./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 e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:21:18,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:21:18,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:21:18,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:21:18,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:21:18,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:21:18,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:21:18,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:21:18,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:21:18,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:21:18,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:21:18,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:21:18,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:21:18,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:21:18,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:21:18,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:21:18,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:21:18,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:21:18,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:21:18,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:21:18,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:21:18,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:21:18,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:21:18,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:21:18,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:21:18,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:21:18,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:21:18,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:21:18,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:21:18,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:21:18,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:21:18,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:21:18,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:21:18,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:21:18,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:21:18,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:21:18,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:21:18,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:21:18,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:21:18,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:21:18,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:21:18,527 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:21:18,559 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:21:18,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:21:18,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:21:18,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:21:18,564 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:21:18,565 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:21:18,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:21:18,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:21:18,566 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:21:18,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:21:18,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:21:18,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:21:18,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:21:18,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:21:18,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:21:18,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:21:18,567 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:21:18,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:21:18,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:21:18,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:21:18,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:21:18,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:21:18,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:21:18,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:21:18,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:21:18,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:21:18,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:21:18,575 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:21:18,575 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:21:18,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:21:18,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:21:18,576 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f [2021-12-22 14:21:18,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:21:18,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:21:18,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:21:18,845 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:21:18,845 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:21:18,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2021-12-22 14:21:18,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba7b0c902/891085086f974b51851aa9b9a325432c/FLAG288f84b4c [2021-12-22 14:21:19,715 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:21:19,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2021-12-22 14:21:19,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba7b0c902/891085086f974b51851aa9b9a325432c/FLAG288f84b4c [2021-12-22 14:21:20,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba7b0c902/891085086f974b51851aa9b9a325432c [2021-12-22 14:21:20,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:21:20,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:21:20,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:21:20,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:21:20,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:21:20,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:21:20" (1/1) ... [2021-12-22 14:21:20,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5093b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:20, skipping insertion in model container [2021-12-22 14:21:20,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:21:20" (1/1) ... [2021-12-22 14:21:20,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:21:20,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:21:22,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210] [2021-12-22 14:21:22,893 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:21:22,915 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:21:23,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210] [2021-12-22 14:21:23,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:21:23,386 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:21:23,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:23 WrapperNode [2021-12-22 14:21:23,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:21:23,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:21:23,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:21:23,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:21:23,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:23" (1/1) ... [2021-12-22 14:21:23,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:23" (1/1) ... [2021-12-22 14:21:23,689 INFO L137 Inliner]: procedures = 335, calls = 2629, calls flagged for inlining = 138, calls inlined = 130, statements flattened = 6648 [2021-12-22 14:21:23,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:21:23,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:21:23,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:21:23,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:21:23,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:23" (1/1) ... [2021-12-22 14:21:23,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:23" (1/1) ... [2021-12-22 14:21:23,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:23" (1/1) ... [2021-12-22 14:21:23,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:23" (1/1) ... [2021-12-22 14:21:23,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:23" (1/1) ... [2021-12-22 14:21:23,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:23" (1/1) ... [2021-12-22 14:21:23,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:23" (1/1) ... [2021-12-22 14:21:23,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:21:23,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:21:23,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:21:23,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:21:23,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:23" (1/1) ... [2021-12-22 14:21:23,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:21:24,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:21:24,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 14:21:24,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 14:21:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used_and_signal [2021-12-22 14:21:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used_and_signal [2021-12-22 14:21:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2021-12-22 14:21:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2021-12-22 14:21:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_net [2021-12-22 14:21:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_net [2021-12-22 14:21:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs [2021-12-22 14:21:24,064 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs [2021-12-22 14:21:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-22 14:21:24,111 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-22 14:21:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure vq_access_ok [2021-12-22 14:21:24,112 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_access_ok [2021-12-22 14:21:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:21:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_flush [2021-12-22 14:21:24,112 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_flush [2021-12-22 14:21:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:21:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2021-12-22 14:21:24,112 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2021-12-22 14:21:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_check_owner [2021-12-22 14:21:24,112 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_check_owner [2021-12-22 14:21:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure log_write [2021-12-22 14:21:24,113 INFO L138 BoogieDeclarations]: Found implementation of procedure log_write [2021-12-22 14:21:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx [2021-12-22 14:21:24,113 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx [2021-12-22 14:21:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-22 14:21:24,113 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-22 14:21:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-22 14:21:24,113 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-22 14:21:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 14:21:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 14:21:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_reset [2021-12-22 