./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 6c24879c 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-?-6c24879 [2022-07-12 11:42:09,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:42:09,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:42:09,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:42:09,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:42:09,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:42:09,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:42:09,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:42:09,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:42:09,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:42:09,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:42:09,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:42:09,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:42:09,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:42:09,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:42:09,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:42:09,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:42:09,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:42:09,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:42:09,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:42:09,683 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:42:09,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:42:09,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:42:09,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:42:09,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:42:09,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:42:09,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:42:09,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:42:09,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:42:09,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:42:09,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:42:09,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:42:09,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:42:09,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:42:09,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:42:09,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:42:09,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:42:09,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:42:09,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:42:09,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:42:09,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:42:09,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:42:09,697 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 11:42:09,714 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:42:09,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:42:09,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:42:09,715 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:42:09,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:42:09,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:42:09,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:42:09,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:42:09,716 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:42:09,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:42:09,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 11:42:09,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:42:09,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:42:09,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:42:09,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:42:09,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:42:09,718 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:42:09,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:42:09,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:42:09,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:42:09,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:42:09,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:42:09,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:42:09,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:42:09,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:42:09,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 11:42:09,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 11:42:09,720 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:42:09,720 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:42:09,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:42:09,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f [2022-07-12 11:42:09,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:42:09,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:42:09,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:42:09,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:42:09,921 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:42:09,922 INFO L432 ainManager$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 [2022-07-12 11:42:09,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eed4402a/d39b736f8e1f4a4b8f33f4332d5eba84/FLAG98d26f6ad [2022-07-12 11:42:10,597 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:42:10,598 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 [2022-07-12 11:42:10,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eed4402a/d39b736f8e1f4a4b8f33f4332d5eba84/FLAG98d26f6ad [2022-07-12 11:42:10,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eed4402a/d39b736f8e1f4a4b8f33f4332d5eba84 [2022-07-12 11:42:10,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:42:10,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:42:10,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:42:10,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:42:11,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:42:11,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:42:10" (1/1) ... [2022-07-12 11:42:11,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357b48d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:11, skipping insertion in model container [2022-07-12 11:42:11,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:42:10" (1/1) ... [2022-07-12 11:42:11,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:42:11,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:42:12,522 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] [2022-07-12 11:42:12,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:42:12,633 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:42:12,896 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] [2022-07-12 11:42:12,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:42:12,971 INFO L208 MainTranslator]: Completed translation [2022-07-12 11:42:12,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:12 WrapperNode [2022-07-12 11:42:12,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 11:42:12,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 11:42:12,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 11:42:12,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 11:42:12,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:12" (1/1) ... [2022-07-12 11:42:13,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:12" (1/1) ... [2022-07-12 11:42:13,203 INFO L137 Inliner]: procedures = 335, calls = 2629, calls flagged for inlining = 138, calls inlined = 130, statements flattened = 6671 [2022-07-12 11:42:13,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 11:42:13,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 11:42:13,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 11:42:13,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 11:42:13,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:12" (1/1) ... [2022-07-12 11:42:13,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:12" (1/1) ... [2022-07-12 11:42:13,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:12" (1/1) ... [2022-07-12 11:42:13,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:12" (1/1) ... [2022-07-12 11:42:13,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:12" (1/1) ... [2022-07-12 11:42:13,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:12" (1/1) ... [2022-07-12 11:42:13,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:12" (1/1) ... [2022-07-12 11:42:13,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 11:42:13,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 11:42:13,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 11:42:13,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 11:42:13,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:12" (1/1) ... [2022-07-12 11:42:13,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:42:13,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:42:13,463 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) [2022-07-12 11:42:13,473 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 [2022-07-12 11:42:13,488 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used_and_signal [2022-07-12 11:42:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used_and_signal [2022-07-12 11:42:13,488 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2022-07-12 11:42:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2022-07-12 11:42:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_net [2022-07-12 11:42:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_net [2022-07-12 11:42:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs [2022-07-12 11:42:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs [2022-07-12 