kref_put
[2022-11-16 11:25:45,217 INFO  L138     BoogieDeclarations]: Found implementation of procedure kref_put
[2022-11-16 11:25:45,217 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_unlock_irq
[2022-11-16 11:25:45,217 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_unlock_irq
[2022-11-16 11:25:45,217 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv__builtin_expect
[2022-11-16 11:25:45,218 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect
[2022-11-16 11:25:45,218 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_ubuf_put_and_wait
[2022-11-16 11:25:45,218 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put_and_wait
[2022-11-16 11:25:45,218 INFO  L130     BoogieDeclarations]: Found specification of procedure copy_user_generic
[2022-11-16 11:25:45,218 INFO  L138     BoogieDeclarations]: Found implementation of procedure copy_user_generic
[2022-11-16 11:25:45,219 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-11-16 11:25:45,219 INFO  L130     BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle
[2022-11-16 11:25:45,219 INFO  L138     BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle
[2022-11-16 11:25:45,219 INFO  L130     BoogieDeclarations]: Found specification of procedure copy_from_user
[2022-11-16 11:25:45,219 INFO  L138     BoogieDeclarations]: Found implementation of procedure copy_from_user
[2022-11-16 11:25:45,220 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_get_vq_desc
[2022-11-16 11:25:45,220 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_get_vq_desc
[2022-11-16 11:25:45,220 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-16 11:25:45,221 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_signal
[2022-11-16 11:25:45,221 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_signal
[2022-11-16 11:25:45,221 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_enable_notify
[2022-11-16 11:25:45,222 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_enable_notify
[2022-11-16 11:25:45,222 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_stop
[2022-11-16 11:25:45,222 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_stop
[2022-11-16 11:25:45,222 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2022-11-16 11:25:45,222 INFO  L130     BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious
[2022-11-16 11:25:45,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious
[2022-11-16 11:25:45,223 INFO  L130     BoogieDeclarations]: Found specification of procedure __bad_percpu_size
[2022-11-16 11:25:45,223 INFO  L130     BoogieDeclarations]: Found specification of procedure kthread_stop
[2022-11-16 11:25:45,223 INFO  L138     BoogieDeclarations]: Found implementation of procedure kthread_stop
[2022-11-16 11:25:45,223 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID
[2022-11-16 11:25:45,224 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID
[2022-11-16 11:25:45,224 INFO  L130     BoogieDeclarations]: Found specification of procedure memory_access_ok
[2022-11-16 11:25:45,224 INFO  L138     BoogieDeclarations]: Found implementation of procedure memory_access_ok
[2022-11-16 11:25:45,224 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_lock_irq
[2022-11-16 11:25:45,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_lock_irq
[2022-11-16 11:25:45,225 INFO  L130     BoogieDeclarations]: Found specification of procedure current_thread_info
[2022-11-16 11:25:45,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure current_thread_info
[2022-11-16 11:25:45,226 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_seq_done
[2022-11-16 11:25:45,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done
[2022-11-16 11:25:45,226 INFO  L130     BoogieDeclarations]: Found specification of procedure __wake_up
[2022-11-16 11:25:45,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure __wake_up
[2022-11-16 11:25:45,227 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_release
[2022-11-16 11:25:45,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_release
[2022-11-16 11:25:45,227 INFO  L130     BoogieDeclarations]: Found specification of procedure PTR_ERR
[2022-11-16 11:25:45,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure PTR_ERR
[2022-11-16 11:25:45,227 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_disable_notify
[2022-11-16 11:25:45,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_disable_notify
[2022-11-16 11:25:45,228 INFO  L130     BoogieDeclarations]: Found specification of procedure prepare_to_wait
[2022-11-16 11:25:45,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure prepare_to_wait
[2022-11-16 11:25:45,228 INFO  L130     BoogieDeclarations]: Found specification of procedure warn_slowpath_null
[2022-11-16 11:25:45,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure warn_slowpath_null
[2022-11-16 11:25:45,229 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_update_used_flags
[2022-11-16 11:25:45,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags
[2022-11-16 11:25:45,229 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_discard_vq_desc
[2022-11-16 11:25:45,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_discard_vq_desc
[2022-11-16 11:25:45,229 INFO  L130     BoogieDeclarations]: Found specification of procedure lock_is_held
[2022-11-16 11:25:45,230 INFO  L138     BoogieDeclarations]: Found implementation of procedure lock_is_held
[2022-11-16 11:25:45,230 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_flush
[2022-11-16 11:25:45,230 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_flush
[2022-11-16 11:25:45,230 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex
[2022-11-16 11:25:45,230 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex
[2022-11-16 11:25:45,231 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int
[2022-11-16 11:25:45,231 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int
[2022-11-16 11:25:45,231 INFO  L130     BoogieDeclarations]: Found specification of procedure log_access_ok
[2022-11-16 11:25:45,231 INFO  L138     BoogieDeclarations]: Found implementation of procedure log_access_ok
[2022-11-16 11:25:45,231 INFO  L130     BoogieDeclarations]: Found specification of procedure __init_waitqueue_head
[2022-11-16 11:25:45,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head
[2022-11-16 11:25:45,232 INFO  L130     BoogieDeclarations]: Found specification of procedure set_bit
[2022-11-16 11:25:45,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_bit
[2022-11-16 11:25:45,232 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_signal
[2022-11-16 11:25:45,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_signal
[2022-11-16 11:25:45,232 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-16 11:25:45,233 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_zerocopy_signal_used
[2022-11-16 11:25:45,233 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_signal_used
[2022-11-16 11:25:45,233 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_start
[2022-11-16 11:25:45,233 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_start
[2022-11-16 11:25:45,233 INFO  L130     BoogieDeclarations]: Found specification of procedure finish_wait
[2022-11-16 11:25:45,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure finish_wait
[2022-11-16 11:25:45,234 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-16 11:25:45,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-16 11:25:45,234 INFO  L130     BoogieDeclarations]: Found specification of procedure IS_ERR
[2022-11-16 11:25:45,234 INFO  L138     BoogieDeclarations]: Found implementation of procedure IS_ERR
[2022-11-16 11:25:46,325 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-16 11:25:46,329 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-16 11:25:51,784 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
[2022-11-16 11:25:51,785 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;
[2022-11-16 11:25:51,785 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
[2022-11-16 11:25:51,785 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;
[2022-11-16 11:25:51,785 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume __copy_to_user_#t~switch137#1;
[2022-11-16 11:25:51,785 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume !__copy_to_user_#t~switch137#1;
[2022-11-16 11:25:51,785 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;
[2022-11-16 11:25:51,785 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;
[2022-11-16 11:25:51,786 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume __copy_to_user_#t~switch137#1;
[2022-11-16 11:25:51,786 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := true;
[2022-11-16 11:25:51,786 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5825: havoc __copy_to_user_#t~switch137#1;
[2022-11-16 11:25:51,786 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;
[2022-11-16 11:25:51,786 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;
[2022-11-16 11:25:51,786 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume __copy_to_user_#t~switch137#1;
[2022-11-16 11:25:51,786 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;
[2022-11-16 11:25:51,787 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;
[2022-11-16 11:25:51,787 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;
[2022-11-16 11:25:51,787 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
[2022-11-16 11:25:51,787 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;
[2022-11-16 11:25:51,787 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;
[2022-11-16 11:25:51,787 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);
[2022-11-16 11:25:51,787 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;
[2022-11-16 11:25:51,788 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;
[2022-11-16 11:25:51,788 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;
[2022-11-16 11:25:51,788 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;
[2022-11-16 11:25:55,520 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
[2022-11-16 11:25:55,520 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;
[2022-11-16 11:25:55,520 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;
[2022-11-16 11:25:55,521 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;
[2022-11-16 11:25:55,521 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5760: havoc __copy_from_user_#t~switch132#1;
[2022-11-16 11:25:55,521 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume __copy_from_user_#t~switch132#1;
[2022-11-16 11:25:55,521 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := true;
[2022-11-16 11:25:55,521 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
[2022-11-16 11:25:55,521 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;
[2022-11-16 11:25:55,521 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;
[2022-11-16 11:25:55,521 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;
[2022-11-16 11:25:55,521 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;
[2022-11-16 11:25:55,521 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;
[2022-11-16 11:25:55,522 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;
[2022-11-16 11:25:55,522 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;
[2022-11-16 11:25:55,522 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;
[2022-11-16 11:25:55,522 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;
[2022-11-16 11:25:55,522 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume __copy_from_user_#t~switch132#1;
[2022-11-16 11:25:55,522 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume !__copy_from_user_#t~switch132#1;
[2022-11-16 11:25:55,522 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);
[2022-11-16 11:25:55,522 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
[2022-11-16 11:25:55,522 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;
[2022-11-16 11:25:55,522 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;
[2022-11-16 11:25:55,523 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume __copy_from_user_#t~switch132#1;
[2022-11-16 11:25:55,523 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;
[2022-11-16 11:25:57,101 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-16 11:25:57,135 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-16 11:25:57,135 INFO  L300             CfgBuilder]: Removed 0 assume(true) statements.
[2022-11-16 11:25:57,141 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:25:57 BoogieIcfgContainer
[2022-11-16 11:25:57,141 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-16 11:25:57,146 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-16 11:25:57,146 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-16 11:25:57,151 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-16 11:25:57,151 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:25:39" (1/3) ...
[2022-11-16 11:25:57,152 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc7184c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:25:57, skipping insertion in model container
[2022-11-16 11:25:57,152 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:25:44" (2/3) ...
[2022-11-16 11:25:57,153 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc7184c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:25:57, skipping insertion in model container
[2022-11-16 11:25:57,153 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:25:57" (3/3) ...
[2022-11-16 11:25:57,155 INFO  L112   eAbstractionObserver]: Analyzing ICFG main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i
[2022-11-16 11:25:57,175 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-16 11:25:57,176 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-16 11:25:57,310 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-16 11:25:57,318 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;@126ef059, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-16 11:25:57,319 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-16 11:25:57,336 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2226 states, 1537 states have (on average 1.3441769681197138) internal successors, (2066), 1583 states have internal predecessors, (2066), 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)
[2022-11-16 11:25:57,346 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-16 11:25:57,346 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:25:57,347 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 11:25:57,348 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:25:57,356 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:25:57,357 INFO  L85        PathProgramCache]: Analyzing trace with hash 1459195205, now seen corresponding path program 1 times
[2022-11-16 11:25:57,367 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 11:25:57,368 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032679830]
[2022-11-16 11:25:57,368 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:25:57,368 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 11:25:57,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:25:57,989 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-16 11:25:58,000 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:25:58,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 11:25:58,030 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 11:25:58,030 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032679830]
[2022-11-16 11:25:58,031 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032679830] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:25:58,031 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:25:58,031 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 11:25:58,033 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390392316]
[2022-11-16 11:25:58,035 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:25:58,040 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 11:25:58,041 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 11:25:58,073 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 11:25:58,074 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:25:58,081 INFO  L87              Difference]: Start difference. First operand  has 2226 states, 1537 states have (on average 1.3441769681197138) internal successors, (2066), 1583 states have internal predecessors, (2066), 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)
[2022-11-16 11:25:58,515 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:25:58,515 INFO  L93              Difference]: Finished difference Result 4436 states and 6521 transitions.
[2022-11-16 11:25:58,525 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 11:25:58,527 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
[2022-11-16 11:25:58,527 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:25:58,558 INFO  L225             Difference]: With dead ends: 4436
[2022-11-16 11:25:58,558 INFO  L226             Difference]: Without dead ends: 2215
[2022-11-16 11:25:58,576 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
[2022-11-16 11:25:58,580 INFO  L413           NwaCegarLoop]: 3212 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, 3212 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
[2022-11-16 11:25:58,581 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3202 Valid, 3212 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-16 11:25:58,605 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2215 states.
[2022-11-16 11:25:58,776 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2215.
[2022-11-16 11:25:58,782 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2215 states, 1529 states have (on average 1.340745585349902) internal successors, (2050), 1572 states have internal predecessors, (2050), 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)
[2022-11-16 11:25:58,800 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 3201 transitions.