14:21:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_reset [2021-12-22 14:21:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:21:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:21:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure vq_log_access_ok [2021-12-22 14:21:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_log_access_ok [2021-12-22 14:21:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:21:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:21:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:21:24,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:21:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-12-22 14:21:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-22 14:21:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-22 14:21:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure __vhost_add_used_n [2021-12-22 14:21:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __vhost_add_used_n [2021-12-22 14:21:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_start [2021-12-22 14:21:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_start [2021-12-22 14:21:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_queue [2021-12-22 14:21:24,116 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_queue [2021-12-22 14:21:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx [2021-12-22 14:21:24,117 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx [2021-12-22 14:21:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_kick [2021-12-22 14:21:24,117 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_kick [2021-12-22 14:21:24,117 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_open [2021-12-22 14:21:24,118 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_open [2021-12-22 14:21:24,118 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 14:21:24,118 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 14:21:24,119 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:21:24,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:21:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-22 14:21:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-22 14:21:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_fget [2021-12-22 14:21:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_fget [2021-12-22 14:21:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_init [2021-12-22 14:21:24,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_init [2021-12-22 14:21:24,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:21:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:21:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:21:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure vq_memory_access_ok [2021-12-22 14:21:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok [2021-12-22 14:21:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure move_iovec_hdr [2021-12-22 14:21:24,121 INFO L138 BoogieDeclarations]: Found implementation of procedure move_iovec_hdr [2021-12-22 14:21:24,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:21:24,122 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:21:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:21:24,122 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_queue [2021-12-22 14:21:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_queue [2021-12-22 14:21:24,122 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop [2021-12-22 14:21:24,122 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop [2021-12-22 14:21:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:21:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:21:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup [2021-12-22 14:21:24,123 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup [2021-12-22 14:21:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_callback [2021-12-22 14:21:24,123 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_callback [2021-12-22 14:21:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-22 14:21:24,123 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-22 14:21:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush_vq [2021-12-22 14:21:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush_vq [2021-12-22 14:21:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop_vq [2021-12-22 14:21:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop_vq [2021-12-22 14:21:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-22 14:21:24,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-22 14:21:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-22 14:21:24,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-22 14:21:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:21:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:21:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2021-12-22 14:21:24,126 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2021-12-22 14:21:24,126 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:21:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:21:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure next_desc [2021-12-22 14:21:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure next_desc [2021-12-22 14:21:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2021-12-22 14:21:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2021-12-22 14:21:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_stop [2021-12-22 14:21:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_stop [2021-12-22 14:21:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-22 14:21:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-22 14:21:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-22 14:21:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-22 14:21:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:21:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-22 14:21:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-22 14:21:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_has_feature [2021-12-22 14:21:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_has_feature [2021-12-22 14:21:24,129 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-22 14:21:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-22 14:21:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:21:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2021-12-22 14:21:24,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2021-12-22 14:21:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:21:24,136 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_init [2021-12-22 14:21:24,137 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_init [2021-12-22 14:21:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget [2021-12-22 14:21:24,138 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget [2021-12-22 14:21:24,138 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush [2021-12-22 14:21:24,139 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush [2021-12-22 14:21:24,143 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-12-22 14:21:24,143 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-12-22 14:21:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:21:24,144 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:21:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-12-22 14:21:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put [2021-12-22 14:21:24,144 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put [2021-12-22 14:21:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:21:24,144 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-22 14:21:24,145 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-22 14:21:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2021-12-22 14:21:24,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2021-12-22 14:21:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2021-12-22 14:21:24,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2021-12-22 14:21:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure translate_desc [2021-12-22 14:21:24,145 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_desc [2021-12-22 14:21:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_put [2021-12-22 14:21:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put [2021-12-22 14:21:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_ioctl [2021-12-22 14:21:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_ioctl [2021-12-22 14:21:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_disable_vq [2021-12-22 14:21:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_disable_vq [2021-12-22 14:21:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure mmput [2021-12-22 14:21:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mmput [2021-12-22 14:21:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-22 14:21:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-22 14:21:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-22 14:21:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-22 14:21:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:21:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:21:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put_and_wait [2021-12-22 14:21:24,148 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put_and_wait [2021-12-22 14:21:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-12-22 14:21:24,148 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-12-22 14:21:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:21:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2021-12-22 14:21:24,148 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2021-12-22 14:21:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-22 14:21:24,149 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-22 14:21:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_get_vq_desc [2021-12-22 14:21:24,149 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_get_vq_desc [2021-12-22 14:21:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:21:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_signal [2021-12-22 14:21:24,149 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_signal [2021-12-22 14:21:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_enable_notify [2021-12-22 14:21:24,150 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_enable_notify [2021-12-22 14:21:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_stop [2021-12-22 14:21:24,150 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_stop [2021-12-22 14:21:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:21:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-22 14:21:24,151 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-22 14:21:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:21:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2021-12-22 14:21:24,151 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2021-12-22 14:21:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:21:24,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:21:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure memory_access_ok [2021-12-22 14:21:24,152 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_access_ok [2021-12-22 14:21:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-22 14:21:24,152 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-22 14:21:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-22 14:21:24,152 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-22 14:21:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_seq_done [2021-12-22 14:21:24,152 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done [2021-12-22 14:21:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 14:21:24,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 14:21:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_release [2021-12-22 14:21:24,154 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_release [2021-12-22 14:21:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-22 14:21:24,155 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-22 14:21:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_disable_notify [2021-12-22 14:21:24,155 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_disable_notify [2021-12-22 14:21:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-22 14:21:24,155 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-22 14:21:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 14:21:24,155 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 14:21:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_update_used_flags [2021-12-22 14:21:24,156 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags [2021-12-22 14:21:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_discard_vq_desc [2021-12-22 14:21:24,156 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_discard_vq_desc [2021-12-22 14:21:24,156 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2021-12-22 14:21:24,159 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2021-12-22 14:21:24,160 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_flush [2021-12-22 14:21:24,160 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_flush [2021-12-22 14:21:24,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2021-12-22 14:21:24,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2021-12-22 14:21:24,161 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:21:24,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:21:24,161 INFO L130 BoogieDeclarations]: Found specification of procedure log_access_ok [2021-12-22 14:21:24,166 INFO L138 BoogieDeclarations]: Found implementation of procedure log_access_ok [2021-12-22 14:21:24,166 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-22 14:21:24,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-22 14:21:24,166 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 14:21:24,167 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 14:21:24,167 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_signal [2021-12-22 14:21:24,167 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_signal [2021-12-22 14:21:24,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:21:24,167 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_signal_used [2021-12-22 14:21:24,167 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_signal_used [2021-12-22 14:21:24,167 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_start [2021-12-22 14:21:24,168 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_start [2021-12-22 14:21:24,168 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-22 14:21:24,168 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-22 14:21:24,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:21:24,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:21:24,168 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 14:21:24,168 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 14:21:24,989 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:21:24,992 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:21:29,394 INFO L766 $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 [2021-12-22 14:21:29,394 INFO L766 $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; [2021-12-22 14:21:29,394 INFO L766 $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 [2021-12-22 14:21:29,394 INFO L766 $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; [2021-12-22 14:21:29,394 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume __copy_to_user_#t~switch137#1; [2021-12-22 14:21:29,395 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume !__copy_to_user_#t~switch137#1; [2021-12-22 14:21:29,395 INFO L766 $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; [2021-12-22 14:21:29,395 INFO L766 $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; [2021-12-22 14:21:29,395 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume __copy_to_user_#t~switch137#1; [2021-12-22 14:21:29,395 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := true; [2021-12-22 14:21:29,395 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5825: havoc __copy_to_user_#t~switch137#1; [2021-12-22 14:21:29,395 INFO L766 $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; [2021-12-22 14:21:29,395 INFO L766 $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; [2021-12-22 14:21:29,395 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume __copy_to_user_#t~switch137#1; [2021-12-22 14:21:29,395 INFO L766 $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; [2021-12-22 14:21:29,395 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2021-12-22 14:21:29,396 INFO L766 $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; [2021-12-22 14:21:29,396 INFO L766 $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 [2021-12-22 14:21:29,396 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2021-12-22 14:21:29,396 INFO L766 $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; [2021-12-22 14:21:29,397 INFO L766 $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); [2021-12-22 14:21:29,397 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2021-12-22 14:21:29,397 INFO L766 $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; [2021-12-22 14:21:29,397 INFO L766 $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; [2021-12-22 14:21:29,397 INFO L766 $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; [2021-12-22 14:21:31,329 INFO L766 $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 [2021-12-22 14:21:31,330 INFO L766 $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; [2021-12-22 14:21:31,330 INFO L766 $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; [2021-12-22 14:21:31,330 INFO L766 $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; [2021-12-22 14:21:31,330 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5760: havoc __copy_from_user_#t~switch132#1; [2021-12-22 14:21:31,330 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume __copy_from_user_#t~switch132#1; [2021-12-22 14:21:31,330 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := true; [2021-12-22 14:21:31,330 INFO L766 $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 [2021-12-22 14:21:31,330 INFO L766 $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; [2021-12-22 14:21:31,330 INFO L766 $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; [2021-12-22 14:21:31,330 INFO L766 $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; [2021-12-22 14:21:31,330 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2021-12-22 14:21:31,330 INFO L766 $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; [2021-12-22 14:21:31,330 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2021-12-22 14:21:31,331 INFO L766 $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; [2021-12-22 14:21:31,331 INFO L766 $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; [2021-12-22 14:21:31,331 INFO L766 $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; [2021-12-22 14:21:31,331 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume __copy_from_user_#t~switch132#1; [2021-12-22 14:21:31,331 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume !__copy_from_user_#t~switch132#1; [2021-12-22 14:21:31,331 INFO L766 $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); [2021-12-22 14:21:31,331 INFO L766 $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 [2021-12-22 14:21:31,331 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2021-12-22 14:21:31,331 INFO L766 $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; [2021-12-22 14:21:31,331 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume __copy_from_user_#t~switch132#1; [2021-12-22 14:21:31,331 INFO L766 $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; [2021-12-22 14:21:32,282 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:21:32,305 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:21:32,305 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:21:32,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:21:32 BoogieIcfgContainer [2021-12-22 14:21:32,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:21:32,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:21:32,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:21:32,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:21:32,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:21:20" (1/3) ... [2021-12-22 14:21:32,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d22bac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:21:32, skipping insertion in model container [2021-12-22 14:21:32,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:21:23" (2/3) ... [2021-12-22 14:21:32,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d22bac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:21:32, skipping insertion in model container [2021-12-22 14:21:32,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:21:32" (3/3) ... [2021-12-22 14:21:32,321 INFO L111 eAbstractionObserver]: Analyzing ICFG main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2021-12-22 14:21:32,327 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:21:32,328 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:21:32,392 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:21:32,401 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 14:21:32,401 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:21:32,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 2239 states, 1550 states have (on average 1.344516129032258) internal successors, (2084), 1596 states have internal predecessors, (2084), 579 states have call successors, (579), 108 states have call predecessors, (579), 108 states have return successors, (579), 574 states have call predecessors, (579), 579 states have call successors, (579) [2021-12-22 14:21:32,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-22 14:21:32,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:21:32,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:21:32,470 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:21:32,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:21:32,475 INFO L85 PathProgramCache]: Analyzing trace with hash -662016059, now seen corresponding path