11:42:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-12 11:42:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-12 11:42:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure vq_access_ok [2022-07-12 11:42:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_access_ok [2022-07-12 11:42:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 11:42:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_flush [2022-07-12 11:42:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_flush [2022-07-12 11:42:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 11:42:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-07-12 11:42:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-07-12 11:42:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_check_owner [2022-07-12 11:42:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_check_owner [2022-07-12 11:42:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure log_write [2022-07-12 11:42:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure log_write [2022-07-12 11:42:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx [2022-07-12 11:42:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx [2022-07-12 11:42:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-12 11:42:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-12 11:42:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-12 11:42:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-12 11:42:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 11:42:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 11:42:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_reset [2022-07-12 11:42:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_reset [2022-07-12 11:42:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 11:42:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 11:42:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure vq_log_access_ok [2022-07-12 11:42:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_log_access_ok [2022-07-12 11:42:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 11:42:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 11:42:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 11:42:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 11:42:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-12 11:42:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 11:42:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 11:42:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure __vhost_add_used_n [2022-07-12 11:42:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __vhost_add_used_n [2022-07-12 11:42:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_start [2022-07-12 11:42:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_start [2022-07-12 11:42:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_queue [2022-07-12 11:42:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_queue [2022-07-12 11:42:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx [2022-07-12 11:42:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx [2022-07-12 11:42:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_kick [2022-07-12 11:42:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_kick [2022-07-12 11:42:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_open [2022-07-12 11:42:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_open [2022-07-12 11:42:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 11:42:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 11:42:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 11:42:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 11:42:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-12 11:42:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-12 11:42:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_fget [2022-07-12 11:42:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_fget [2022-07-12 11:42:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_init [2022-07-12 11:42:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_init [2022-07-12 11:42:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 11:42:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 11:42:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 11:42:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure vq_memory_access_ok [2022-07-12 11:42:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok [2022-07-12 11:42:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure move_iovec_hdr [2022-07-12 11:42:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure move_iovec_hdr [2022-07-12 11:42:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 11:42:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 11:42:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 11:42:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_queue [2022-07-12 11:42:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_queue [2022-07-12 11:42:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop [2022-07-12 11:42:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop [2022-07-12 11:42:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 11:42:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 11:42:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup [2022-07-12 11:42:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup [2022-07-12 11:42:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_callback [2022-07-12 11:42:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_callback [2022-07-12 11:42:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-12 11:42:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-12 11:42:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush_vq [2022-07-12 11:42:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush_vq [2022-07-12 11:42:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop_vq [2022-07-12 11:42:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop_vq [2022-07-12 11:42:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-12 11:42:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-12 11:42:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-12 11:42:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-12 11:42:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 11:42:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 11:42:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-07-12 11:42:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-07-12 11:42:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 11:42:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 11:42:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure next_desc [2022-07-12 11:42:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure next_desc [2022-07-12 11:42:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2022-07-12 11:42:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2022-07-12 11:42:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_stop [2022-07-12 11:42:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_stop [2022-07-12 11:42:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-12 11:42:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-12 11:42:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-07-12 11:42:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-07-12 11:42:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 11:42:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-12 11:42:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-12 11:42:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_has_feature [2022-07-12 11:42:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_has_feature [2022-07-12 11:42:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-12 11:42:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-12 11:42:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 11:42:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2022-07-12 11:42:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2022-07-12 11:42:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 11:42:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_init [2022-07-12 11:42:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_init [2022-07-12 11:42:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget [2022-07-12 11:42:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget [2022-07-12 11:42:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush [2022-07-12 11:42:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush [2022-07-12 11:42:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-12 11:42:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-12 11:42:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 11:42:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 11:42:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-12 11:42:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put [2022-07-12 11:42:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put [2022-07-12 11:42:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 11:42:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-12 11:42:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-12 11:42:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2022-07-12 11:42:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2022-07-12 11:42:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2022-07-12 11:42:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2022-07-12 11:42:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure translate_desc [2022-07-12 11:42:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_desc [2022-07-12 11:42:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_put [2022-07-12 11:42:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put [2022-07-12 11:42:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_ioctl [2022-07-12 11:42:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_ioctl [2022-07-12 11:42:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_disable_vq [2022-07-12 11:42:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_disable_vq [2022-07-12 11:42:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure mmput [2022-07-12 11:42:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure mmput [2022-07-12 11:42:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-12 11:42:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-12 11:42:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-12 11:42:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-12 11:42:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 11:42:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 11:42:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put_and_wait [2022-07-12 11:42:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put_and_wait [2022-07-12 11:42:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-12 11:42:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-12 11:42:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 11:42:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2022-07-12 11:42:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2022-07-12 11:42:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-12 11:42:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-12 11:42:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_get_vq_desc [2022-07-12 11:42:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_get_vq_desc [2022-07-12 11:42:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 11:42:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_signal [2022-07-12 11:42:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_signal [2022-07-12 11:42:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_enable_notify [2022-07-12 11:42:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_enable_notify [2022-07-12 11:42:13,518 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_stop [2022-07-12 11:42:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_stop [2022-07-12 11:42:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 11:42:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-12 11:42:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-12 11:42:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 11:42:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-07-12 11:42:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-07-12 11:42:13,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 11:42:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 11:42:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure memory_access_ok [2022-07-12 11:42:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_access_ok [2022-07-12 11:42:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-12 11:42:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-12 11:42:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-12 11:42:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-12 11:42:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_seq_done [2022-07-12 11:42:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done [2022-07-12 11:42:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 11:42:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 11:42:13,520 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_release [2022-07-12 11:42:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_release [2022-07-12 11:42:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-12 11:42:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-12 11:42:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_disable_notify [2022-07-12 11:42:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_disable_notify [2022-07-12 11:42:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-12 11:42:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-12 11:42:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 11:42:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 11:42:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_update_used_flags [2022-07-12 11:42:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags [2022-07-12 11:42:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_discard_vq_desc [2022-07-12 11:42:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_discard_vq_desc [2022-07-12 11:42:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-07-12 11:42:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-07-12 11:42:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_flush [2022-07-12 11:42:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_flush [2022-07-12 11:42:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2022-07-12 11:42:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2022-07-12 11:42:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 11:42:13,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 11:42:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure log_access_ok [2022-07-12 11:42:13,523 INFO L138 BoogieDeclarations]: Found implementation of procedure log_access_ok [2022-07-12 11:42:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-12 11:42:13,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-12 11:42:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 11:42:13,523 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 11:42:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_signal [2022-07-12 11:42:13,523 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_signal [2022-07-12 11:42:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 11:42:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_signal_used [2022-07-12 11:42:13,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_signal_used [2022-07-12 11:42:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_start [2022-07-12 11:42:13,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_start [2022-07-12 11:42:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-12 11:42:13,524 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-12 11:42:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 11:42:13,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 11:42:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 11:42:13,524 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 11:42:14,164 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 11:42:14,167 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 11:42:17,944 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5857: SUMMARY for call __copy_to_user_#t~ret139#1 := ldv__builtin_expect((if 0 != __copy_to_user_~ret~2#1 then 1 else 0), 0); srcloc: null [2022-07-12 11:42:17,944 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5857-1: assume -9223372036854775808 <= __copy_to_user_#t~ret139#1 && __copy_to_user_#t~ret139#1 <= 9223372036854775807;__copy_to_user_~tmp___1~3#1 := __copy_to_user_#t~ret139#1;havoc __copy_to_user_#t~ret139#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5845: SUMMARY for call __copy_to_user_#t~ret138#1 := ldv__builtin_expect((if 0 != __copy_to_user_~ret~2#1 then 1 else 0), 0); srcloc: null [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5845-1: assume -9223372036854775808 <= __copy_to_user_#t~ret138#1 && __copy_to_user_#t~ret138#1 <= 9223372036854775807;__copy_to_user_~tmp___0~6#1 := __copy_to_user_#t~ret138#1;havoc __copy_to_user_#t~ret138#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume __copy_to_user_#t~switch137#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume !__copy_to_user_#t~switch137#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume 0 != __copy_to_user_~tmp___1~3#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume !(0 != __copy_to_user_~tmp___1~3#1);__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume __copy_to_user_#t~switch137#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := true; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5825: havoc __copy_to_user_#t~switch137#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume 0 != __copy_to_user_~tmp___0~6#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume !(0 != __copy_to_user_~tmp___0~6#1);__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume __copy_to_user_#t~switch137#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 16 == __copy_to_user_~size#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 10 == __copy_to_user_~size#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5867: SUMMARY for call __copy_to_user_#t~ret140#1 := copy_user_generic(__copy_to_user_~dst#1.base, __copy_to_user_~dst#1.offset, __copy_to_user_~src#1.base, __copy_to_user_~src#1.offset, __copy_to_user_~size#1); srcloc: null [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 8 == __copy_to_user_~size#1; [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5867-1: __copy_to_user_~tmp___2~4#1 := __copy_to_user_#t~ret140#1;havoc __copy_to_user_#t~ret140#1;__copy_to_user_#res#1 := (if __copy_to_user_~tmp___2~4#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_~tmp___2~4#1 % 18446744073709551616 % 4294967296 else __copy_to_user_~tmp___2~4#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-07-12 11:42:17,945 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-07-12 11:42:17,946 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 4 == __copy_to_user_~size#1; [2022-07-12 11:42:17,946 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2022-07-12 11:42:17,946 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 2 == __copy_to_user_~size#1; [2022-07-12 11:42:19,239 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5785: SUMMARY for call __copy_from_user_#t~ret133#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~1#1 then 1 else 0), 0); srcloc: null [2022-07-12 11:42:19,239 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5785-1: assume -9223372036854775808 <= __copy_from_user_#t~ret133#1 && __copy_from_user_#t~ret133#1 <= 9223372036854775807;__copy_from_user_~tmp___0~5#1 := __copy_from_user_#t~ret133#1;havoc __copy_from_user_#t~ret133#1; [2022-07-12 11:42:19,239 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume 0 != __copy_from_user_~tmp___0~5#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-07-12 11:42:19,239 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume !(0 != __copy_from_user_~tmp___0~5#1);__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-07-12 11:42:19,239 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5760: havoc __copy_from_user_#t~switch132#1; [2022-07-12 11:42:19,239 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume __copy_from_user_#t~switch132#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := true; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5798: SUMMARY for call __copy_from_user_#t~ret134#1 := ldv__builtin_expect((if 0 != __copy_from_user_~ret~1#1 then 1 else 0), 0); srcloc: null [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5798-1: assume -9223372036854775808 <= __copy_from_user_#t~ret134#1 && __copy_from_user_#t~ret134#1 <= 9223372036854775807;__copy_from_user_~tmp___1~2#1 := __copy_from_user_#t~ret134#1;havoc __copy_from_user_#t~ret134#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume 0 != __copy_from_user_~tmp___1~2#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume !(0 != __copy_from_user_~tmp___1~2#1);__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 4 == __copy_from_user_~size#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 8 == __copy_from_user_~size#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 2 == __copy_from_user_~size#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume __copy_from_user_#t~switch132#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume !__copy_from_user_#t~switch132#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5808-1: __copy_from_user_~tmp___2~3#1 := __copy_from_user_#t~ret135#1;havoc __copy_from_user_#t~ret135#1;__copy_from_user_#res#1 := (if __copy_from_user_~tmp___2~3#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_~tmp___2~3#1 % 18446744073709551616 % 4294967296 else __copy_from_user_~tmp___2~3#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5808: SUMMARY for call __copy_from_user_#t~ret135#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 10 == __copy_from_user_~size#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume __copy_from_user_#t~switch132#1; [2022-07-12 11:42:19,240 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 16 == __copy_from_user_~size#1; [2022-07-12 11:42:19,824 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 11:42:19,842 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 11:42:19,842 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 11:42:19,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:42:19 BoogieIcfgContainer [2022-07-12 11:42:19,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 11:42:19,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 11:42:19,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 11:42:19,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 11:42:19,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 11:42:10" (1/3) ... [2022-07-12 11:42:19,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38483ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:42:19, skipping insertion in model container [2022-07-12 11:42:19,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:12" (2/3) ... [2022-07-12 11:42:19,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38483ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:42:19, skipping insertion in model container [2022-07-12 11:42:19,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:42:19" (3/3) ... [2022-07-12 11:42:19,853 INFO L111 eAbstractionObserver]: Analyzing ICFG main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2022-07-12 11:42:19,863 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 11:42:19,863 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 11:42:19,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 11:42:19,948 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1372fbae, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@11bbf37d [2022-07-12 11:42:19,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 11:42:19,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 2248 states, 1559 states have (on average 1.347658755612572) internal successors, (2101), 1605 states have internal predecessors, (2101), 579 states have call successors, (579), 108 states have call predecessors, (579), 108 states have return successors, (579), 574 states have call predecessors, (579), 579 states have call successors, (579) [2022-07-12 11:42:19,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-12 11:42:19,963 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:42:19,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:42:19,964 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:42:19,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:42:19,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1613910609, now seen corresponding path program 1 times [2022-07-12 11:42:19,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:42:19,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013278828] [2022-07-12 11:42:19,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:42:19,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:42:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:20,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:42:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:20,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:42:20,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:42:20,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013278828] [2022-07-12 11:42:20,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013278828] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:42:20,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:42:20,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:42:20,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085539389] [2022-07-12 11:42:20,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:42:20,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:42:20,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:42:20,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:42:20,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:42:20,389 INFO L87 Difference]: Start difference. First operand has 2248 states, 1559 states have (on average 1.347658755612572) internal successors, (2101), 1605 states have internal predecessors, (2101), 579 states have call successors, (579), 108 states have call predecessors, (579), 108 states have return successors, (579), 574 states have call predecessors, (579), 579 states have call successors, (579) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 11:42:20,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:42:20,638 INFO L93 Difference]: Finished difference Result 4478 states and 6611 transitions. [2022-07-12 11:42:20,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:42:20,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-07-12 11:42:20,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:42:20,660 INFO L225 Difference]: With dead ends: 4478 [2022-07-12 11:42:20,660 INFO L226 Difference]: Without dead ends: 2237 [2022-07-12 11:42:20,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:42:20,683 INFO L413 NwaCegarLoop]: 3245 mSDtfsCounter, 3235 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3235 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:42:20,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3235 Valid, 3245 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:42:20,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2022-07-12 11:42:20,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 2237. [2022-07-12 11:42:20,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 1551 states have (on average 1.3430045132172792) internal successors, (2083), 1594 states have internal predecessors, (2083), 578 states have call successors, (578), 108 states have call predecessors, (578), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-07-12 11:42:20,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 3234 transitions. [2022-07-12 11:42:20,887 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 3234 transitions. Word has length 16 [2022-07-12 11:42:20,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:42:20,889 INFO L495 AbstractCegarLoop]: Abstraction has 2237 states and 3234 transitions. [2022-07-12 11:42:20,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 11:42:20,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3234 transitions. [2022-07-12 11:42:20,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-12 