[2022-11-16 11:25:58,803 INFO  L78                 Accepts]: Start accepts. Automaton has 2215 states and 3201 transitions. Word has length 16
[2022-11-16 11:25:58,804 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:25:58,805 INFO  L495      AbstractCegarLoop]: Abstraction has 2215 states and 3201 transitions.
[2022-11-16 11:25:58,805 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)
[2022-11-16 11:25:58,805 INFO  L276                IsEmpty]: Start isEmpty. Operand 2215 states and 3201 transitions.
[2022-11-16 11:25:58,807 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-11-16 11:25:58,807 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:25:58,807 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 11:25:58,807 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-16 11:25:58,808 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:25:58,808 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:25:58,808 INFO  L85        PathProgramCache]: Analyzing trace with hash -2010619409, now seen corresponding path program 1 times
[2022-11-16 11:25:58,809 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 11:25:58,809 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51363767]
[2022-11-16 11:25:58,809 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:25:58,809 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 11:25:58,891 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:25:58,996 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-16 11:25:59,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:25:59,084 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 11:25:59,085 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 11:25:59,085 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51363767]
[2022-11-16 11:25:59,085 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51363767] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:25:59,085 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:25:59,085 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 11:25:59,086 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048682447]
[2022-11-16 11:25:59,086 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:25:59,090 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 11:25:59,091 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 11:25:59,091 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 11:25:59,091 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:25:59,092 INFO  L87              Difference]: Start difference. First operand 2215 states and 3201 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)
[2022-11-16 11:25:59,287 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:25:59,288 INFO  L93              Difference]: Finished difference Result 2217 states and 3202 transitions.
[2022-11-16 11:25:59,288 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 11:25:59,289 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
[2022-11-16 11:25:59,290 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:25:59,309 INFO  L225             Difference]: With dead ends: 2217
[2022-11-16 11:25:59,309 INFO  L226             Difference]: Without dead ends: 2214
[2022-11-16 11:25:59,316 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
[2022-11-16 11:25:59,318 INFO  L413           NwaCegarLoop]: 3198 mSDtfsCounter, 3187 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3187 SdHoareTripleChecker+Valid, 3198 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
[2022-11-16 11:25:59,319 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3187 Valid, 3198 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-16 11:25:59,327 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2214 states.
[2022-11-16 11:25:59,481 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2214.
[2022-11-16 11:25:59,486 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2214 states, 1529 states have (on average 1.3400915631131458) internal successors, (2049), 1571 states have internal predecessors, (2049), 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)
[2022-11-16 11:25:59,506 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2214 states to 2214 states and 3199 transitions.
[2022-11-16 11:25:59,506 INFO  L78                 Accepts]: Start accepts. Automaton has 2214 states and 3199 transitions. Word has length 17
[2022-11-16 11:25:59,506 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:25:59,508 INFO  L495      AbstractCegarLoop]: Abstraction has 2214 states and 3199 transitions.
[2022-11-16 11:25:59,508 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)
[2022-11-16 11:25:59,508 INFO  L276                IsEmpty]: Start isEmpty. Operand 2214 states and 3199 transitions.
[2022-11-16 11:25:59,509 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-11-16 11:25:59,509 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:25:59,509 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 11:25:59,510 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-16 11:25:59,510 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:25:59,510 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:25:59,510 INFO  L85        PathProgramCache]: Analyzing trace with hash 2094282120, now seen corresponding path program 1 times
[2022-11-16 11:25:59,511 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 11:25:59,511 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423894706]
[2022-11-16 11:25:59,512 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:25:59,512 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 11:25:59,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:25:59,672 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-16 11:25:59,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:25:59,687 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 11:25:59,688 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 11:25:59,688 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423894706]
[2022-11-16 11:25:59,688 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423894706] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:25:59,689 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:25:59,689 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 11:25:59,690 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057404729]
[2022-11-16 11:25:59,690 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:25:59,690 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 11:25:59,690 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 11:25:59,691 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 11:25:59,691 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:25:59,692 INFO  L87              Difference]: Start difference. First operand 2214 states and 3199 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)
[2022-11-16 11:25:59,902 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:25:59,902 INFO  L93              Difference]: Finished difference Result 2216 states and 3200 transitions.
[2022-11-16 11:25:59,903 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 11:25:59,903 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
[2022-11-16 11:25:59,903 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:25:59,917 INFO  L225             Difference]: With dead ends: 2216
[2022-11-16 11:25:59,917 INFO  L226             Difference]: Without dead ends: 2213
[2022-11-16 11:25:59,923 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
[2022-11-16 11:25:59,929 INFO  L413           NwaCegarLoop]: 3196 mSDtfsCounter, 3184 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3184 SdHoareTripleChecker+Valid, 3196 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
[2022-11-16 11:25:59,931 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3184 Valid, 3196 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-16 11:25:59,937 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2213 states.
[2022-11-16 11:26:00,115 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2213 to 2213.
[2022-11-16 11:26:00,120 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2213 states, 1529 states have (on average 1.3394375408763899) internal successors, (2048), 1570 states have internal predecessors, (2048), 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)
[2022-11-16 11:26:00,143 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 3197 transitions.
[2022-11-16 11:26:00,144 INFO  L78                 Accepts]: Start accepts. Automaton has 2213 states and 3197 transitions. Word has length 18
[2022-11-16 11:26:00,144 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:26:00,144 INFO  L495      AbstractCegarLoop]: Abstraction has 2213 states and 3197 transitions.
[2022-11-16 11:26:00,145 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)
[2022-11-16 11:26:00,145 INFO  L276                IsEmpty]: Start isEmpty. Operand 2213 states and 3197 transitions.
[2022-11-16 11:26:00,146 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-11-16 11:26:00,146 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:26:00,146 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 11:26:00,146 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-16 11:26:00,147 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:26:00,147 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:26:00,147 INFO  L85        PathProgramCache]: Analyzing trace with hash 497215506, now seen corresponding path program 1 times
[2022-11-16 11:26:00,148 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 11:26:00,148 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120377055]
[2022-11-16 11:26:00,148 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:26:00,148 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 11:26:00,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:00,311 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-16 11:26:00,313 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:00,322 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 11:26:00,323 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 11:26:00,323 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120377055]
[2022-11-16 11:26:00,323 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120377055] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:26:00,323 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:26:00,324 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 11:26:00,324 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159014096]
[2022-11-16 11:26:00,324 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:26:00,325 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 11:26:00,325 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 11:26:00,325 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 11:26:00,325 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:26:00,326 INFO  L87              Difference]: Start difference. First operand 2213 states and 3197 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)
[2022-11-16 11:26:00,649 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:26:00,649 INFO  L93              Difference]: Finished difference Result 5112 states and 7341 transitions.
[2022-11-16 11:26:00,650 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 11:26:00,650 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
[2022-11-16 11:26:00,650 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:26:00,669 INFO  L225             Difference]: With dead ends: 5112
[2022-11-16 11:26:00,669 INFO  L226             Difference]: Without dead ends: 2903
[2022-11-16 11:26:00,681 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
[2022-11-16 11:26:00,682 INFO  L413           NwaCegarLoop]: 3647 mSDtfsCounter, 1308 mSDsluCounter, 2780 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 6427 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
[2022-11-16 11:26:00,682 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 6427 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-16 11:26:00,687 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2903 states.
[2022-11-16 11:26:00,920 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2900.
[2022-11-16 11:26:00,927 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2900 states, 1999 states have (on average 1.3216608304152075) internal successors, (2642), 2061 states have internal predecessors, (2642), 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)
[2022-11-16 11:26:00,947 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 4094 transitions.
[2022-11-16 11:26:00,948 INFO  L78                 Accepts]: Start accepts. Automaton has 2900 states and 4094 transitions. Word has length 19
[2022-11-16 11:26:00,949 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:26:00,949 INFO  L495      AbstractCegarLoop]: Abstraction has 2900 states and 4094 transitions.
[2022-11-16 11:26:00,949 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)
[2022-11-16 11:26:00,950 INFO  L276                IsEmpty]: Start isEmpty. Operand 2900 states and 4094 transitions.
[2022-11-16 11:26:00,962 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2022-11-16 11:26:00,963 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:26:00,963 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]
[2022-11-16 11:26:00,963 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-11-16 11:26:00,964 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:26:00,964 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:26:00,964 INFO  L85        PathProgramCache]: Analyzing trace with hash 1973300331, now seen corresponding path program 1 times
[2022-11-16 11:26:00,964 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 11:26:00,965 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96229546]
[2022-11-16 11:26:00,965 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:26:00,965 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 11:26:01,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:01,155 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-16 11:26:01,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:01,165 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2022-11-16 11:26:01,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:01,177 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2022-11-16 11:26:01,178 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:01,185 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2022-11-16 11:26:01,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:01,193 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2022-11-16 11:26:01,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:01,216 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2022-11-16 11:26:01,218 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:01,227 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-16 11:26:01,227 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 11:26:01,228 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96229546]
[2022-11-16 11:26:01,228 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96229546] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:26:01,228 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:26:01,228 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-16 11:26:01,229 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195880037]
[2022-11-16 11:26:01,229 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:26:01,230 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-16 11:26:01,230 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 11:26:01,230 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-16 11:26:01,231 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-16 11:26:01,231 INFO  L87              Difference]: Start difference. First operand 2900 states and 4094 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)
[2022-11-16 11:26:04,205 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 []
[2022-11-16 11:26:18,558 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:26:18,558 INFO  L93              Difference]: Finished difference Result 6330 states and 9002 transitions.
[2022-11-16 11:26:18,559 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-11-16 11:26:18,559 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
[2022-11-16 11:26:18,559 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:26:18,599 INFO  L225             Difference]: With dead ends: 6330
[2022-11-16 11:26:18,599 INFO  L226             Difference]: Without dead ends: 3443
[2022-11-16 11:26:18,615 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
[2022-11-16 11:26:18,617 INFO  L413           NwaCegarLoop]: 1582 mSDtfsCounter, 2406 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 5504 mSolverCounterSat, 1437 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2706 SdHoareTripleChecker+Valid, 4363 SdHoareTripleChecker+Invalid, 6942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1437 IncrementalHoareTripleChecker+Valid, 5504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time
[2022-11-16 11:26:18,617 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2706 Valid, 4363 Invalid, 6942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1437 Valid, 5504 Invalid, 1 Unknown, 0 Unchecked, 16.7s Time]
[2022-11-16 11:26:18,624 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3443 states.
[2022-11-16 11:26:18,890 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3443 to 2955.
[2022-11-16 11:26:18,899 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2955 states, 2038 states have (on average 1.3189401373895977) internal successors, (2688), 2102 states have internal predecessors, (2688), 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)
[2022-11-16 11:26:18,922 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 4164 transitions.
[2022-11-16 11:26:18,923 INFO  L78                 Accepts]: Start accepts. Automaton has 2955 states and 4164 transitions. Word has length 56
[2022-11-16 11:26:18,925 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:26:18,925 INFO  L495      AbstractCegarLoop]: Abstraction has 2955 states and 4164 transitions.
[2022-11-16 11:26:18,925 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)
[2022-11-16 11:26:18,926 INFO  L276                IsEmpty]: Start isEmpty. Operand 2955 states and 4164 transitions.
[2022-11-16 11:26:18,928 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2022-11-16 11:26:18,928 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:26:18,928 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]
[2022-11-16 11:26:18,929 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-11-16 11:26:18,929 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:26:18,929 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:26:18,930 INFO  L85        PathProgramCache]: Analyzing trace with hash -828188851, now seen corresponding path program 1 times
[2022-11-16 11:26:18,930 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 11:26:18,930 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314125529]
[2022-11-16 11:26:18,930 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:26:18,931 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 11:26:19,036 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:19,159 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-16 11:26:19,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:19,166 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2022-11-16 11:26:19,167 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:19,177 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2022-11-16 11:26:19,179 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:19,186 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2022-11-16 11:26:19,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:19,194 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2022-11-16 11:26:19,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:19,209 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2022-11-16 11:26:19,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:19,230 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-16 11:26:19,231 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 11:26:19,231 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314125529]
[2022-11-16 11:26:19,231 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314125529] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:26:19,231 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:26:19,232 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-16 11:26:19,232 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011959743]
[2022-11-16 11:26:19,232 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:26:19,233 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-16 11:26:19,233 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 11:26:19,233 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-16 11:26:19,234 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-16 11:26:19,234 INFO  L87              Difference]: Start difference. First operand 2955 states and 4164 transitions. Second operand  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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)
[2022-11-16 11:26:21,863 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 []
[2022-11-16 11:26:29,412 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:26:29,412 INFO  L93              Difference]: Finished difference Result 5997 states and 8555 transitions.