program 1 times [2021-12-22 14:21:32,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:21:32,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341184456] [2021-12-22 14:21:32,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:21:32,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:21:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:32,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:21:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:21:32,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:21:32,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341184456] [2021-12-22 14:21:32,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341184456] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:21:32,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:21:32,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:21:32,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254259083] [2021-12-22 14:21:32,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:21:32,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:21:32,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:21:32,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:21:32,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:21:32,935 INFO L87 Difference]: Start difference. First operand has 2239 states, 1550 states have (on average 1.344516129032258) internal successors, (2084), 1596 states have internal predecessors, (2084), 579 states have call successors, (579), 108 states have call predecessors, (579), 108 states have return successors, (579), 574 states have call predecessors, (579), 579 states have call successors, (579) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 14:21:33,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:21:33,196 INFO L93 Difference]: Finished difference Result 4464 states and 6561 transitions. [2021-12-22 14:21:33,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:21:33,198 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 [2021-12-22 14:21:33,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:21:33,234 INFO L225 Difference]: With dead ends: 4464 [2021-12-22 14:21:33,234 INFO L226 Difference]: Without dead ends: 2228 [2021-12-22 14:21:33,258 INFO L932 BasicCegarLoop]: 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 [2021-12-22 14:21:33,264 INFO L933 BasicCegarLoop]: 3230 mSDtfsCounter, 3220 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3220 SdHoareTripleChecker+Valid, 3230 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:21:33,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3220 Valid, 3230 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:21:33,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2021-12-22 14:21:33,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2228. [2021-12-22 14:21:33,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 1542 states have (on average 1.3411154345006484) internal successors, (2068), 1585 states have internal predecessors, (2068), 578 states have call successors, (578), 108 states have call predecessors, (578), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2021-12-22 14:21:33,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 3219 transitions. [2021-12-22 14:21:33,498 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 3219 transitions. Word has length 16 [2021-12-22 14:21:33,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:21:33,501 INFO L470 AbstractCegarLoop]: Abstraction has 2228 states and 3219 transitions. [2021-12-22 14:21:33,501 INFO L471 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) [2021-12-22 14:21:33,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 3219 transitions. [2021-12-22 14:21:33,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-22 14:21:33,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:21:33,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:21:33,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:21:33,504 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:21:33,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:21:33,507 INFO L85 PathProgramCache]: Analyzing trace with hash 951309113, now seen corresponding path program 1 times [2021-12-22 14:21:33,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:21:33,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693748446] [2021-12-22 14:21:33,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:21:33,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:21:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:33,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:21:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:33,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:21:33,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:21:33,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693748446] [2021-12-22 14:21:33,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693748446] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:21:33,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:21:33,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:21:33,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830196223] [2021-12-22 14:21:33,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:21:33,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:21:33,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:21:33,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:21:33,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:21:33,639 INFO L87 Difference]: Start difference. First operand 2228 states and 3219 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 14:21:33,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:21:33,799 INFO L93 Difference]: Finished difference Result 2230 states and 3220 transitions. [2021-12-22 14:21:33,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:21:33,800 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 [2021-12-22 14:21:33,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:21:33,814 INFO L225 Difference]: With dead ends: 2230 [2021-12-22 14:21:33,815 INFO L226 Difference]: Without dead ends: 2227 [2021-12-22 14:21:33,820 INFO L932 BasicCegarLoop]: 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 [2021-12-22 14:21:33,821 INFO L933 BasicCegarLoop]: 3216 mSDtfsCounter, 3205 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3205 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:21:33,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3205 Valid, 3216 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:21:33,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2021-12-22 14:21:33,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2227. [2021-12-22 14:21:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1542 states have (on average 1.3404669260700388) internal successors, (2067), 1584 states have internal predecessors, (2067), 577 states have call successors, (577), 108 states have call predecessors, (577), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2021-12-22 14:21:33,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3217 transitions. [2021-12-22 14:21:33,928 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 3217 transitions. Word has length 17 [2021-12-22 14:21:33,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:21:33,928 INFO L470 AbstractCegarLoop]: Abstraction has 2227 states and 3217 transitions. [2021-12-22 14:21:33,929 INFO L471 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) [2021-12-22 14:21:33,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 3217 transitions. [2021-12-22 14:21:33,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-22 14:21:33,929 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:21:33,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:21:33,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:21:33,930 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:21:33,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:21:33,931 INFO L85 PathProgramCache]: Analyzing trace with hash -575213240, now seen corresponding path program 1 times [2021-12-22 14:21:33,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:21:33,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673348366] [2021-12-22 14:21:33,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:21:33,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:21:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:33,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:21:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:21:34,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:21:34,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673348366] [2021-12-22 14:21:34,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673348366] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:21:34,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:21:34,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:21:34,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209176809] [2021-12-22 14:21:34,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:21:34,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:21:34,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:21:34,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:21:34,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:21:34,006 INFO L87 Difference]: Start difference. First operand 2227 states and 3217 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 14:21:34,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:21:34,094 INFO L93 Difference]: Finished difference Result 2229 states and 3218 transitions. [2021-12-22 14:21:34,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:21:34,094 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 [2021-12-22 14:21:34,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:21:34,109 INFO L225 Difference]: With dead ends: 2229 [2021-12-22 14:21:34,109 INFO L226 Difference]: Without dead ends: 2226 [2021-12-22 14:21:34,112 INFO L932 BasicCegarLoop]: 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 [2021-12-22 14:21:34,113 INFO L933 BasicCegarLoop]: 3214 mSDtfsCounter, 3202 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3202 SdHoareTripleChecker+Valid, 3214 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:21:34,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3202 Valid, 3214 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:21:34,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2021-12-22 14:21:34,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 2226. [2021-12-22 14:21:34,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 1542 states have (on average 1.3398184176394292) internal successors, (2066), 1583 states have internal predecessors, (2066), 576 states have call successors, (576), 108 states have call predecessors, (576), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2021-12-22 14:21:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 3215 transitions. [2021-12-22 14:21:34,216 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 3215 transitions. Word has length 18 [2021-12-22 