11:42:20,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:42:20,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:42:20,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 11:42:20,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:42:20,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:42:20,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1507349808, now seen corresponding path program 1 times [2022-07-12 11:42:20,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:42:20,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678113130] [2022-07-12 11:42:20,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:42:20,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:42:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:20,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:42:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:20,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:42:20,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:42:20,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678113130] [2022-07-12 11:42:20,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678113130] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:42:20,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:42:20,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:42:20,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916631189] [2022-07-12 11:42:20,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:42:20,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:42:20,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:42:20,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:42:20,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:42:20,991 INFO L87 Difference]: Start difference. First operand 2237 states and 3234 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 11:42:21,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:42:21,069 INFO L93 Difference]: Finished difference Result 2239 states and 3235 transitions. [2022-07-12 11:42:21,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:42:21,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-12 11:42:21,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:42:21,084 INFO L225 Difference]: With dead ends: 2239 [2022-07-12 11:42:21,085 INFO L226 Difference]: Without dead ends: 2236 [2022-07-12 11:42:21,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:42:21,092 INFO L413 NwaCegarLoop]: 3231 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, 3231 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:42:21,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3220 Valid, 3231 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:42:21,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2022-07-12 11:42:21,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2236. [2022-07-12 11:42:21,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 1551 states have (on average 1.3423597678916828) internal successors, (2082), 1593 states have internal predecessors, (2082), 577 states have call successors, (577), 108 states have call predecessors, (577), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-07-12 11:42:21,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 3232 transitions. [2022-07-12 11:42:21,202 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 3232 transitions. Word has length 17 [2022-07-12 11:42:21,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:42:21,202 INFO L495 AbstractCegarLoop]: Abstraction has 2236 states and 3232 transitions. [2022-07-12 11:42:21,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 11:42:21,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 3232 transitions. [2022-07-12 11:42:21,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-12 11:42:21,203 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:42:21,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:42:21,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 11:42:21,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:42:21,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:42:21,204 INFO L85 PathProgramCache]: Analyzing trace with hash -517820206, now seen corresponding path program 1 times [2022-07-12 11:42:21,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:42:21,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125119898] [2022-07-12 11:42:21,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:42:21,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:42:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:21,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:42:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:21,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:42:21,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:42:21,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125119898] [2022-07-12 11:42:21,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125119898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:42:21,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:42:21,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:42:21,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486891956] [2022-07-12 11:42:21,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:42:21,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:42:21,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:42:21,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:42:21,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:42:21,274 INFO L87 Difference]: Start difference. First operand 2236 states and 3232 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 11:42:21,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:42:21,351 INFO L93 Difference]: Finished difference Result 2238 states and 3233 transitions. [2022-07-12 11:42:21,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:42:21,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-07-12 11:42:21,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:42:21,365 INFO L225 Difference]: With dead ends: 2238 [2022-07-12 11:42:21,366 INFO L226 Difference]: Without dead ends: 2235 [2022-07-12 11:42:21,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:42:21,376 INFO L413 NwaCegarLoop]: 3229 mSDtfsCounter, 3217 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3217 SdHoareTripleChecker+Valid, 3229 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:42:21,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3217 Valid, 3229 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:42:21,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2022-07-12 11:42:21,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2235. [2022-07-12 11:42:21,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2235 states, 1551 states have (on average 1.3417150225660863) internal successors, (2081), 1592 states have internal predecessors, (2081), 576 states have call successors, (576), 108 states have call predecessors, (576), 107 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2022-07-12 11:42:21,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 3230 transitions. [2022-07-12 11:42:21,469 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 3230 transitions. Word has length 18 [2022-07-12 11:42:21,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:42:21,469 INFO L495 AbstractCegarLoop]: Abstraction has 2235 states and 3230 transitions. [2022-07-12 11:42:21,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 11:42:21,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3230 transitions. [2022-07-12 11:42:21,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-12 11:42:21,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:42:21,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:42:21,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 11:42:21,471 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:42:21,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:42:21,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1126423667, now seen corresponding path program 1 times [2022-07-12 11:42:21,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:42:21,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641173691] [2022-07-12 11:42:21,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:42:21,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:42:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:21,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:42:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:21,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 11:42:21,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:42:21,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641173691] [2022-07-12 11:42:21,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641173691] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:42:21,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:42:21,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 11:42:21,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854064486] [2022-07-12 11:42:21,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:42:21,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 11:42:21,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:42:21,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 11:42:21,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:42:21,542 INFO L87 Difference]: Start difference. First operand 2235 states and 3230 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 11:42:21,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:42:21,681 