[2022-11-16 11:26:29,413 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-11-16 11:26:29,413 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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 60
[2022-11-16 11:26:29,414 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:26:29,435 INFO  L225             Difference]: With dead ends: 5997
[2022-11-16 11:26:29,435 INFO  L226             Difference]: Without dead ends: 3055
[2022-11-16 11:26:29,453 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
[2022-11-16 11:26:29,454 INFO  L413           NwaCegarLoop]: 1749 mSDtfsCounter, 1393 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 3507 mSolverCounterSat, 412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 4215 SdHoareTripleChecker+Invalid, 3920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 3507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time
[2022-11-16 11:26:29,454 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 4215 Invalid, 3920 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [412 Valid, 3507 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time]
[2022-11-16 11:26:29,460 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3055 states.
[2022-11-16 11:26:29,780 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2955.
[2022-11-16 11:26:29,788 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2955 states, 2038 states have (on average 1.3159960745829244) internal successors, (2682), 2102 states have internal predecessors, (2682), 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)
[2022-11-16 11:26:29,812 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 4158 transitions.
[2022-11-16 11:26:29,813 INFO  L78                 Accepts]: Start accepts. Automaton has 2955 states and 4158 transitions. Word has length 60
[2022-11-16 11:26:29,816 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:26:29,816 INFO  L495      AbstractCegarLoop]: Abstraction has 2955 states and 4158 transitions.
[2022-11-16 11:26:29,816 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 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)
[2022-11-16 11:26:29,817 INFO  L276                IsEmpty]: Start isEmpty. Operand 2955 states and 4158 transitions.
[2022-11-16 11:26:29,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2022-11-16 11:26:29,820 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:26:29,821 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]
[2022-11-16 11:26:29,821 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-11-16 11:26:29,821 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:26:29,822 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:26:29,822 INFO  L85        PathProgramCache]: Analyzing trace with hash -1320166996, now seen corresponding path program 1 times
[2022-11-16 11:26:29,822 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 11:26:29,823 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286801957]
[2022-11-16 11:26:29,823 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:26:29,823 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 11:26:29,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:30,191 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2022-11-16 11:26:30,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:30,197 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19
[2022-11-16 11:26:30,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:30,212 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2022-11-16 11:26:30,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:30,233 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2022-11-16 11:26:30,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:30,243 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2022-11-16 11:26:30,247 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:30,263 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2022-11-16 11:26:30,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:26:30,274 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-16 11:26:30,275 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-16 11:26:30,275 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286801957]
[2022-11-16 11:26:30,275 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286801957] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:26:30,275 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:26:30,276 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-16 11:26:30,276 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585732357]
[2022-11-16 11:26:30,276 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:26:30,276 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-16 11:26:30,277 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-16 11:26:30,277 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-16 11:26:30,277 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-16 11:26:30,278 INFO  L87              Difference]: Start difference. First operand 2955 states and 4158 transitions. Second operand  has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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)
[2022-11-16 11:26:32,918 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 []
[2022-11-16 11:26:39,487 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:26:39,488 INFO  L93              Difference]: Finished difference Result 5031 states and 7024 transitions.
[2022-11-16 11:26:39,488 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-11-16 11:26:39,488 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 63
[2022-11-16 11:26:39,489 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:26:39,503 INFO  L225             Difference]: With dead ends: 5031
[2022-11-16 11:26:39,503 INFO  L226             Difference]: Without dead ends: 2507
[2022-11-16 11:26:39,516 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
[2022-11-16 11:26:39,517 INFO  L413           NwaCegarLoop]: 1188 mSDtfsCounter, 2912 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 2958 mSolverCounterSat, 1118 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3175 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 4077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1118 IncrementalHoareTripleChecker+Valid, 2958 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time
[2022-11-16 11:26:39,518 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3175 Valid, 2138 Invalid, 4077 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1118 Valid, 2958 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time]
[2022-11-16 11:26:39,523 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2507 states.
[2022-11-16 11:26:39,700 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2507 to 2388.
[2022-11-16 11:26:39,715 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2388 states, 1653 states have (on average 1.3049001814882033) internal successors, (2157), 1699 states have internal predecessors, (2157), 569 states have call successors, (569), 170 states have call predecessors, (569), 165 states have return successors, (554), 547 states have call predecessors, (554), 554 states have call successors, (554)
[2022-11-16 11:26:39,725 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3280 transitions.
[2022-11-16 11:26:39,726 INFO  L78                 Accepts]: Start accepts. Automaton has 2388 states and 3280 transitions. Word has length 63
[2022-11-16 11:26:39,726 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:26:39,727 INFO  L495      AbstractCegarLoop]: Abstraction has 2388 states and 3280 transitions.
[2022-11-16 11:26:39,728 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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)
[2022-11-16 11:26:39,728 INFO  L276                IsEmpty]: Start isEmpty. Operand 2388 states and 3280 transitions.
[2022-11-16 11:26:39,735 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2022-11-16 11:26:39,735 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:26:39,735 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]
[2022-11-16 11:26:39,736 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-11-16 11:26:39,736 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:26:39,736 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:26:39,737 INFO  L85        PathProgramCache]: Analyzing trace with hash 1114343259, now seen corresponding path program 1 times
[2022-11-16 11:26:39,737 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-16 11:26:39,738 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722072269]
[2022-11-16 11:26:39,738 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:26:39,738 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-16 11:26:39,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-16 11:26:39,935 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-16 11:26:40,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-16 11:26:40,163 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-16 11:26:40,163 INFO  L359         BasicCegarLoop]: Counterexample is feasible
[2022-11-16 11:26:40,165 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-16 11:26:40,167 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-11-16 11:26:40,171 INFO  L444         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 11:26:40,177 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2022-11-16 11:26:40,296 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:26:40 BoogieIcfgContainer
[2022-11-16 11:26:40,296 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-16 11:26:40,297 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-16 11:26:40,297 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2022-11-16 11:26:40,297 INFO  L275        PluginConnector]: Witness Printer initialized
[2022-11-16 11:26:40,298 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:25:57" (3/4) ...
[2022-11-16 11:26:40,302 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2022-11-16 11:26:40,302 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-16 11:26:40,303 INFO  L158              Benchmark]: Toolchain (without parser) took 60366.53ms. Allocated memory was 121.6MB in the beginning and 658.5MB in the end (delta: 536.9MB). Free memory was 70.7MB in the beginning and 235.3MB in the end (delta: -164.6MB). Peak memory consumption was 371.5MB. Max. memory is 16.1GB.
[2022-11-16 11:26:40,303 INFO  L158              Benchmark]: CDTParser took 0.41ms. Allocated memory is still 121.6MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-16 11:26:40,304 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 4234.95ms. Allocated memory was 121.6MB in the beginning and 169.9MB in the end (delta: 48.2MB). Free memory was 70.5MB in the beginning and 87.8MB in the end (delta: -17.3MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB.
[2022-11-16 11:26:40,304 INFO  L158              Benchmark]: Boogie Procedure Inliner took 431.84ms. Allocated memory is still 169.9MB. Free memory was 86.9MB in the beginning and 88.6MB in the end (delta: -1.7MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB.
[2022-11-16 11:26:40,305 INFO  L158              Benchmark]: Boogie Preprocessor took 434.85ms. Allocated memory was 169.9MB in the beginning and 276.8MB in the end (delta: 107.0MB). Free memory was 88.6MB in the beginning and 183.8MB in the end (delta: -95.2MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB.
[2022-11-16 11:26:40,305 INFO  L158              Benchmark]: RCFGBuilder took 12096.38ms. Allocated memory was 276.8MB in the beginning and 406.8MB in the end (delta: 130.0MB). Free memory was 183.8MB in the beginning and 148.8MB in the end (delta: 35.0MB). Peak memory consumption was 168.4MB. Max. memory is 16.1GB.
[2022-11-16 11:26:40,306 INFO  L158              Benchmark]: TraceAbstraction took 43150.24ms. Allocated memory was 406.8MB in the beginning and 658.5MB in the end (delta: 251.7MB). Free memory was 148.8MB in the beginning and 235.3MB in the end (delta: -86.5MB). Peak memory consumption was 165.1MB. Max. memory is 16.1GB.
[2022-11-16 11:26:40,306 INFO  L158              Benchmark]: Witness Printer took 5.44ms. Allocated memory is still 658.5MB. Free memory is still 235.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-16 11:26:40,309 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.41ms. Allocated memory is still 121.6MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 4234.95ms. Allocated memory was 121.6MB in the beginning and 169.9MB in the end (delta: 48.2MB). Free memory was 70.5MB in the beginning and 87.8MB in the end (delta: -17.3MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 431.84ms. Allocated memory is still 169.9MB. Free memory was 86.9MB in the beginning and 88.6MB in the end (delta: -1.7MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 434.85ms. Allocated memory was 169.9MB in the beginning and 276.8MB in the end (delta: 107.0MB). Free memory was 88.6MB in the beginning and 183.8MB in the end (delta: -95.2MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB.
 * RCFGBuilder took 12096.38ms. Allocated memory was 276.8MB in the beginning and 406.8MB in the end (delta: 130.0MB). Free memory was 183.8MB in the beginning and 148.8MB in the end (delta: 35.0MB). Peak memory consumption was 168.4MB. Max. memory is 16.1GB.
 * TraceAbstraction took 43150.24ms. Allocated memory was 406.8MB in the beginning and 658.5MB in the end (delta: 251.7MB). Free memory was 148.8MB in the beginning and 235.3MB in the end (delta: -86.5MB). Peak memory consumption was 165.1MB. Max. memory is 16.1GB.