14:21:34,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:21:34,217 INFO L470 AbstractCegarLoop]: Abstraction has 2226 states and 3215 transitions. [2021-12-22 14:21:34,217 INFO L471 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) [2021-12-22 14:21:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 3215 transitions. [2021-12-22 14:21:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-22 14:21:34,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:21:34,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:21:34,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:21:34,218 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:21:34,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:21:34,219 INFO L85 PathProgramCache]: Analyzing trace with hash -652761060, now seen corresponding path program 1 times [2021-12-22 14:21:34,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:21:34,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603316611] [2021-12-22 14:21:34,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:21:34,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:21:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:34,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:21:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:34,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:21:34,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:21:34,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603316611] [2021-12-22 14:21:34,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603316611] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:21:34,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:21:34,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:21:34,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384098136] [2021-12-22 14:21:34,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:21:34,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:21:34,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:21:34,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:21:34,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:21:34,298 INFO L87 Difference]: Start difference. First operand 2226 states and 3215 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 14:21:34,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:21:34,524 INFO L93 Difference]: Finished difference Result 5137 states and 7376 transitions. [2021-12-22 14:21:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:21:34,525 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 [2021-12-22 14:21:34,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:21:34,547 INFO L225 Difference]: With dead ends: 5137 [2021-12-22 14:21:34,548 INFO L226 Difference]: Without dead ends: 2913 [2021-12-22 14:21:34,562 INFO L932 BasicCegarLoop]: 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 [2021-12-22 14:21:34,570 INFO L933 BasicCegarLoop]: 3667 mSDtfsCounter, 1302 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 6466 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:21:34,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1302 Valid, 6466 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:21:34,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2021-12-22 14:21:34,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2910. [2021-12-22 14:21:34,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2910 states, 2009 states have (on average 1.321553011448482) internal successors, (2655), 2071 states have internal predecessors, (2655), 721 states have call successors, (721), 183 states have call predecessors, (721), 179 states have return successors, (731), 698 states have call predecessors, (731), 708 states have call successors, (731) [2021-12-22 14:21:34,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2910 states to 2910 states and 4107 transitions. [2021-12-22 14:21:34,741 INFO L78 Accepts]: Start accepts. Automaton has 2910 states and 4107 transitions. Word has length 19 [2021-12-22 14:21:34,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:21:34,742 INFO L470 AbstractCegarLoop]: Abstraction has 2910 states and 4107 transitions. [2021-12-22 14:21:34,742 INFO L471 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) [2021-12-22 14:21:34,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2910 states and 4107 transitions. [2021-12-22 14:21:34,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-22 14:21:34,753 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:21:34,754 INFO L514 BasicCegarLoop]: 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] [2021-12-22 14:21:34,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:21:34,754 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:21:34,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:21:34,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1639297723, now seen corresponding path program 1 times [2021-12-22 14:21:34,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:21:34,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917790271] [2021-12-22 14:21:34,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:21:34,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:21:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:34,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:21:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:34,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:21:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:34,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 14:21:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:34,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:21:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:34,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:21:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:34,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:21:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:34,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-22 14:21:34,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:21:34,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917790271] [2021-12-22 14:21:34,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917790271] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:21:34,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:21:34,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:21:34,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234893498] [2021-12-22 14:21:34,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:21:34,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:21:34,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:21:34,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:21:34,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:21:34,949 INFO L87 Difference]: Start difference. First operand 2910 states and 4107 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 14:21:37,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:21:41,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:21:47,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:21:47,571 INFO L93 Difference]: Finished difference Result 6348 states and 9025 transitions. [2021-12-22 14:21:47,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 14:21:47,572 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 [2021-12-22 14:21:47,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:21:47,597 INFO L225 Difference]: With dead ends: 6348 [2021-12-22 14:21:47,597 INFO L226 Difference]: Without dead ends: 3449 [2021-12-22 14:21:47,612 INFO L932 BasicCegarLoop]: 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 [2021-12-22 14:21:47,613 INFO L933 BasicCegarLoop]: 2764 mSDtfsCounter, 2219 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 3883 mSolverCounterSat, 1611 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 6106 SdHoareTripleChecker+Invalid, 5495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1611 IncrementalHoareTripleChecker+Valid, 3883 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:21:47,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2517 Valid, 6106 Invalid, 5495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1611 Valid, 3883 Invalid, 1 Unknown, 0 Unchecked, 12.2s Time] [2021-12-22 14:21:47,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3449 states. [2021-12-22 14:21:47,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3449 to 2965. [2021-12-22 14:21:47,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2048 states have (on average 1.31884765625) internal successors, (2701), 2112 states have internal predecessors, (2701), 726 states have call successors, (726), 183 states have call predecessors, (726), 190 states have return successors, (750), 713 states have call predecessors, (750), 713 states have call successors, (750) [2021-12-22 14:21:47,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 4177 transitions. [2021-12-22 14:21:47,773 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 4177 transitions. Word has length 56 [2021-12-22 14:21:47,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:21:47,773 INFO L470 AbstractCegarLoop]: Abstraction has 2965 states and 4177 transitions. [2021-12-22 14:21:47,774 INFO L471 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) [2021-12-22 14:21:47,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 4177 transitions. [2021-12-22 14:21:47,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-22 14:21:47,776 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:21:47,776 INFO L514 BasicCegarLoop]: 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] [2021-12-22 14:21:47,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:21:47,776 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:21:47,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:21:47,777 INFO L85 PathProgramCache]: Analyzing trace with hash -963749432, now seen corresponding path program 1 times [2021-12-22 14:21:47,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:21:47,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251746173] [2021-12-22 14:21:47,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:21:47,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:21:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:47,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:21:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:47,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 14:21:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:47,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-22 14:21:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:47,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:21:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:47,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 14:21:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:47,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:21:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:47,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-22 14:21:47,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:21:47,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251746173] [2021-12-22 