INFO L93 Difference]: Finished difference Result 5156 states and 7405 transitions. [2022-07-12 11:42:21,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 11:42:21,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-07-12 11:42:21,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:42:21,701 INFO L225 Difference]: With dead ends: 5156 [2022-07-12 11:42:21,701 INFO L226 Difference]: Without dead ends: 2927 [2022-07-12 11:42:21,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 11:42:21,713 INFO L413 NwaCegarLoop]: 3682 mSDtfsCounter, 1317 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 6488 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:42:21,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 6488 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:42:21,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2022-07-12 11:42:21,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2924. [2022-07-12 11:42:21,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2924 states, 2023 states have (on average 1.3232822540781017) internal successors, (2677), 2085 states have internal predecessors, (2677), 721 states have call successors, (721), 183 states have call predecessors, (721), 179 states have return successors, (731), 698 states have call predecessors, (731), 708 states have call successors, (731) [2022-07-12 11:42:21,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 4129 transitions. [2022-07-12 11:42:21,864 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 4129 transitions. Word has length 19 [2022-07-12 11:42:21,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:42:21,865 INFO L495 AbstractCegarLoop]: Abstraction has 2924 states and 4129 transitions. [2022-07-12 11:42:21,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 11:42:21,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 4129 transitions. [2022-07-12 11:42:21,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-12 11:42:21,868 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:42:21,868 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:42:21,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 11:42:21,869 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:42:21,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:42:21,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1530383769, now seen corresponding path program 1 times [2022-07-12 11:42:21,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:42:21,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922545933] [2022-07-12 11:42:21,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:42:21,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:42:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:21,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:42:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:21,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 11:42:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:21,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 11:42:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:21,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 11:42:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:21,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 11:42:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:21,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 11:42:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:21,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-12 11:42:21,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:42:21,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922545933] [2022-07-12 11:42:21,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922545933] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:42:21,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:42:21,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:42:21,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967159830] [2022-07-12 11:42:21,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:42:21,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:42:21,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:42:21,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:42:22,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:42:22,000 INFO L87 Difference]: Start difference. First operand 2924 states and 4129 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-12 11:42:24,406 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 [] [2022-07-12 11:42:32,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:42:32,068 INFO L93 Difference]: Finished difference Result 6382 states and 9075 transitions. [2022-07-12 11:42:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:42:32,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2022-07-12 11:42:32,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:42:32,086 INFO L225 Difference]: With dead ends: 6382 [2022-07-12 11:42:32,087 INFO L226 Difference]: Without dead ends: 3473 [2022-07-12 11:42:32,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:42:32,098 INFO L413 NwaCegarLoop]: 2764 mSDtfsCounter, 2249 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 4412 mSolverCounterSat, 1617 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2547 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 6030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1617 IncrementalHoareTripleChecker+Valid, 4412 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-07-12 11:42:32,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2547 Valid, 5582 Invalid, 6030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1617 Valid, 4412 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-07-12 11:42:32,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3473 states. [2022-07-12 11:42:32,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3473 to 2979. [2022-07-12 11:42:32,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2062 states have (on average 1.3205625606207565) internal successors, (2723), 2126 states have internal predecessors, (2723), 726 states have call successors, (726), 183 states have call predecessors, (726), 190 states have return successors, (750), 713 states have call predecessors, (750), 713 states have call successors, (750) [2022-07-12 11:42:32,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4199 transitions. [2022-07-12 11:42:32,244 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4199 transitions. Word has length 56 [2022-07-12 11:42:32,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:42:32,245 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 4199 transitions. [2022-07-12 11:42:32,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-12 11:42:32,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4199 transitions. [2022-07-12 11:42:32,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-12 11:42:32,247 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:42:32,247 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:42:32,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 11:42:32,248 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:42:32,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:42:32,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1423408288, now seen corresponding path program 1 times [2022-07-12 11:42:32,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:42:32,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859180354] [2022-07-12 11:42:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:42:32,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:42:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:32,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:42:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 11:42:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:32,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 11:42:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:32,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 11:42:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:32,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 11:42:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:32,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:42:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:32,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-12 11:42:32,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:42:32,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859180354] [2022-07-12 11:42:32,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859180354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:42:32,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:42:32,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:42:32,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986917878] [2022-07-12 11:42:32,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:42:32,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:42:32,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:42:32,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:42:32,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:42:32,351 INFO L87 Difference]: Start difference. First operand 2979 states and 4199 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 11:42:34,582 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 [] [2022-07-12 11:42:37,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:42:37,548 INFO L93 Difference]: Finished difference Result 6043 states and 8621 transitions. [2022-07-12 