 * Witness Printer took 5.44ms. Allocated memory is still 658.5MB. Free memory is still 235.3MB. 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 ;
[L11216]                     static int ldv_mutex_mtx ;
[L9348]                      static int experimental_zcopytx ;
[L10620]                     int LDV_IN_INTERRUPT ;
[L11109]                     static int ldv_mutex_lock ;
[L11323]                     static int ldv_mutex_mutex ;
[L10594-L10595]              static struct miscdevice vhost_net_misc =
     {238, "vhost-net", & vhost_net_fops, {0, 0}, 0, 0, 0, (unsigned short)0};
[L11002]                     static int ldv_mutex_cred_guard_mutex ;
[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};
                 VAL         [__this_module={18446744073709551618:18446744073709551620}, 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={216:0}, vhost_net_misc={215:0}, 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={18446744073709551618:18446744073709551620}, 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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L10637]         RET         ldv_initialize()
[L10638]         FCALL       ldv_handler_precall()
                 VAL         [__this_module={18446744073709551618:18446744073709551620}, 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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L10639]         CALL, EXPR  vhost_net_init()
[L10598]                     int tmp ;
                 VAL         [__this_module={18446744073709551618:18446744073709551620}, 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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L10600]         COND FALSE  !(experimental_zcopytx != 0)
                 VAL         [__this_module={18446744073709551618:18446744073709551620}, 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={216:0}, vhost_net_misc={215:0}, 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={18446744073709551618:18446744073709551620}, 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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L10639]         RET, EXPR   vhost_net_init()
[L10639]                     tmp = vhost_net_init()
[L10640]         COND FALSE  !(tmp != 0)
                 VAL         [__this_module={18446744073709551618:18446744073709551620}, 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={216:0}, vhost_net_misc={215:0}, 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={18446744073709551618:18446744073709551620}, 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=1, vhost_net_fops={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L10646]                     tmp___0 = __VERIFIER_nondet_int()
[L10648]                     case 0:
[L10661]                     case 1:
[L10669]                     case 2:
                 VAL         [__this_module={18446744073709551618:18446744073709551620}, 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=1, vhost_net_fops={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L10670]         FCALL       ldv_handler_precall()
                 VAL         [__this_module={18446744073709551618:18446744073709551620}, 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=1, vhost_net_fops={216:0}, vhost_net_misc={215:0}, 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={18446744073709551618:18446744073709551620}, 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={216:0}, vhost_net_misc={215:0}, 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={18446744073709551618:18446744073709551620}, 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={18446744073709551621:-17400}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L11361]         COND TRUE   ldv_mutex_mutex == 1
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551618:18446744073709551620}, 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={18446744073709551621:-17400}, lock={18446744073709551621:-17400}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L11365]                     ldv_mutex_mutex = 2
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551618:18446744073709551620}, 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={18446744073709551621:-17400}, lock={18446744073709551621:-17400}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L10919]         RET         ldv_mutex_lock_mutex(ldv_func_arg1)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551618:18446744073709551620}, experimental_zcopytx=0, ldv_func_arg1={18446744073709551621:-17400}, ldv_func_arg1={18446744073709551621:-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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L10920]         FCALL       mutex_lock(ldv_func_arg1)
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551618:18446744073709551620}, experimental_zcopytx=0, ldv_func_arg1={18446744073709551621:-17400}, ldv_func_arg1={18446744073709551621:-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={216:0}, vhost_net_misc={215:0}, 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={18446744073709551618:18446744073709551620}, dev={18446744073709551621:-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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L6410]                      struct task_struct *tmp ;
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551618:18446744073709551620}, dev={18446744073709551621:-17416}, dev={18446744073709551621:-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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L6412]          CALL, EXPR  get_current()
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551618:18446744073709551620}, 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={216:0}, vhost_net_misc={215:0}, 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={18446744073709551618:18446744073709551620}, 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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L5302]                      return (pfo_ret__);
                 VAL         [\old(ldv_mutex_mutex)=1, \result={18446744073709551619:-4}, __this_module={18446744073709551618:18446744073709551620}, 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__={18446744073709551619:-4}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L6412]          RET, EXPR   get_current()
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551618:18446744073709551620}, dev={18446744073709551621:-17416}, dev={18446744073709551621:-17416}, experimental_zcopytx=0, get_current()={18446744073709551619:-4}, 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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L6412]                      tmp = get_current()
[L6413]          EXPR        dev->mm
[L6413]          EXPR        tmp->mm
[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={18446744073709551618:18446744073709551620}, 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={18446744073709551621:-17416}, n={18446744073709551621:-17416}, rx_sock={220:0}, tx_sock={217:0}, vhost_dev_check_owner(& n->dev)=0, vhost_net_fops={216:0}, vhost_net_misc={215:0}, 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={18446744073709551618:18446744073709551620}, 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={18446744073709551621:-17416}, n={18446744073709551621:-17416}, rx_sock={220:0}, tx_sock={217:0}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L10457]         CALL        vhost_net_stop(n, & tx_sock, & rx_sock)
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551618:18446744073709551620}, 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={18446744073709551621:-17416}, rx_sock={220:0}, tx_sock={217:0}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, 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={18446744073709551618:18446744073709551620}, 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={18446744073709551621:-17416}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0, vq={18446744073709551621:0}]
[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={18446744073709551618:18446744073709551620}, 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={18446744073709551621:8}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L11361]         COND FALSE  !(ldv_mutex_mutex == 1)
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551618:18446744073709551620}, 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={18446744073709551621:8}, lock={18446744073709551621:8}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L11363]         CALL        ldv_error()
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551618:18446744073709551620}, 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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L10992]                     reach_error()
                 VAL         [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551618:18446744073709551620}, 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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 109 procedures, 2226 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 42.9s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 38.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 18414 SdHoareTripleChecker+Valid, 35.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17592 mSDsluCounter, 26749 SdHoareTripleChecker+Invalid, 31.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8977 mSDsCounter, 2971 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11982 IncrementalHoareTripleChecker+Invalid, 14956 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2971 mSolverCounterUnsat, 17772 mSDtfsCounter, 11982 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2955occurred 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: 1.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 710 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 242 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 6/6 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
[2022-11-16 11:26:40,388 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/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_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/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_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8 --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-e04fb08
[2022-11-16 11:26:42,872 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-16 11:26:42,875 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-16 11:26:42,913 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-16 11:26:42,914 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-16 11:26:42,918 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-16 11:26:42,921 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-16 11:26:42,926 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-16 11:26:42,929 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-16 11:26:42,932 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-16 11:26:42,934 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-16 11:26:42,937 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-16 11:26:42,938 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-16 11:26:42,943 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-16 11:26:42,944 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-16 11:26:42,946 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-16 11:26:42,947 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-16 11:26:42,948 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-16 11:26:42,954 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-16 11:26:42,956 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-16 11:26:42,962 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-16 11:26:42,964 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-16 11:26:42,965 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-16 11:26:42,967 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-16 11:26:42,971 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-16 11:26:42,976 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-16 11:26:42,977 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-16 11:26:42,978 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-16 11:26:42,979 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-16 11:26:42,980 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-16 11:26:42,980 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-16 11:26:42,981 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-16 11:26:42,983 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-16 11:26:42,984 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-16 11:26:42,985 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-16 11:26:42,985 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-16 11:26:42,986 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-16 11:26:42,987 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-16 11:26:42,987 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-16 11:26:42,989 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-16 11:26:42,990 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-16 11:26:42,991 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2022-11-16 11:26:43,038 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-16 11:26:43,038 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-16 11:26:43,039 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-16 11:26:43,040 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-16 11:26:43,041 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-16 11:26:43,041 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-16 11:26:43,042 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-16 11:26:43,043 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-11-16 11:26:43,043 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-11-16 11:26:43,043 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-16 11:26:43,044 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-16 11:26:43,045 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-11-16 11:26:43,045 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-16 11:26:43,045 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-11-16 11:26:43,045 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-11-16 11:26:43,046 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2022-11-16 11:26:43,046 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-16 11:26:43,046 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-11-16 11:26:43,046 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-16 11:26:43,047 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-11-16 11:26:43,047 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-16 11:26:43,047 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-11-16 11:26:43,047 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-16 11:26:43,047 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-16 11:26:43,048 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-16 11:26:43,048 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-16 11:26:43,048 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-16 11:26:43,049 INFO  L138        SettingsManager]:  * Trace refinement strategy=WOLF
[2022-11-16 11:26:43,049 INFO  L138        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2022-11-16 11:26:43,049 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-16 11:26:43,049 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-16 11:26:43,050 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-16 11:26:43,050 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-16 11:26:43,050 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_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/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_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8
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
[2022-11-16 11:26:43,447 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-16 11:26:43,470 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-16 11:26:43,473 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-16 11:26:43,475 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-16 11:26:43,478 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-16 11:26:43,479 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i
[2022-11-16 11:26:43,565 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/data/f06d3ec3d/f3adc85d2a964656b6ea77fe08ffd107/FLAG228aa7770
[2022-11-16 11:26:44,655 INFO  L306              CDTParser]: Found 1 translation units.
[2022-11-16 11:26:44,655 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i
[2022-11-16 11:26:44,743 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/data/f06d3ec3d/f3adc85d2a964656b6ea77fe08ffd107/FLAG228aa7770
[2022-11-16 11:26:45,035 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/data/f06d3ec3d/f3adc85d2a964656b6ea77fe08ffd107
[2022-11-16 11:26:45,038 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-16 11:26:45,042 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-16 11:26:45,043 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-16 11:26:45,044 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-16 11:26:45,052 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-16 11:26:45,054 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:26:45" (1/1) ...
[2022-11-16 11:26:45,055 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1a9f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:45, skipping insertion in model container
[2022-11-16 11:26:45,056 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:26:45" (1/1) ...
[2022-11-16 11:26:45,065 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-16 11:26:45,240 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-16 11:26:48,178 WARN  L229   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_beabe60e-099e-4b97-ad25-fd93cc0525ca/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210]
[2022-11-16 11:26:48,298 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-16 11:26:48,319 INFO  L200         MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2022-11-16 11:26:48,415 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-16 11:26:48,878 WARN  L229   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_beabe60e-099e-4b97-ad25-fd93cc0525ca/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210]
[2022-11-16 11:26:48,894 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-16 11:26:48,910 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-16 11:26:49,581 WARN  L229   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_beabe60e-099e-4b97-ad25-fd93cc0525ca/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210]
[2022-11-16 11:26:49,594 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-16 11:26:49,744 INFO  L208         MainTranslator]: Completed translation
[2022-11-16 11:26:49,745 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49 WrapperNode
[2022-11-16 11:26:49,745 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-16 11:26:49,747 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-16 11:26:49,747 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-16 11:26:49,747 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-16 11:26:49,755 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49" (1/1) ...
[2022-11-16 11:26:49,887 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49" (1/1) ...
[2022-11-16 11:26:50,134 INFO  L138                Inliner]: procedures = 350, calls = 2627, calls flagged for inlining = 143, calls inlined = 135, statements flattened = 6427
[2022-11-16 11:26:50,134 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-16 11:26:50,136 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-16 11:26:50,136 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-16 11:26:50,137 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-16 11:26:50,149 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49" (1/1) ...
[2022-11-16 11:26:50,149 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49" (1/1) ...
[2022-11-16 11:26:50,221 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49" (1/1) ...
[2022-11-16 11:26:50,234 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49" (1/1) ...
[2022-11-16 11:26:50,429 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49" (1/1) ...
[2022-11-16 11:26:50,467 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49" (1/1) ...
[2022-11-16 11:26:50,500 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49" (1/1) ...
[2022-11-16 11:26:50,528 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49" (1/1) ...
[2022-11-16 11:26:50,567 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-16 11:26:50,568 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-16 11:26:50,569 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-16 11:26:50,569 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-16 11:26:50,570 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49" (1/1) ...