14:21:47,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251746173] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:21:47,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:21:47,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:21:47,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29523280] [2021-12-22 14:21:47,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:21:47,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:21:47,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:21:47,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:21:47,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:21:47,978 INFO L87 Difference]: Start difference. First operand 2965 states and 4177 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-22 14:21:50,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:21:53,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:21:53,118 INFO L93 Difference]: Finished difference Result 6019 states and 8585 transitions. [2021-12-22 14:21:53,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:21:53,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 62 [2021-12-22 14:21:53,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:21:53,137 INFO L225 Difference]: With dead ends: 6019 [2021-12-22 14:21:53,137 INFO L226 Difference]: Without dead ends: 3065 [2021-12-22 14:21:53,155 INFO L932 BasicCegarLoop]: 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 [2021-12-22 14:21:53,156 INFO L933 BasicCegarLoop]: 2947 mSDtfsCounter, 1192 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 627 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 5913 SdHoareTripleChecker+Invalid, 2482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:21:53,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1451 Valid, 5913 Invalid, 2482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 1854 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-12-22 14:21:53,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2021-12-22 14:21:53,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 2965. [2021-12-22 14:21:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2048 states have (on average 1.31591796875) internal successors, (2695), 2112 states have internal predecessors, (2695), 726 states have call successors, (726), 183 states have call predecessors, (726), 190 states have return successors, (750), 713 states have call predecessors, (750), 713 states have call successors, (750) [2021-12-22 14:21:53,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 4171 transitions. [2021-12-22 14:21:53,299 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 4171 transitions. Word has length 62 [2021-12-22 14:21:53,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:21:53,301 INFO L470 AbstractCegarLoop]: Abstraction has 2965 states and 4171 transitions. [2021-12-22 14:21:53,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-22 14:21:53,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 4171 transitions. [2021-12-22 14:21:53,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-22 14:21:53,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:21:53,304 INFO L514 BasicCegarLoop]: 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] [2021-12-22 14:21:53,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 14:21:53,305 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:21:53,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:21:53,305 INFO L85 PathProgramCache]: Analyzing trace with hash -566496063, now seen corresponding path program 1 times [2021-12-22 14:21:53,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:21:53,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354317103] [2021-12-22 14:21:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:21:53,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:21:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:53,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:21:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:21:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:53,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 14:21:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:53,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:21:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:53,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:21:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:53,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:21:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:21:53,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-22 14:21:53,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:21:53,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354317103] [2021-12-22 14:21:53,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354317103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:21:53,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:21:53,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:21:53,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384193302] [2021-12-22 14:21:53,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:21:53,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:21:53,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:21:53,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:21:53,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:21:53,479 INFO L87 Difference]: Start difference. First operand 2965 states and 4171 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 14:21:55,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:21:58,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:22:00,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:22:00,141 INFO L93 Difference]: Finished difference Result 5074 states and 7079 transitions. [2021-12-22 14:22:00,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:22:00,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2021-12-22 14:22:00,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:22:00,154 INFO L225 Difference]: With dead ends: 5074 [2021-12-22 14:22:00,154 INFO L226 Difference]: Without dead ends: 2542 [2021-12-22 14:22:00,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:22:00,167 INFO L933 BasicCegarLoop]: 2645 mSDtfsCounter, 2832 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 1198 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3097 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 2678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1198 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-22 14:22:00,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3097 Valid, 3596 Invalid, 2678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1198 Valid, 1478 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-12-22 14:22:00,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2021-12-22 14:22:00,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2420. [2021-12-22 14:22:00,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1678 states have (on average 1.3039332538736592) internal successors, (2188), 1724 states have internal predecessors, (2188), 571 states have call successors, (571), 175 states have call predecessors, (571), 170 states have return successors, (556), 549 states have call predecessors, (556), 556 states have call successors, (556) [2021-12-22 14:22:00,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3315 transitions. [2021-12-22 14:22:00,269 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3315 transitions. Word has length 62 [2021-12-22 14:22:00,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:22:00,269 INFO L470 AbstractCegarLoop]: Abstraction has 2420 states and 3315 transitions. [2021-12-22 14:22:00,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 14:22:00,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3315 transitions. [2021-12-22 14:22:00,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-22 14:22:00,273 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:22:00,273 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:22:00,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 14:22:00,274 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:22:00,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:22:00,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2018660585, now seen corresponding path program 1 times [2021-12-22 14:22:00,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:22:00,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84302580] [2021-12-22 14:22:00,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:22:00,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:22:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:22:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:22:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:22:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:22:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:22:00,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-22 14:22:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:22:00,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-22 14:22:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:22:00,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:22:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:22:00,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:22:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:22:00,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-22 14:22:00,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:22:00,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84302580] [2021-12-22 14:22:00,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84302580] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:22:00,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:22:00,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:22:00,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936790261] [2021-12-22 14:22:00,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:22:00,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:22:00,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:22:00,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:22:00,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:22:00,462 INFO L87 Difference]: Start difference. First operand 2420 states and 3315 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-22 14:22:03,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:22:05,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:22:07,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:22:09,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:22:14,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:22:14,474 INFO L93 Difference]: Finished difference Result 2569 states and 3531 transitions. [2021-12-22 14:22:14,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:22:14,474 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 65 [2021-12-22 14:22:14,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:22:14,488 INFO L225 Difference]: With dead ends: 2569 [2021-12-22 14:22:14,488 INFO L226 Difference]: Without dead ends: 2559 [2021-12-22 14:22:14,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:22:14,490 INFO L933 BasicCegarLoop]: 2369 mSDtfsCounter, 1138 mSDsluCounter, 6497 mSDsCounter, 0 mSdLazyCounter, 5173 mSolverCounterSat, 502 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 8866 SdHoareTripleChecker+Invalid, 5679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 5173 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:22:14,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1382 Valid, 8866 Invalid, 5679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 5173 Invalid, 4 Unknown, 0 Unchecked, 13.8s Time] [2021-12-22 14:22:14,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2021-12-22 14:22:14,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2425. [2021-12-22 14:22:14,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2425 states, 1682 states have (on average 1.3032104637336503) internal successors, (2192), 1728 states have internal predecessors, (2192), 571 states have call successors, (571), 175 states have call predecessors, (571), 171 states have return successors, (559), 550 states have call predecessors, (559), 556 states have call successors, (559) [2021-12-22 14:22:14,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2425 states to 2425 states and 3322 transitions. [2021-12-22 14:22:14,590 INFO L78 Accepts]: Start accepts. Automaton has 2425 states and 3322 transitions. Word has length 65 [2021-12-22 14:22:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:22:14,591 INFO L470 AbstractCegarLoop]: Abstraction has 2425 states and 3322 transitions. [2021-12-22 14:22:14,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-22 14:22:14,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2425 states and 3322 transitions. [2021-12-22 14:22:14,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-22 14:22:14,593 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:22:14,593 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:22:14,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 14:22:14,593 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:22:14,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:22:14,594 INFO L85 PathProgramCache]: Analyzing trace with hash -996443033, now seen corresponding path program 1 times [2021-12-22 14:22:14,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:22:14,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664452355] [2021-12-22 14:22:14,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:22:14,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:22:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 14:22:14,673 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 14:22:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 14:22:14,804 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 14:22:14,804 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-22 14:22:14,805 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 14:22:14,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 14:22:14,810 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:22:14,812 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 14:22:14,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 02:22:14 BoogieIcfgContainer [2021-12-22 14:22:14,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 14:22:14,923 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 14:22:14,923 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 14:22:14,923 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 14:22:14,924 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:21:32" (3/4) ... [2021-12-22 14:22:14,926 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-22 14:22:14,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 14:22:14,927 INFO L158 Benchmark]: Toolchain (without parser) took 54674.55ms. Allocated memory was 90.2MB in the beginning and 610.3MB in the end (delta: 520.1MB). Free memory was 47.0MB in the beginning and 173.5MB in the end (delta: -126.5MB). Peak memory consumption was 393.6MB. Max. memory is 16.1GB. [2021-12-22 14:22:14,927 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 14:22:14,928 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3133.92ms. Allocated memory was 90.2MB in the beginning and 151.0MB in the end (delta: 60.8MB). Free memory was 46.8MB in the beginning and 60.9MB in the end (delta: -14.1MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2021-12-22 14:22:14,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 300.87ms. Allocated memory is still 151.0MB. Free memory was 60.9MB in the beginning and 57.3MB in the end (delta: 3.7MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-12-22 14:22:14,928 INFO L158 Benchmark]: Boogie Preprocessor took 295.42ms. Allocated memory is still 151.0MB. Free memory was 57.3MB in the beginning and 45.5MB in the end (delta: 11.7MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2021-12-22 14:22:14,929 INFO L158 Benchmark]: RCFGBuilder took 8323.32ms. Allocated memory was 151.0MB in the beginning and 396.4MB in the end (delta: 245.4MB). Free memory was 45.5MB in the beginning and 278.5MB in the end (delta: -233.0MB). Peak memory consumption was 171.9MB. Max. memory is 16.1GB. [2021-12-22 14:22:14,930 INFO L158 Benchmark]: TraceAbstraction took 42608.98ms. Allocated memory was 396.4MB in the beginning and 610.3MB in the end (delta: 213.9MB). Free memory was 278.5MB in the beginning and 173.5MB in the end (delta: 105.0MB). Peak memory consumption was 318.9MB. Max. memory is 16.1GB. [2021-12-22 14:22:14,930 INFO L158 Benchmark]: Witness Printer took 3.73ms. Allocated memory is still 610.3MB. Free memory is still 173.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 14:22:14,931 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3133.92ms. Allocated memory was 90.2MB in the beginning and 151.0MB in the end (delta: 60.8MB). Free memory was 46.8MB in the beginning and 60.9MB in the end (delta: -14.1MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 300.87ms. Allocated memory is still 151.0MB. Free memory was 60.9MB in the beginning and 57.3MB in the end (delta: 3.7MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 295.42ms. Allocated memory is still 151.0MB. Free memory was 57.3MB in the beginning and 45.5MB in the end (delta: 11.7MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * RCFGBuilder took 8323.32ms. Allocated memory was 151.0MB in the beginning and 396.4MB in the end (delta: 245.4MB). Free memory was 45.5MB in the beginning and 278.5MB in the end (delta: -233.0MB). Peak memory consumption was 171.9MB. Max. memory is 16.1GB. * TraceAbstraction took 42608.98ms. Allocated memory was 396.4MB in the beginning and 610.3MB in the end (delta: 213.9MB). Free memory was 278.5MB in the beginning and 173.5MB in the end (delta: 105.0MB). Peak memory consumption was 318.9MB. Max. memory is 16.1GB. * Witness Printer took 3.73ms. Allocated memory is still 610.3MB. Free memory is still 173.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10992]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 10595. Possible FailurePath: [L5971] static unsigned int vhost_zcopy_mask ; [L9348] static int experimental_zcopytx ; [L10590-L10593] static struct file_operations const vhost_net_fops = {& __this_module, & noop_llseek, 0, 0, 0, 0, 0, 0, & vhost_net_ioctl, & vhost_net_compat_ioctl, 0, & vhost_net_open, 0, & vhost_net_release, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L10594-L10595] static struct miscdevice vhost_net_misc = {238, "vhost-net", & vhost_net_fops, {0, 0}, 0, 0, 0, (unsigned short)0}; [L10620] int LDV_IN_INTERRUPT ; [L11002] static int ldv_mutex_cred_guard_mutex ; [L11109] static int ldv_mutex_lock ; [L11216] static int ldv_mutex_mtx ; [L11323] static int ldv_mutex_mutex ; VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=0, ldv_mutex_cred_guard_mutex=0, ldv_mutex_lock=0, ldv_mutex_mtx=0, ldv_mutex_mutex=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10623] struct inode *var_group1 ; [L10624] struct file *var_group2 ; [L10625] unsigned int var_vhost_net_ioctl_27_p1 ; [L10626] unsigned long var_vhost_net_ioctl_27_p2 ; [L10627] unsigned int var_vhost_net_compat_ioctl_28_p1 ; [L10628] unsigned long var_vhost_net_compat_ioctl_28_p2 ; [L10629] int res_vhost_net_open_13 ; [L10630] int ldv_s_vhost_net_fops_file_operations ; [L10631] int tmp ; [L10632] int tmp___0 ; [L10633] int tmp___1 ; [L10635] ldv_s_vhost_net_fops_file_operations = 0 [L10636] LDV_IN_INTERRUPT = 1 [L10637] CALL ldv_initialize() [L11433] ldv_mutex_cred_guard_mutex = 1 [L11434] ldv_mutex_lock = 1 [L11435] ldv_mutex_mtx = 1 [L11436] ldv_mutex_mutex = 1 VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10637] RET ldv_initialize() [L10638] FCALL ldv_handler_precall() VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10639] CALL, EXPR vhost_net_init() [L10598] int tmp ; VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10600] COND FALSE !(experimental_zcopytx != 0) VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10604] CALL, EXPR misc_register(& vhost_net_misc) [L11595] return __VERIFIER_nondet_int(); [L10604] RET, EXPR misc_register(& vhost_net_misc) [L10604] tmp = misc_register(& vhost_net_misc) [L10605] return (tmp); VAL [\result=0, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, tmp=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10639] RET, EXPR vhost_net_init() [L10639] tmp = vhost_net_init() [L10640] COND FALSE !