11:42:37,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 11:42:37,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 59 [2022-07-12 11:42:37,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:42:37,563 INFO L225 Difference]: With dead ends: 6043 [2022-07-12 11:42:37,563 INFO L226 Difference]: Without dead ends: 3079 [2022-07-12 11:42:37,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:42:37,579 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 1199 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 627 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 5461 SdHoareTripleChecker+Invalid, 2975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:42:37,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 5461 Invalid, 2975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 2347 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-07-12 11:42:37,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3079 states. [2022-07-12 11:42:37,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3079 to 2979. [2022-07-12 11:42:37,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2062 states have (on average 1.3176527643064986) internal successors, (2717), 2126 states have internal predecessors, (2717), 726 states have call successors, (726), 183 states have call predecessors, (726), 190 states have return successors, (750), 713 states have call predecessors, (750), 713 states have call successors, (750) [2022-07-12 11:42:37,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4193 transitions. [2022-07-12 11:42:37,708 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4193 transitions. Word has length 59 [2022-07-12 11:42:37,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:42:37,709 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 4193 transitions. [2022-07-12 11:42:37,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 11:42:37,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4193 transitions. [2022-07-12 11:42:37,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 11:42:37,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:42:37,721 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:42:37,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 11:42:37,721 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:42:37,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:42:37,722 INFO L85 PathProgramCache]: Analyzing trace with hash -510939004, now seen corresponding path program 1 times [2022-07-12 11:42:37,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:42:37,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142777133] [2022-07-12 11:42:37,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:42:37,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:42:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:37,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:42:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:37,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:42:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 11:42:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:37,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:42:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 11:42:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:37,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:42:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:37,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-12 11:42:37,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:42:37,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142777133] [2022-07-12 11:42:37,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142777133] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:42:37,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:42:37,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:42:37,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543152025] [2022-07-12 11:42:37,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:42:37,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:42:37,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:42:37,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:42:37,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:42:37,855 INFO L87 Difference]: Start difference. First operand 2979 states and 4193 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-12 11:42:40,140 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 [] [2022-07-12 11:42:42,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:42:42,265 INFO L93 Difference]: Finished difference Result 5069 states and 7078 transitions. [2022-07-12 11:42:42,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:42:42,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 65 [2022-07-12 11:42:42,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:42:42,276 INFO L225 Difference]: With dead ends: 5069 [2022-07-12 11:42:42,276 INFO L226 Difference]: Without dead ends: 2527 [2022-07-12 11:42:42,286 INFO L412 NwaCegarLoop]: 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 [2022-07-12 11:42:42,287 INFO L413 NwaCegarLoop]: 2691 mSDtfsCounter, 2867 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 1200 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 3660 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1200 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:42:42,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3130 Valid, 3660 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1200 Valid, 1490 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-07-12 11:42:42,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2527 states. [2022-07-12 11:42:42,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2527 to 2408. [2022-07-12 11:42:42,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2408 states, 1673 states have (on average 1.306634787806336) internal successors, (2186), 1719 states have internal predecessors, (2186), 569 states have call successors, (569), 170 states have call predecessors, (569), 165 states have return successors, (554), 547 states have call predecessors, (554), 554 states have call successors, (554) [2022-07-12 11:42:42,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 3309 transitions. [2022-07-12 11:42:42,420 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 3309 transitions. Word has length 65 [2022-07-12 11:42:42,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:42:42,421 INFO L495 AbstractCegarLoop]: Abstraction has 2408 states and 3309 transitions. [2022-07-12 11:42:42,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-12 11:42:42,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 3309 transitions. [2022-07-12 11:42:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 11:42:42,424 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:42:42,424 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:42:42,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 11:42:42,425 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:42:42,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:42:42,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2092234527, now seen corresponding path program 1 times [2022-07-12 11:42:42,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:42:42,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103937188] [2022-07-12 11:42:42,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:42:42,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:42:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:42,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:42:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:42,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 11:42:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:42,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 11:42:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 11:42:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:42,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 11:42:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:42,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:42:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:42:42,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-12 11:42:42,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:42:42,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103937188] [2022-07-12 11:42:42,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103937188] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:42:42,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:42:42,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 11:42:42,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407911753] [2022-07-12 11:42:42,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:42:42,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 11:42:42,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:42:42,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 11:42:42,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:42:42,583 INFO L87 Difference]: Start difference. First operand 2408 states and 3309 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 11:42:45,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:42:47,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:42:49,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:42:51,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:42:56,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:42:56,421 INFO L93 Difference]: Finished difference Result 2557 states and 3525 transitions. [2022-07-12 