[2022-11-16 11:26:50,579 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-16 11:26:50,593 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/z3
[2022-11-16 11:26:50,608 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-16 11:26:50,639 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-16 11:26:50,668 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_add_used_and_signal
[2022-11-16 11:26:50,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_add_used_and_signal
[2022-11-16 11:26:50,669 INFO  L130     BoogieDeclarations]: Found specification of procedure memcpy_toiovecend
[2022-11-16 11:26:50,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend
[2022-11-16 11:26:50,669 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_tx_net
[2022-11-16 11:26:50,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_tx_net
[2022-11-16 11:26:50,669 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE1
[2022-11-16 11:26:50,670 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs
[2022-11-16 11:26:50,670 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs
[2022-11-16 11:26:50,670 INFO  L130     BoogieDeclarations]: Found specification of procedure kref_sub
[2022-11-16 11:26:50,670 INFO  L138     BoogieDeclarations]: Found implementation of procedure kref_sub
[2022-11-16 11:26:50,671 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE8
[2022-11-16 11:26:50,671 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2022-11-16 11:26:50,671 INFO  L130     BoogieDeclarations]: Found specification of procedure vq_access_ok
[2022-11-16 11:26:50,671 INFO  L138     BoogieDeclarations]: Found implementation of procedure vq_access_ok
[2022-11-16 11:26:50,672 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$
[2022-11-16 11:26:50,672 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE2
[2022-11-16 11:26:50,672 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_flush
[2022-11-16 11:26:50,672 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_flush
[2022-11-16 11:26:50,673 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2022-11-16 11:26:50,673 INFO  L130     BoogieDeclarations]: Found specification of procedure wake_up_process
[2022-11-16 11:26:50,673 INFO  L138     BoogieDeclarations]: Found implementation of procedure wake_up_process
[2022-11-16 11:26:50,673 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_dev_check_owner
[2022-11-16 11:26:50,673 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_dev_check_owner
[2022-11-16 11:26:50,674 INFO  L130     BoogieDeclarations]: Found specification of procedure log_write
[2022-11-16 11:26:50,674 INFO  L138     BoogieDeclarations]: Found implementation of procedure log_write
[2022-11-16 11:26:50,674 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_tx
[2022-11-16 11:26:50,674 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_tx
[2022-11-16 11:26:50,675 INFO  L130     BoogieDeclarations]: Found specification of procedure variable_test_bit
[2022-11-16 11:26:50,675 INFO  L138     BoogieDeclarations]: Found implementation of procedure variable_test_bit
[2022-11-16 11:26:50,675 INFO  L130     BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled
[2022-11-16 11:26:50,675 INFO  L138     BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled
[2022-11-16 11:26:50,676 INFO  L130     BoogieDeclarations]: Found specification of procedure get_current
[2022-11-16 11:26:50,676 INFO  L138     BoogieDeclarations]: Found implementation of procedure get_current
[2022-11-16 11:26:50,677 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_vq_reset
[2022-11-16 11:26:50,677 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_vq_reset
[2022-11-16 11:26:50,677 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_malloc
[2022-11-16 11:26:50,677 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_malloc
[2022-11-16 11:26:50,678 INFO  L130     BoogieDeclarations]: Found specification of procedure vq_log_access_ok
[2022-11-16 11:26:50,678 INFO  L138     BoogieDeclarations]: Found implementation of procedure vq_log_access_ok
[2022-11-16 11:26:50,678 INFO  L130     BoogieDeclarations]: Found specification of procedure mutex_unlock
[2022-11-16 11:26:50,679 INFO  L138     BoogieDeclarations]: Found implementation of procedure mutex_unlock
[2022-11-16 11:26:50,679 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_error
[2022-11-16 11:26:50,679 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_error
[2022-11-16 11:26:50,679 INFO  L130     BoogieDeclarations]: Found specification of procedure __put_user_bad
[2022-11-16 11:26:50,679 INFO  L130     BoogieDeclarations]: Found specification of procedure atomic_read
[2022-11-16 11:26:50,680 INFO  L138     BoogieDeclarations]: Found implementation of procedure atomic_read
[2022-11-16 11:26:50,680 INFO  L130     BoogieDeclarations]: Found specification of procedure __vhost_add_used_n
[2022-11-16 11:26:50,681 INFO  L138     BoogieDeclarations]: Found implementation of procedure __vhost_add_used_n
[2022-11-16 11:26:50,681 INFO  L130     BoogieDeclarations]: Found specification of procedure tx_poll_start
[2022-11-16 11:26:50,683 INFO  L138     BoogieDeclarations]: Found implementation of procedure tx_poll_start
[2022-11-16 11:26:50,683 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_queue
[2022-11-16 11:26:50,683 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_queue
[2022-11-16 11:26:50,685 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_rx
[2022-11-16 11:26:50,685 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_rx
[2022-11-16 11:26:50,685 INFO  L130     BoogieDeclarations]: Found specification of procedure handle_tx_kick
[2022-11-16 11:26:50,685 INFO  L138     BoogieDeclarations]: Found implementation of procedure handle_tx_kick
[2022-11-16 11:26:50,686 INFO  L130     BoogieDeclarations]: Found specification of procedure mutex_lock
[2022-11-16 11:26:50,686 INFO  L138     BoogieDeclarations]: Found implementation of procedure mutex_lock
[2022-11-16 11:26:50,687 INFO  L130     BoogieDeclarations]: Found specification of procedure spinlock_check
[2022-11-16 11:26:50,688 INFO  L138     BoogieDeclarations]: Found implementation of procedure spinlock_check
[2022-11-16 11:26:50,688 INFO  L130     BoogieDeclarations]: Found specification of procedure ERR_PTR
[2022-11-16 11:26:50,688 INFO  L138     BoogieDeclarations]: Found implementation of procedure ERR_PTR
[2022-11-16 11:26:50,689 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_fget
[2022-11-16 11:26:50,689 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_fget
[2022-11-16 11:26:50,689 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_init
[2022-11-16 11:26:50,689 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_init
[2022-11-16 11:26:50,690 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-16 11:26:50,691 INFO  L130     BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD
[2022-11-16 11:26:50,692 INFO  L138     BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD
[2022-11-16 11:26:50,692 INFO  L130     BoogieDeclarations]: Found specification of procedure vq_memory_access_ok
[2022-11-16 11:26:50,692 INFO  L138     BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok
[2022-11-16 11:26:50,693 INFO  L130     BoogieDeclarations]: Found specification of procedure move_iovec_hdr
[2022-11-16 11:26:50,693 INFO  L138     BoogieDeclarations]: Found implementation of procedure move_iovec_hdr
[2022-11-16 11:26:50,693 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2022-11-16 11:26:50,693 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore
[2022-11-16 11:26:50,694 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore
[2022-11-16 11:26:50,694 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_queue
[2022-11-16 11:26:50,694 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_queue
[2022-11-16 11:26:50,694 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_stop
[2022-11-16 11:26:50,694 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_stop
[2022-11-16 11:26:50,695 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE8
[2022-11-16 11:26:50,695 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE1
[2022-11-16 11:26:50,696 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE2
[2022-11-16 11:26:50,696 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-16 11:26:50,697 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2022-11-16 11:26:50,697 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2022-11-16 11:26:50,697 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup
[2022-11-16 11:26:50,697 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup
[2022-11-16 11:26:50,698 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_zerocopy_callback
[2022-11-16 11:26:50,699 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_callback
[2022-11-16 11:26:50,699 INFO  L130     BoogieDeclarations]: Found specification of procedure might_fault
[2022-11-16 11:26:50,700 INFO  L138     BoogieDeclarations]: Found implementation of procedure might_fault
[2022-11-16 11:26:50,701 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2
[2022-11-16 11:26:50,701 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_flush_vq
[2022-11-16 11:26:50,701 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_flush_vq
[2022-11-16 11:26:50,701 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-11-16 11:26:50,702 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4
[2022-11-16 11:26:50,702 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_stop_vq
[2022-11-16 11:26:50,702 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_stop_vq
[2022-11-16 11:26:50,702 INFO  L130     BoogieDeclarations]: Found specification of procedure __mutex_init
[2022-11-16 11:26:50,702 INFO  L138     BoogieDeclarations]: Found implementation of procedure __mutex_init
[2022-11-16 11:26:50,703 INFO  L130     BoogieDeclarations]: Found specification of procedure kmalloc
[2022-11-16 11:26:50,703 INFO  L138     BoogieDeclarations]: Found implementation of procedure kmalloc
[2022-11-16 11:26:50,704 INFO  L130     BoogieDeclarations]: Found specification of procedure fput
[2022-11-16 11:26:50,704 INFO  L138     BoogieDeclarations]: Found implementation of procedure fput
[2022-11-16 11:26:50,704 INFO  L130     BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave
[2022-11-16 11:26:50,704 INFO  L138     BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave
[2022-11-16 11:26:50,705 INFO  L130     BoogieDeclarations]: Found specification of procedure next_desc
[2022-11-16 11:26:50,705 INFO  L138     BoogieDeclarations]: Found implementation of procedure next_desc
[2022-11-16 11:26:50,706 INFO  L130     BoogieDeclarations]: Found specification of procedure iov_length
[2022-11-16 11:26:50,707 INFO  L138     BoogieDeclarations]: Found implementation of procedure iov_length
[2022-11-16 11:26:50,710 INFO  L130     BoogieDeclarations]: Found specification of procedure tx_poll_stop
[2022-11-16 11:26:50,710 INFO  L138     BoogieDeclarations]: Found implementation of procedure tx_poll_stop
[2022-11-16 11:26:50,711 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_handler_precall
[2022-11-16 11:26:50,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_handler_precall
[2022-11-16 11:26:50,711 INFO  L130     BoogieDeclarations]: Found specification of procedure schedule
[2022-11-16 11:26:50,713 INFO  L138     BoogieDeclarations]: Found implementation of procedure schedule
[2022-11-16 11:26:50,715 INFO  L130     BoogieDeclarations]: Found specification of procedure _copy_from_user
[2022-11-16 11:26:50,715 INFO  L138     BoogieDeclarations]: Found implementation of procedure _copy_from_user
[2022-11-16 11:26:50,715 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_has_feature
[2022-11-16 11:26:50,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_has_feature
[2022-11-16 11:26:50,721 INFO  L130     BoogieDeclarations]: Found specification of procedure list_empty
[2022-11-16 11:26:50,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure list_empty
[2022-11-16 11:26:50,721 INFO  L130     BoogieDeclarations]: Found specification of procedure __rcu_read_lock
[2022-11-16 11:26:50,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __rcu_read_lock
[2022-11-16 11:26:50,721 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_init
[2022-11-16 11:26:50,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_init
[2022-11-16 11:26:50,722 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget
[2022-11-16 11:26:50,722 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget
[2022-11-16 11:26:50,722 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_flush
[2022-11-16 11:26:50,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_flush
[2022-11-16 11:26:50,723 INFO  L130     BoogieDeclarations]: Found specification of procedure rcu_read_lock_held
[2022-11-16 11:26:50,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held
[2022-11-16 11:26:50,723 INFO  L130     BoogieDeclarations]: Found specification of procedure kfree
[2022-11-16 11:26:50,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure kfree
[2022-11-16 11:26:50,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __get_user_bad
[2022-11-16 11:26:50,724 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_ubuf_put
[2022-11-16 11:26:50,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put
[2022-11-16 11:26:50,724 INFO  L130     BoogieDeclarations]: Found specification of procedure copy_to_user
[2022-11-16 11:26:50,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure copy_to_user
[2022-11-16 11:26:50,725 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex
[2022-11-16 11:26:50,725 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex
[2022-11-16 11:26:50,725 INFO  L130     BoogieDeclarations]: Found specification of procedure __rcu_read_unlock
[2022-11-16 11:26:50,725 INFO  L138     BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock
[2022-11-16 11:26:50,726 INFO  L130     BoogieDeclarations]: Found specification of procedure translate_desc
[2022-11-16 11:26:50,726 INFO  L138     BoogieDeclarations]: Found implementation of procedure translate_desc
[2022-11-16 11:26:50,726 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_ctx_put
[2022-11-16 11:26:50,726 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put
[2022-11-16 11:26:50,726 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_ioctl
[2022-11-16 11:26:50,727 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_ioctl
[2022-11-16 11:26:50,727 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_net_disable_vq
[2022-11-16 11:26:50,727 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_net_disable_vq
[2022-11-16 11:26:50,727 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4
[2022-11-16 11:26:50,727 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2
[2022-11-16 11:26:50,728 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1
[2022-11-16 11:26:50,728 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8
[2022-11-16 11:26:50,728 INFO  L130     BoogieDeclarations]: Found specification of procedure mmput
[2022-11-16 11:26:50,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure mmput
[2022-11-16 11:26:50,728 INFO  L130     BoogieDeclarations]: Found specification of procedure kref_put
[2022-11-16 11:26:50,729 INFO  L138     BoogieDeclarations]: Found implementation of procedure kref_put
[2022-11-16 11:26:50,729 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_unlock_irq
[2022-11-16 11:26:50,729 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_unlock_irq
[2022-11-16 11:26:50,729 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv__builtin_expect
[2022-11-16 11:26:50,730 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect
[2022-11-16 11:26:50,730 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_ubuf_put_and_wait
[2022-11-16 11:26:50,730 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put_and_wait
[2022-11-16 11:26:50,731 INFO  L130     BoogieDeclarations]: Found specification of procedure copy_user_generic
[2022-11-16 11:26:50,731 INFO  L138     BoogieDeclarations]: Found implementation of procedure copy_user_generic
[2022-11-16 11:26:50,731 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-11-16 11:26:50,731 INFO  L130     BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle
[2022-11-16 11:26:50,732 INFO  L138     BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle
[2022-11-16 11:26:50,732 INFO  L130     BoogieDeclarations]: Found specification of procedure copy_from_user
[2022-11-16 11:26:50,732 INFO  L138     BoogieDeclarations]: Found implementation of procedure copy_from_user
[2022-11-16 11:26:50,732 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_get_vq_desc
[2022-11-16 11:26:50,732 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_get_vq_desc
[2022-11-16 11:26:50,733 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-16 11:26:50,733 INFO  L130     BoogieDeclarations]: Found specification of procedure eventfd_signal