(tmp != 0) VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10682] tmp___1 = __VERIFIER_nondet_int() [L10683] COND TRUE tmp___1 != 0 || ldv_s_vhost_net_fops_file_operations != 0 VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___1=-2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10646] tmp___0 = __VERIFIER_nondet_int() [L10648] case 0: [L10661] case 1: [L10669] case 2: VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___0=2, tmp___1=-2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10670] FCALL ldv_handler_precall() VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___0=2, tmp___1=-2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10671] CALL vhost_net_ioctl(var_group2, var_vhost_net_ioctl_27_p1, var_vhost_net_ioctl_27_p2) VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10521] struct vhost_net *n ; [L10522] void *argp ; [L10523] u64 *featurep ; [L10524] struct vhost_vring_file backend ; [L10525] u64 features ; [L10526] int r ; [L10527] unsigned long tmp ; [L10528] long tmp___0 ; [L10529] int tmp___1 ; [L10530] unsigned long tmp___2 ; [L10531] int tmp___3 ; [L10532] long tmp___4 ; [L10533] long tmp___5 ; [L10535] EXPR f->private_data [L10535] n = (struct vhost_net *)f->private_data [L10536] argp = (void *)arg [L10537] featurep = (u64 *)argp [L10539] case 1074310960U: [L10547] case 2148052736U: [L10555] case 1074310912U: [L10567] case 44802U: [L10568] CALL vhost_net_reset_owner(n) [L10445] struct socket *tx_sock ; [L10446] struct socket *rx_sock ; [L10447] long err ; [L10449] tx_sock = 0 [L10450] rx_sock = 0 [L10451] CALL ldv_mutex_lock_66(& n->dev.mutex) [L10919] CALL ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, lock={18446744073709551615:-17400}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L11361] COND TRUE ldv_mutex_mutex == 1 VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, lock={18446744073709551615:-17400}, lock={18446744073709551615:-17400}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L11365] ldv_mutex_mutex = 2 VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={18446744073709551615:-17400}, lock={18446744073709551615:-17400}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10919] RET ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, ldv_func_arg1={18446744073709551615:-17400}, ldv_func_arg1={18446744073709551615:-17400}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10920] FCALL mutex_lock(ldv_func_arg1) VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, ldv_func_arg1={18446744073709551615:-17400}, ldv_func_arg1={18446744073709551615:-17400}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10451] RET ldv_mutex_lock_66(& n->dev.mutex) [L10452] CALL, EXPR vhost_dev_check_owner(& n->dev) VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, dev={18446744073709551615:-17416}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L6410] struct task_struct *tmp ; VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, dev={18446744073709551615:-17416}, dev={18446744073709551615:-17416}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L6412] CALL, EXPR get_current() VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L5283] struct task_struct *pfo_ret__ ; [L5286] case 1UL: [L5289] case 2UL: [L5292] case 4UL: [L5295] case 8UL: VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L5302] return (pfo_ret__); VAL [\old(ldv_mutex_mutex)=1, \result={18446744073709551617:-5}, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, pfo_ret__={18446744073709551617:-5}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L6412] RET, EXPR get_current() VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, dev={18446744073709551615:-17416}, dev={18446744073709551615:-17416}, experimental_zcopytx=0, get_current()={18446744073709551617:-5}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L6412] tmp = get_current() [L6413] EXPR dev->mm [L6413] EXPR tmp->mm VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, dev={18446744073709551615:-17416}, dev={18446744073709551615:-17416}, dev->mm={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, tmp={18446744073709551617:-5}, tmp->mm={0:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L6413] EXPR (unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L VAL [(unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L=0, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, dev={18446744073709551615:-17416}, dev={18446744073709551615:-17416}, dev->mm={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, tmp={18446744073709551617:-5}, tmp->mm={0:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L6413] return ((unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L); [L10452] RET, EXPR vhost_dev_check_owner(& n->dev) VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={18446744073709551615:-17416}, n={18446744073709551615:-17416}, rx_sock={220:0}, tx_sock={217:0}, vhost_dev_check_owner(& n->dev)=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10452] err = vhost_dev_check_owner(& n->dev) [L10453] COND FALSE !(err != 0L) VAL [\old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, err=0, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={18446744073709551615:-17416}, n={18446744073709551615:-17416}, rx_sock={220:0}, tx_sock={217:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10457] CALL vhost_net_stop(n, & tx_sock, & rx_sock) VAL [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={18446744073709551615:-17416}, rx_sock={220:0}, tx_sock={217:0}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10183] CALL vhost_net_stop_vq(n, (struct vhost_virtqueue *)(& n->vqs) + 1UL) VAL [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={18446744073709551615:-17416}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0, vq={18446744073709551615:0}] [L10155] struct socket *sock ; [L10156] bool __warned ; [L10157] int tmp ; [L10158] int tmp___0 ; [L10160] CALL ldv_mutex_lock_56(& vq->mutex) [L10839] CALL ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={18446744073709551615:8}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L11361] COND FALSE !(ldv_mutex_mutex == 1) VAL [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={18446744073709551615:8}, lock={18446744073709551615:8}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L11363] CALL ldv_error() VAL [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10992] reach_error() VAL [\old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 109 procedures, 2239 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 42.4s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 39.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 19376 SdHoareTripleChecker+Valid, 37.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18310 mSDsluCounter, 40607 SdHoareTripleChecker+Invalid, 34.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16555 mSDsCounter, 3942 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12401 IncrementalHoareTripleChecker+Invalid, 16351 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3942 mSolverCounterUnsat, 24052 mSDtfsCounter, 12401 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2965occurred in iteration=5, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 843 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 307 ConstructedInterpolants, 0 QuantifiedInterpolants, 487 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-22 14:22:15,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:22:16,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:22:16,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:22:16,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:22:16,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:22:16,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:22:16,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:22:16,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:22:16,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:22:16,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:22:16,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:22:16,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:22:16,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:22:16,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:22:16,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:22:16,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:22:16,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:22:16,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:22:16,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:22:16,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:22:16,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:22:16,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:22:16,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:22:16,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:22:16,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:22:16,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:22:16,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:22:16,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:22:16,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:22:16,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:22:16,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:22:16,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:22:16,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:22:16,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:22:16,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:22:16,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:22:16,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:22:16,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:22:16,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:22:16,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:22:16,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:22:16,910 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-22 14:22:16,943 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:22:16,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:22:16,945 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:22:16,945 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:22:16,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:22:16,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:22:16,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:22:16,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:22:16,947 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:22:16,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:22:16,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:22:16,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:22:16,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:22:16,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:22:16,949 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-22 14:22:16,949 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-22 14:22:16,950 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-22 14:22:16,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:22:16,950 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:22:16,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:22:16,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:22:16,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:22:16,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:22:16,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:22:16,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:22:16,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:22:16,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:22:16,952 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-22 14:22:16,952 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-22 14:22:16,952 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:22:16,953 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:22:16,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:22:16,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:22:16,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-22 14:22:16,953 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f [2021-12-22 14:22:17,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:22:17,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:22:17,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:22:17,268 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:22:17,269 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:22:17,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2021-12-22 14:22:17,328 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6978a7f2/30bce638e0894249b2b40a2e3205dd70/FLAGe3c85289c