[2022-11-16 11:26:50,733 INFO  L138     BoogieDeclarations]: Found implementation of procedure eventfd_signal
[2022-11-16 11:26:50,733 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_enable_notify
[2022-11-16 11:26:50,734 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_enable_notify
[2022-11-16 11:26:50,735 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_stop
[2022-11-16 11:26:50,735 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_stop
[2022-11-16 11:26:50,735 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2022-11-16 11:26:50,735 INFO  L130     BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious
[2022-11-16 11:26:50,737 INFO  L138     BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious
[2022-11-16 11:26:50,738 INFO  L130     BoogieDeclarations]: Found specification of procedure __bad_percpu_size
[2022-11-16 11:26:50,738 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8
[2022-11-16 11:26:50,738 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2
[2022-11-16 11:26:50,738 INFO  L130     BoogieDeclarations]: Found specification of procedure kthread_stop
[2022-11-16 11:26:50,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure kthread_stop
[2022-11-16 11:26:50,739 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID
[2022-11-16 11:26:50,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID
[2022-11-16 11:26:50,739 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4
[2022-11-16 11:26:50,739 INFO  L130     BoogieDeclarations]: Found specification of procedure memory_access_ok
[2022-11-16 11:26:50,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure memory_access_ok
[2022-11-16 11:26:50,740 INFO  L130     BoogieDeclarations]: Found specification of procedure spin_lock_irq
[2022-11-16 11:26:50,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure spin_lock_irq
[2022-11-16 11:26:50,740 INFO  L130     BoogieDeclarations]: Found specification of procedure current_thread_info
[2022-11-16 11:26:50,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure current_thread_info
[2022-11-16 11:26:50,741 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_work_seq_done
[2022-11-16 11:26:50,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done
[2022-11-16 11:26:50,741 INFO  L130     BoogieDeclarations]: Found specification of procedure __wake_up
[2022-11-16 11:26:50,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure __wake_up
[2022-11-16 11:26:50,741 INFO  L130     BoogieDeclarations]: Found specification of procedure PTR_ERR
[2022-11-16 11:26:50,742 INFO  L138     BoogieDeclarations]: Found implementation of procedure PTR_ERR
[2022-11-16 11:26:50,742 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_disable_notify
[2022-11-16 11:26:50,742 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_disable_notify
[2022-11-16 11:26:50,742 INFO  L130     BoogieDeclarations]: Found specification of procedure prepare_to_wait
[2022-11-16 11:26:50,742 INFO  L138     BoogieDeclarations]: Found implementation of procedure prepare_to_wait
[2022-11-16 11:26:50,743 INFO  L130     BoogieDeclarations]: Found specification of procedure warn_slowpath_null
[2022-11-16 11:26:50,743 INFO  L138     BoogieDeclarations]: Found implementation of procedure warn_slowpath_null
[2022-11-16 11:26:50,743 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_update_used_flags
[2022-11-16 11:26:50,743 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags
[2022-11-16 11:26:50,743 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_discard_vq_desc
[2022-11-16 11:26:50,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_discard_vq_desc
[2022-11-16 11:26:50,744 INFO  L130     BoogieDeclarations]: Found specification of procedure lock_is_held
[2022-11-16 11:26:50,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure lock_is_held
[2022-11-16 11:26:50,744 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_flush
[2022-11-16 11:26:50,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_flush
[2022-11-16 11:26:50,745 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex
[2022-11-16 11:26:50,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex
[2022-11-16 11:26:50,745 INFO  L130     BoogieDeclarations]: Found specification of procedure log_access_ok
[2022-11-16 11:26:50,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure log_access_ok
[2022-11-16 11:26:50,745 INFO  L130     BoogieDeclarations]: Found specification of procedure __init_waitqueue_head
[2022-11-16 11:26:50,746 INFO  L138     BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head
[2022-11-16 11:26:50,746 INFO  L130     BoogieDeclarations]: Found specification of procedure set_bit
[2022-11-16 11:26:50,746 INFO  L138     BoogieDeclarations]: Found implementation of procedure set_bit
[2022-11-16 11:26:50,746 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_signal
[2022-11-16 11:26:50,746 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_signal
[2022-11-16 11:26:50,747 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1
[2022-11-16 11:26:50,747 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_zerocopy_signal_used
[2022-11-16 11:26:50,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_signal_used
[2022-11-16 11:26:50,747 INFO  L130     BoogieDeclarations]: Found specification of procedure vhost_poll_start
[2022-11-16 11:26:50,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure vhost_poll_start
[2022-11-16 11:26:50,748 INFO  L130     BoogieDeclarations]: Found specification of procedure finish_wait
[2022-11-16 11:26:50,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure finish_wait
[2022-11-16 11:26:50,748 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-16 11:26:50,750 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-16 11:26:50,754 INFO  L130     BoogieDeclarations]: Found specification of procedure IS_ERR
[2022-11-16 11:26:50,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure IS_ERR
[2022-11-16 11:26:52,144 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-16 11:26:52,155 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-16 11:27:20,556 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
[2022-11-16 11:27:20,557 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;
[2022-11-16 11:27:20,557 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
[2022-11-16 11:27:20,557 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;
[2022-11-16 11:27:20,557 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume __copy_to_user_#t~switch137#1;
[2022-11-16 11:27:20,558 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume !__copy_to_user_#t~switch137#1;
[2022-11-16 11:27:20,558 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;
[2022-11-16 11:27:20,558 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;
[2022-11-16 11:27:20,558 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume __copy_to_user_#t~switch137#1;
[2022-11-16 11:27:20,558 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := true;
[2022-11-16 11:27:20,558 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5825: havoc __copy_to_user_#t~switch137#1;
[2022-11-16 11:27:20,559 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;
[2022-11-16 11:27:20,559 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;
[2022-11-16 11:27:20,559 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume __copy_to_user_#t~switch137#1;
[2022-11-16 11:27:20,559 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;
[2022-11-16 11:27:20,559 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;
[2022-11-16 11:27:20,560 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;
[2022-11-16 11:27:20,560 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
[2022-11-16 11:27:20,560 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;
[2022-11-16 11:27:20,560 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;
[2022-11-16 11:27:20,560 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];
[2022-11-16 11:27:20,560 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;
[2022-11-16 11:27:20,561 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;
[2022-11-16 11:27:20,561 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;
[2022-11-16 11:27:20,561 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;
[2022-11-16 11:27:41,667 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
[2022-11-16 11:27:41,667 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;
[2022-11-16 11:27:41,667 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;
[2022-11-16 11:27:41,668 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;
[2022-11-16 11:27:41,668 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5760: havoc __copy_from_user_#t~switch132#1;
[2022-11-16 11:27:41,668 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume __copy_from_user_#t~switch132#1;
[2022-11-16 11:27:41,668 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := true;
[2022-11-16 11:27:41,669 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
[2022-11-16 11:27:41,669 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;
[2022-11-16 11:27:41,669 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;
[2022-11-16 11:27:41,669 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;
[2022-11-16 11:27:41,670 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;
[2022-11-16 11:27:41,670 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;
[2022-11-16 11:27:41,670 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;
[2022-11-16 11:27:41,670 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;
[2022-11-16 11:27:41,671 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;
[2022-11-16 11:27:41,671 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;
[2022-11-16 11:27:41,671 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume __copy_from_user_#t~switch132#1;
[2022-11-16 11:27:41,671 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume !__copy_from_user_#t~switch132#1;
[2022-11-16 11:27:41,672 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];
[2022-11-16 11:27:41,672 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
[2022-11-16 11:27:41,672 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;
[2022-11-16 11:27:41,672 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;
[2022-11-16 11:27:41,672 INFO  L769   $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume __copy_from_user_#t~switch132#1;
[2022-11-16 11:27:41,673 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;
[2022-11-16 11:27:52,332 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-16 11:27:52,363 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-16 11:27:52,363 INFO  L300             CfgBuilder]: Removed 0 assume(true) statements.
[2022-11-16 11:27:52,369 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:52 BoogieIcfgContainer
[2022-11-16 11:27:52,369 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-16 11:27:52,371 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-16 11:27:52,372 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-16 11:27:52,375 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-16 11:27:52,376 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:26:45" (1/3) ...
[2022-11-16 11:27:52,377 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f783dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:52, skipping insertion in model container
[2022-11-16 11:27:52,377 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:49" (2/3) ...
[2022-11-16 11:27:52,377 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f783dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:52, skipping insertion in model container
[2022-11-16 11:27:52,378 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:52" (3/3) ...
[2022-11-16 11:27:52,379 INFO  L112   eAbstractionObserver]: Analyzing ICFG main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i
[2022-11-16 11:27:52,404 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-16 11:27:52,404 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-16 11:27:52,542 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-16 11:27:52,555 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;@36b83ed8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-16 11:27:52,556 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-16 11:27:52,571 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2200 states, 1522 states have (on average 1.3442838370565047) internal successors, (2046), 1568 states have internal predecessors, (2046), 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)
[2022-11-16 11:27:52,579 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-16 11:27:52,580 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:27:52,580 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 11:27:52,581 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:27:52,586 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:27:52,586 INFO  L85        PathProgramCache]: Analyzing trace with hash -1066115318, now seen corresponding path program 1 times
[2022-11-16 11:27:52,602 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-16 11:27:52,602 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097917532]
[2022-11-16 11:27:52,603 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:27:52,603 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:27:52,604 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat
[2022-11-16 11:27:52,605 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-16 11:27:52,609 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-11-16 11:27:53,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:27:53,630 INFO  L263         TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-16 11:27:53,635 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-16 11:27:53,921 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 11:27:53,921 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-16 11:27:53,922 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-16 11:27:53,922 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097917532]
[2022-11-16 11:27:53,923 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097917532] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:27:53,923 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:27:53,923 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 11:27:53,925 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876032028]
[2022-11-16 11:27:53,926 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:27:53,932 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 11:27:53,932 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-16 11:27:53,995 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 11:27:53,996 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:27:54,018 INFO  L87              Difference]: Start difference. First operand  has 2200 states, 1522 states have (on average 1.3442838370565047) internal successors, (2046), 1568 states have internal predecessors, (2046), 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)
[2022-11-16 11:27:54,575 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:27:54,576 INFO  L93              Difference]: Finished difference Result 4386 states and 6444 transitions.
[2022-11-16 11:27:54,577 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 11:27:54,579 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
[2022-11-16 11:27:54,580 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:27:54,620 INFO  L225             Difference]: With dead ends: 4386
[2022-11-16 11:27:54,621 INFO  L226             Difference]: Without dead ends: 2189
[2022-11-16 11:27:54,642 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
[2022-11-16 11:27:54,647 INFO  L413           NwaCegarLoop]: 3178 mSDtfsCounter, 3166 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 3178 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-16 11:27:54,648 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3166 Valid, 3178 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-16 11:27:54,676 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2189 states.
[2022-11-16 11:27:54,946 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2189.
[2022-11-16 11:27:54,955 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2189 states, 1514 states have (on average 1.3408190224570673) internal successors, (2030), 1557 states have internal predecessors, (2030), 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)
[2022-11-16 11:27:54,980 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 3167 transitions.
[2022-11-16 11:27:54,984 INFO  L78                 Accepts]: Start accepts. Automaton has 2189 states and 3167 transitions. Word has length 16
[2022-11-16 11:27:54,987 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:27:54,987 INFO  L495      AbstractCegarLoop]: Abstraction has 2189 states and 3167 transitions.
[2022-11-16 11:27:54,988 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)
[2022-11-16 11:27:54,989 INFO  L276                IsEmpty]: Start isEmpty. Operand 2189 states and 3167 transitions.
[2022-11-16 11:27:54,990 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2022-11-16 11:27:54,990 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:27:54,990 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 11:27:55,010 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2022-11-16 11:27:55,209 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:27:55,210 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:27:55,210 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:27:55,210 INFO  L85        PathProgramCache]: Analyzing trace with hash 1309145204, now seen corresponding path program 1 times
[2022-11-16 11:27:55,211 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-16 11:27:55,212 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33506731]
[2022-11-16 11:27:55,212 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:27:55,212 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:27:55,212 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat
[2022-11-16 11:27:55,214 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-16 11:27:55,227 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2022-11-16 11:27:56,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:27:56,136 INFO  L263         TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-16 11:27:56,138 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-16 11:27:56,321 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 11:27:56,321 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-16 11:27:56,321 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-16 11:27:56,322 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33506731]
[2022-11-16 11:27:56,322 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [33506731] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:27:56,322 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:27:56,322 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 11:27:56,323 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799919471]
[2022-11-16 11:27:56,323 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:27:56,325 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 11:27:56,325 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-16 11:27:56,326 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 11:27:56,326 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:27:56,326 INFO  L87              Difference]: Start difference. First operand 2189 states and 3167 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)
[2022-11-16 11:27:56,687 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:27:56,688 INFO  L93              Difference]: Finished difference Result 2191 states and 3168 transitions.
[2022-11-16 11:27:56,688 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 11:27:56,688 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
[2022-11-16 11:27:56,689 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:27:56,705 INFO  L225             Difference]: With dead ends: 2191
[2022-11-16 11:27:56,705 INFO  L226             Difference]: Without dead ends: 2188
[2022-11-16 11:27:56,708 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
[2022-11-16 11:27:56,709 INFO  L413           NwaCegarLoop]: 3164 mSDtfsCounter, 3151 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3151 SdHoareTripleChecker+Valid, 3164 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
[2022-11-16 11:27:56,710 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3151 Valid, 3164 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-16 11:27:56,717 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2188 states.
[2022-11-16 11:27:56,880 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2188.
[2022-11-16 11:27:56,885 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2188 states, 1514 states have (on average 1.3401585204755615) internal successors, (2029), 1556 states have internal predecessors, (2029), 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)
[2022-11-16 11:27:56,906 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2188 states to 2188 states and 3165 transitions.
[2022-11-16 11:27:56,907 INFO  L78                 Accepts]: Start accepts. Automaton has 2188 states and 3165 transitions. Word has length 17
[2022-11-16 11:27:56,907 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:27:56,907 INFO  L495      AbstractCegarLoop]: Abstraction has 2188 states and 3165 transitions.
[2022-11-16 11:27:56,907 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)
[2022-11-16 11:27:56,908 INFO  L276                IsEmpty]: Start isEmpty. Operand 2188 states and 3165 transitions.
[2022-11-16 11:27:56,909 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-11-16 11:27:56,909 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:27:56,909 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 11:27:56,927 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2022-11-16 11:27:57,125 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:27:57,125 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:27:57,126 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:27:57,126 INFO  L85        PathProgramCache]: Analyzing trace with hash 1927782221, now seen corresponding path program 1 times
[2022-11-16 11:27:57,127 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-16 11:27:57,127 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115709143]
[2022-11-16 11:27:57,127 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:27:57,127 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:27:57,128 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat
[2022-11-16 11:27:57,130 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-16 11:27:57,179 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2022-11-16 11:27:57,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:27:57,970 INFO  L263         TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-16 11:27:57,971 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-16 11:27:58,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 11:27:58,159 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-16 11:27:58,159 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-16 11:27:58,160 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115709143]
[2022-11-16 11:27:58,160 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115709143] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:27:58,160 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:27:58,160 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 11:27:58,160 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92512619]
[2022-11-16 11:27:58,160 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:27:58,161 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 11:27:58,161 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-16 11:27:58,161 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 11:27:58,162 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:27:58,162 INFO  L87              Difference]: Start difference. First operand 2188 states and 3165 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)
[2022-11-16 11:27:58,521 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:27:58,522 INFO  L93              Difference]: Finished difference Result 2190 states and 3166 transitions.
[2022-11-16 11:27:58,522 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 11:27:58,523 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
[2022-11-16 11:27:58,523 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:27:58,538 INFO  L225             Difference]: With dead ends: 2190
[2022-11-16 11:27:58,539 INFO  L226             Difference]: Without dead ends: 2187
[2022-11-16 11:27:58,541 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
[2022-11-16 11:27:58,545 INFO  L413           NwaCegarLoop]: 3162 mSDtfsCounter, 3148 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3148 SdHoareTripleChecker+Valid, 3162 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
[2022-11-16 11:27:58,547 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3148 Valid, 3162 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-16 11:27:58,552 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2187 states.
[2022-11-16 11:27:58,722 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2187.
[2022-11-16 11:27:58,727 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2187 states, 1514 states have (on average 1.3394980184940555) internal successors, (2028), 1555 states have internal predecessors, (2028), 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)
[2022-11-16 11:27:58,746 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3163 transitions.
[2022-11-16 11:27:58,746 INFO  L78                 Accepts]: Start accepts. Automaton has 2187 states and 3163 transitions. Word has length 18
[2022-11-16 11:27:58,746 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:27:58,747 INFO  L495      AbstractCegarLoop]: Abstraction has 2187 states and 3163 transitions.
[2022-11-16 11:27:58,747 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)
[2022-11-16 11:27:58,747 INFO  L276                IsEmpty]: Start isEmpty. Operand 2187 states and 3163 transitions.
[2022-11-16 11:27:58,748 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2022-11-16 11:27:58,748 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:27:58,748 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 11:27:58,772 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2022-11-16 11:27:58,963 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:27:58,963 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:27:58,964 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:27:58,964 INFO  L85        PathProgramCache]: Analyzing trace with hash -369301865, now seen corresponding path program 1 times
[2022-11-16 11:27:58,964 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-16 11:27:58,965 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995712902]
[2022-11-16 11:27:58,965 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:27:58,965 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:27:58,965 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat
[2022-11-16 11:27:58,966 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-16 11:27:58,971 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2022-11-16 11:27:59,646 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:27:59,655 INFO  L263         TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-16 11:27:59,656 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-16 11:27:59,851 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 11:27:59,851 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-16 11:27:59,851 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-16 11:27:59,852 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995712902]
[2022-11-16 11:27:59,852 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [995712902] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:27:59,852 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:27:59,852 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 11:27:59,853 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630841533]
[2022-11-16 11:27:59,853 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:27:59,853 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 11:27:59,853 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-16 11:27:59,854 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 11:27:59,854 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:27:59,854 INFO  L87              Difference]: Start difference. First operand 2187 states and 3163 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)
[2022-11-16 11:28:00,375 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:28:00,375 INFO  L93              Difference]: Finished difference Result 4958 states and 7106 transitions.
[2022-11-16 11:28:00,375 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 11:28:00,376 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
[2022-11-16 11:28:00,376 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:28:00,400 INFO  L225             Difference]: With dead ends: 4958
[2022-11-16 11:28:00,400 INFO  L226             Difference]: Without dead ends: 2773
[2022-11-16 11:28:00,416 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
[2022-11-16 11:28:00,422 INFO  L413           NwaCegarLoop]: 3554 mSDtfsCounter, 1198 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 6256 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
[2022-11-16 11:28:00,423 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 6256 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-16 11:28:00,431 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2773 states.
[2022-11-16 11:28:00,679 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2770.
[2022-11-16 11:28:00,686 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2770 states, 1912 states have (on average 1.3216527196652719) internal successors, (2527), 1972 states have internal predecessors, (2527), 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)
[2022-11-16 11:28:00,709 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3908 transitions.
[2022-11-16 11:28:00,710 INFO  L78                 Accepts]: Start accepts. Automaton has 2770 states and 3908 transitions. Word has length 19
[2022-11-16 11:28:00,710 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:28:00,711 INFO  L495      AbstractCegarLoop]: Abstraction has 2770 states and 3908 transitions.
[2022-11-16 11:28:00,711 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)
[2022-11-16 11:28:00,712 INFO  L276                IsEmpty]: Start isEmpty. Operand 2770 states and 3908 transitions.
[2022-11-16 11:28:00,728 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2022-11-16 11:28:00,728 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:28:00,729 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]
[2022-11-16 11:28:00,753 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2022-11-16 11:28:00,943 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:28:00,943 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:28:00,943 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:28:00,944 INFO  L85        PathProgramCache]: Analyzing trace with hash 393489938, now seen corresponding path program 1 times
[2022-11-16 11:28:00,945 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-16 11:28:00,945 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70647347]
[2022-11-16 11:28:00,945 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:28:00,945 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:28:00,946 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat
[2022-11-16 11:28:00,947 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-16 11:28:00,954 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2022-11-16 11:28:01,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:28:01,784 INFO  L263         TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-16 11:28:01,787 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-16 11:28:01,993 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-16 11:28:01,993 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-16 11:28:01,994 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-16 11:28:01,994 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [70647347]
[2022-11-16 11:28:01,994 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [70647347] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:28:01,994 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:28:01,995 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 11:28:01,995 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125892190]
[2022-11-16 11:28:01,995 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:28:01,996 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 11:28:01,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-16 11:28:01,996 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 11:28:01,996 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:28:01,997 INFO  L87              Difference]: Start difference. First operand 2770 states and 3908 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)
[2022-11-16 11:28:02,368 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:28:02,368 INFO  L93              Difference]: Finished difference Result 5549 states and 7834 transitions.
[2022-11-16 11:28:02,369 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 11:28:02,369 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
[2022-11-16 11:28:02,369 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:28:02,390 INFO  L225             Difference]: With dead ends: 5549
[2022-11-16 11:28:02,390 INFO  L226             Difference]: Without dead ends: 2790
[2022-11-16 11:28:02,407 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
[2022-11-16 11:28:02,408 INFO  L413           NwaCegarLoop]: 3145 mSDtfsCounter, 43 mSDsluCounter, 3091 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 6236 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
[2022-11-16 11:28:02,409 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 6236 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-16 11:28:02,415 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2790 states.
[2022-11-16 11:28:02,705 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 2790.
[2022-11-16 11:28:02,714 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2790 states, 1928 states have (on average 1.3215767634854771) internal successors, (2548), 1988 states have internal predecessors, (2548), 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)
[2022-11-16 11:28:02,744 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3937 transitions.
[2022-11-16 11:28:02,745 INFO  L78                 Accepts]: Start accepts. Automaton has 2790 states and 3937 transitions. Word has length 55
[2022-11-16 11:28:02,746 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:28:02,746 INFO  L495      AbstractCegarLoop]: Abstraction has 2790 states and 3937 transitions.
[2022-11-16 11:28:02,746 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)
[2022-11-16 11:28:02,747 INFO  L276                IsEmpty]: Start isEmpty. Operand 2790 states and 3937 transitions.
[2022-11-16 11:28:02,749 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2022-11-16 11:28:02,749 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:28:02,749 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]
[2022-11-16 11:28:02,782 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2022-11-16 11:28:02,971 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:28:02,972 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:28:02,972 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:28:02,972 INFO  L85        PathProgramCache]: Analyzing trace with hash -742912640, now seen corresponding path program 1 times
[2022-11-16 11:28:02,973 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-16 11:28:02,974 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370045673]
[2022-11-16 11:28:02,974 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:28:02,974 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:28:02,974 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat
[2022-11-16 11:28:02,976 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-16 11:28:03,023 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2022-11-16 11:28:03,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:28:03,888 INFO  L263         TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-16 11:28:03,890 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-16 11:28:03,933 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-16 11:28:03,933 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-16 11:28:03,934 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-16 11:28:03,934 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370045673]
[2022-11-16 11:28:03,934 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [370045673] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:28:03,934 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:28:03,934 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 11:28:03,935 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844707595]
[2022-11-16 11:28:03,935 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:28:03,935 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 11:28:03,935 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-16 11:28:03,936 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 11:28:03,936 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:28:03,936 INFO  L87              Difference]: Start difference. First operand 2790 states and 3937 transitions. Second operand  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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)
[2022-11-16 11:28:04,297 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:28:04,297 INFO  L93              Difference]: Finished difference Result 5571 states and 7929 transitions.
[2022-11-16 11:28:04,299 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 11:28:04,299 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 57
[2022-11-16 11:28:04,300 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:28:04,321 INFO  L225             Difference]: With dead ends: 5571
[2022-11-16 11:28:04,322 INFO  L226             Difference]: Without dead ends: 2792
[2022-11-16 11:28:04,380 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:28:04,384 INFO  L413           NwaCegarLoop]: 3140 mSDtfsCounter, 0 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6273 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-16 11:28:04,385 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6273 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-16 11:28:04,390 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2792 states.
[2022-11-16 11:28:04,631 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2790.
[2022-11-16 11:28:04,648 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2790 states, 1928 states have (on average 1.3184647302904564) internal successors, (2542), 1988 states have internal predecessors, (2542), 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)
[2022-11-16 11:28:04,678 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3931 transitions.
[2022-11-16 11:28:04,679 INFO  L78                 Accepts]: Start accepts. Automaton has 2790 states and 3931 transitions. Word has length 57
[2022-11-16 11:28:04,681 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:28:04,681 INFO  L495      AbstractCegarLoop]: Abstraction has 2790 states and 3931 transitions.
[2022-11-16 11:28:04,682 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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)
[2022-11-16 11:28:04,683 INFO  L276                IsEmpty]: Start isEmpty. Operand 2790 states and 3931 transitions.
[2022-11-16 11:28:04,686 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2022-11-16 11:28:04,686 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:28:04,687 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]
[2022-11-16 11:28:04,713 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2022-11-16 11:28:04,903 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:28:04,903 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:28:04,903 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:28:04,903 INFO  L85        PathProgramCache]: Analyzing trace with hash -64168537, now seen corresponding path program 1 times
[2022-11-16 11:28:04,905 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-16 11:28:04,905 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068939174]
[2022-11-16 11:28:04,905 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:28:04,905 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:28:04,905 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat
[2022-11-16 11:28:04,908 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-16 11:28:04,951 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2022-11-16 11:28:05,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-16 11:28:05,835 INFO  L263         TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-16 11:28:05,838 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-16 11:28:06,174 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-16 11:28:06,175 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-16 11:28:06,175 INFO  L136   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-16 11:28:06,175 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068939174]
[2022-11-16 11:28:06,175 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068939174] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-16 11:28:06,175 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-16 11:28:06,175 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-16 11:28:06,176 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756341183]
[2022-11-16 11:28:06,176 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-16 11:28:06,176 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-16 11:28:06,176 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-16 11:28:06,177 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-16 11:28:06,177 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:28:06,177 INFO  L87              Difference]: Start difference. First operand 2790 states and 3931 transitions. Second operand  has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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)
[2022-11-16 11:28:06,577 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-16 11:28:06,577 INFO  L93              Difference]: Finished difference Result 4594 states and 6423 transitions.
[2022-11-16 11:28:06,578 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-16 11:28:06,578 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 63
[2022-11-16 11:28:06,579 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-16 11:28:06,597 INFO  L225             Difference]: With dead ends: 4594
[2022-11-16 11:28:06,597 INFO  L226             Difference]: Without dead ends: 2316
[2022-11-16 11:28:06,612 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-16 11:28:06,614 INFO  L413           NwaCegarLoop]: 3045 mSDtfsCounter, 2130 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2130 SdHoareTripleChecker+Valid, 4044 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
[2022-11-16 11:28:06,614 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2130 Valid, 4044 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-16 11:28:06,620 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2316 states.
[2022-11-16 11:28:06,839 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2316.
[2022-11-16 11:28:06,843 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2316 states, 1607 states have (on average 1.3067828251400124) internal successors, (2100), 1652 states have internal predecessors, (2100), 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)
[2022-11-16 11:28:06,857 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 3189 transitions.
[2022-11-16 11:28:06,859 INFO  L78                 Accepts]: Start accepts. Automaton has 2316 states and 3189 transitions. Word has length 63
[2022-11-16 11:28:06,859 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-16 11:28:06,859 INFO  L495      AbstractCegarLoop]: Abstraction has 2316 states and 3189 transitions.
[2022-11-16 11:28:06,860 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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)
[2022-11-16 11:28:06,860 INFO  L276                IsEmpty]: Start isEmpty. Operand 2316 states and 3189 transitions.
[2022-11-16 11:28:06,864 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2022-11-16 11:28:06,864 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-16 11:28:06,864 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]
[2022-11-16 11:28:06,890 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2022-11-16 11:28:07,090 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:28:07,090 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-16 11:28:07,090 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-16 11:28:07,091 INFO  L85        PathProgramCache]: Analyzing trace with hash -1064965082, now seen corresponding path program 1 times
[2022-11-16 11:28:07,092 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-16 11:28:07,092 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138792036]
[2022-11-16 11:28:07,092 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-16 11:28:07,092 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:28:07,092 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat
[2022-11-16 11:28:07,095 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-16 11:28:07,101 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2022-11-16 11:28:16,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-16 11:28:16,397 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-16 11:28:22,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-16 11:28:23,961 INFO  L130   FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2022-11-16 11:28:23,961 INFO  L359         BasicCegarLoop]: Counterexample is feasible
[2022-11-16 11:28:23,963 INFO  L805   garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-16 11:28:23,998 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2022-11-16 11:28:24,192 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-11-16 11:28:24,197 INFO  L444         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-16 11:28:24,202 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2022-11-16 11:28:24,315 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:28:24 BoogieIcfgContainer
[2022-11-16 11:28:24,321 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-16 11:28:24,321 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-16 11:28:24,322 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2022-11-16 11:28:24,322 INFO  L275        PluginConnector]: Witness Printer initialized
[2022-11-16 11:28:24,323 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:52" (3/4) ...
[2022-11-16 11:28:24,326 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2022-11-16 11:28:24,328 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-16 11:28:24,328 INFO  L158              Benchmark]: Toolchain (without parser) took 99286.98ms. Allocated memory was 62.9MB in the beginning and 503.3MB in the end (delta: 440.4MB). Free memory was 41.8MB in the beginning and 327.6MB in the end (delta: -285.8MB). Peak memory consumption was 155.3MB. Max. memory is 16.1GB.
[2022-11-16 11:28:24,329 INFO  L158              Benchmark]: CDTParser took 0.34ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 43.7MB in the end (delta: 52.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-16 11:28:24,329 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 4702.44ms. Allocated memory was 62.9MB in the beginning and 163.6MB in the end (delta: 100.7MB). Free memory was 41.5MB in the beginning and 84.6MB in the end (delta: -43.0MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB.
[2022-11-16 11:28:24,330 INFO  L158              Benchmark]: Boogie Procedure Inliner took 387.66ms. Allocated memory was 163.6MB in the beginning and 251.7MB in the end (delta: 88.1MB). Free memory was 84.6MB in the beginning and 173.1MB in the end (delta: -88.5MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB.
[2022-11-16 11:28:24,331 INFO  L158              Benchmark]: Boogie Preprocessor took 431.79ms. Allocated memory is still 251.7MB. Free memory was 173.1MB in the beginning and 135.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB.
[2022-11-16 11:28:24,331 INFO  L158              Benchmark]: RCFGBuilder took 61800.78ms. Allocated memory was 251.7MB in the beginning and 503.3MB in the end (delta: 251.7MB). Free memory was 135.3MB in the beginning and 186.4MB in the end (delta: -51.1MB). Peak memory consumption was 203.2MB. Max. memory is 16.1GB.
[2022-11-16 11:28:24,331 INFO  L158              Benchmark]: TraceAbstraction took 31949.56ms. Allocated memory is still 503.3MB. Free memory was 185.3MB in the beginning and 328.6MB in the end (delta: -143.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-16 11:28:24,332 INFO  L158              Benchmark]: Witness Printer took 6.39ms. Allocated memory is still 503.3MB. Free memory is still 327.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-16 11:28:24,335 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.34ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 43.7MB in the end (delta: 52.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 4702.44ms. Allocated memory was 62.9MB in the beginning and 163.6MB in the end (delta: 100.7MB). Free memory was 41.5MB in the beginning and 84.6MB in the end (delta: -43.0MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 387.66ms. Allocated memory was 163.6MB in the beginning and 251.7MB in the end (delta: 88.1MB). Free memory was 84.6MB in the beginning and 173.1MB in the end (delta: -88.5MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 431.79ms. Allocated memory is still 251.7MB. Free memory was 173.1MB in the beginning and 135.3MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB.
 * RCFGBuilder took 61800.78ms. Allocated memory was 251.7MB in the beginning and 503.3MB in the end (delta: 251.7MB). Free memory was 135.3MB in the beginning and 186.4MB in the end (delta: -51.1MB). Peak memory consumption was 203.2MB. Max. memory is 16.1GB.
 * TraceAbstraction took 31949.56ms. Allocated memory is still 503.3MB. Free memory was 185.3MB in the beginning and 328.6MB in the end (delta: -143.3MB). There was no memory consumed. Max. memory is 16.1GB.
 * Witness Printer took 6.39ms. Allocated memory is still 503.3MB. Free memory is still 327.6MB. 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 ;
[L11216]                     static int ldv_mutex_mtx ;
[L9348]                      static int experimental_zcopytx ;
[L10620]                     int LDV_IN_INTERRUPT ;
[L11109]                     static int ldv_mutex_lock ;
[L11323]                     static int ldv_mutex_mutex ;
[L10594-L10595]              static struct miscdevice vhost_net_misc =
     {238, "vhost-net", & vhost_net_fops, {0, 0}, 0, 0, 0, (unsigned short)0};
[L11002]                     static int ldv_mutex_cred_guard_mutex ;
[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};
                 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, 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={139670323202:27180153062952976}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, 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={139670323202:27180153062952976}, lock={139670323202:27180153062952976}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, 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={139670323202:27180153062952976}, lock={139670323202:27180153062952976}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, 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={139670323202:27180153062952976}, ldv_func_arg1={139670323202:27180153062952976}, 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={216:0}, vhost_net_misc={215:0}, 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={139670323202:27180153062952976}, ldv_func_arg1={139670323202:27180153062952976}, 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={216:0}, vhost_net_misc={215:0}, 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={139670323202:27180153062952960}, 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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L6410]                      struct task_struct *tmp ;
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, dev={139670323202:27180153062952960}, dev={139670323202:27180153062952960}, 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L5302]                      return (pfo_ret__);
                 VAL         [\old(ldv_mutex_mutex)=1, \result={1099547279362:140737492590596}, __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__={1099547279362:140737492590596}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L6412]          RET, EXPR   get_current()
                 VAL         [\old(ldv_mutex_mutex)=1, __this_module={0:0}, dev={139670323202:27180153062952960}, dev={139670323202:27180153062952960}, experimental_zcopytx=0, get_current()={1099547279362:140737492590596}, 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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]
[L6412]                      tmp = get_current()
[L6413]          EXPR        dev->mm
[L6413]          EXPR        tmp->mm
[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={139670323202:27180153062952960}, n={139670323202:27180153062952960}, rx_sock={222:0}, tx_sock={217:0}, vhost_dev_check_owner(& n->dev)=0, vhost_net_fops={216:0}, vhost_net_misc={215:0}, 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={139670323202:27180153062952960}, n={139670323202:27180153062952960}, rx_sock={222:0}, tx_sock={217:0}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, 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={139670323202:27180153062952960}, rx_sock={222:0}, tx_sock={217:0}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, 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={139670323202:27180153062952960}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0, vq={139670323202:27180153062970376}]
[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={139670323202:27180153062970384}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, 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={139670323202:27180153062970384}, lock={139670323202:27180153062970384}, vhost_net_fops={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, 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={216:0}, vhost_net_misc={215:0}, vhost_zcopy_mask=0]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 105 procedures, 2200 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31.7s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12851 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12836 mSDsluCounter, 32313 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9925 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 22388 mSDtfsCounter, 37 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2790occurred in iteration=5, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 10.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 308 NumberOfCodeBlocks, 308 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 238 ConstructedInterpolants, 0 QuantifiedInterpolants, 429 SizeOfPredicates, 1 NumberOfNonLiveVariables, 4343 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 6/6 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
[2022-11-16 11:28:24,438 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beabe60e-099e-4b97-ad25-fd93cc0525ca/bin/uautomizer-tPACEb0tL8/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