11:42:56,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 11:42:56,422 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 65 [2022-07-12 11:42:56,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:42:56,429 INFO L225 Difference]: With dead ends: 2557 [2022-07-12 11:42:56,429 INFO L226 Difference]: Without dead ends: 2547 [2022-07-12 11:42:56,430 INFO L412 NwaCegarLoop]: 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 [2022-07-12 11:42:56,430 INFO L413 NwaCegarLoop]: 2384 mSDtfsCounter, 1145 mSDsluCounter, 4991 mSDsCounter, 0 mSdLazyCounter, 6746 mSolverCounterSat, 502 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 7375 SdHoareTripleChecker+Invalid, 7252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 6746 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-07-12 11:42:56,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 7375 Invalid, 7252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 6746 Invalid, 4 Unknown, 0 Unchecked, 13.7s Time] [2022-07-12 11:42:56,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2022-07-12 11:42:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2413. [2022-07-12 11:42:56,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2413 states, 1677 states have (on average 1.3059033989266546) internal successors, (2190), 1723 states have internal predecessors, (2190), 569 states have call successors, (569), 170 states have call predecessors, (569), 166 states have return successors, (557), 548 states have call predecessors, (557), 554 states have call successors, (557) [2022-07-12 11:42:56,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 3316 transitions. [2022-07-12 11:42:56,498 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 3316 transitions. Word has length 65 [2022-07-12 11:42:56,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:42:56,498 INFO L495 AbstractCegarLoop]: Abstraction has 2413 states and 3316 transitions. [2022-07-12 11:42:56,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-12 11:42:56,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 3316 transitions. [2022-07-12 11:42:56,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 11:42:56,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:42:56,500 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:42:56,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 11:42:56,501 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:42:56,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:42:56,501 INFO L85 PathProgramCache]: Analyzing trace with hash -922869091, now seen corresponding path program 1 times [2022-07-12 11:42:56,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:42:56,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008423732] [2022-07-12 11:42:56,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:42:56,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:42:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 11:42:56,582 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 11:42:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 11:42:56,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 11:42:56,700 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 11:42:56,701 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 11:42:56,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 11:42:56,704 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:42:56,707 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 11:42:56,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 11:42:56 BoogieIcfgContainer [2022-07-12 11:42:56,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 11:42:56,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 11:42:56,781 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 11:42:56,781 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 11:42:56,781 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:42:19" (3/4) ... [2022-07-12 11:42:56,783 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 11:42:56,783 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 11:42:56,784 INFO L158 Benchmark]: Toolchain (without parser) took 45786.88ms. Allocated memory was 111.1MB in the beginning and 637.5MB in the end (delta: 526.4MB). Free memory was 67.0MB in the beginning and 378.1MB in the end (delta: -311.1MB). Peak memory consumption was 214.4MB. Max. memory is 16.1GB. [2022-07-12 11:42:56,784 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 11:42:56,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1972.88ms. Allocated memory was 111.1MB in the beginning and 209.7MB in the end (delta: 98.6MB). Free memory was 66.7MB in the beginning and 132.9MB in the end (delta: -66.2MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2022-07-12 11:42:56,784 INFO L158 Benchmark]: Boogie Procedure Inliner took 231.19ms. Allocated memory is still 209.7MB. Free memory was 132.9MB in the beginning and 97.2MB in the end (delta: 35.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-07-12 11:42:56,785 INFO L158 Benchmark]: Boogie Preprocessor took 232.71ms. Allocated memory is still 209.7MB. Free memory was 97.2MB in the beginning and 101.4MB in the end (delta: -4.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-12 11:42:56,785 INFO L158 Benchmark]: RCFGBuilder took 6408.41ms. Allocated memory was 209.7MB in the beginning and 364.9MB in the end (delta: 155.2MB). Free memory was 101.4MB in the beginning and 144.1MB in the end (delta: -42.7MB). Peak memory consumption was 146.0MB. Max. memory is 16.1GB. [2022-07-12 11:42:56,785 INFO L158 Benchmark]: TraceAbstraction took 36931.90ms. Allocated memory was 364.9MB in the beginning and 637.5MB in the end (delta: 272.6MB). Free memory was 143.1MB in the beginning and 378.1MB in the end (delta: -235.0MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2022-07-12 11:42:56,786 INFO L158 Benchmark]: Witness Printer took 2.83ms. Allocated memory is still 637.5MB. Free memory is still 378.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 11:42:56,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1972.88ms. Allocated memory was 111.1MB in the beginning and 209.7MB in the end (delta: 98.6MB). Free memory was 66.7MB in the beginning and 132.9MB in the end (delta: -66.2MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 231.19ms. Allocated memory is still 209.7MB. Free memory was 132.9MB in the beginning and 97.2MB in the end (delta: 35.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 232.71ms. Allocated memory is still 209.7MB. Free memory was 97.2MB in the beginning and 101.4MB in the end (delta: -4.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 6408.41ms. Allocated memory was 209.7MB in the beginning and 364.9MB in the end (delta: 155.2MB). Free memory was 101.4MB in the beginning and 144.1MB in the end (delta: -42.7MB). Peak memory consumption was 146.0MB. Max. memory is 16.1GB. * TraceAbstraction took 36931.90ms. Allocated memory was 364.9MB in the beginning and 637.5MB in the end (delta: 272.6MB). Free memory was 143.1MB in the beginning and 378.1MB in the end (delta: -235.0MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Witness Printer took 2.83ms. Allocated memory is still 637.5MB. Free memory is still 378.1MB. 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=1, 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=1, 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=1, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, \result={18446744073709551617:-4}, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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:-4}, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L6412] RET, EXPR get_current() VAL [\old(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, dev={18446744073709551615:-17416}, dev={18446744073709551615:-17416}, experimental_zcopytx=0, get_current()={18446744073709551617:-4}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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:-4}, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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:-4}, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=1, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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(bit = (int )write_page & 7)=18446744073709551619, \old(ldv_mutex_mutex)=2, __this_module={18446744073709551616:18446744073709551618}, bit = (int )write_page & 7=18446744073709551619, 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, 2248 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 36.8s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 34.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 19513 SdHoareTripleChecker+Valid, 32.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18449 mSDsluCounter, 38271 SdHoareTripleChecker+Invalid, 30.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14082 mSDsCounter, 3950 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15008 IncrementalHoareTripleChecker+Invalid, 18965 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3950 mSolverCounterUnsat, 24189 mSDtfsCounter, 15008 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 7 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=2979occurred 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: 1.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 850 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 307 ConstructedInterpolants, 0 QuantifiedInterpolants, 487 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-12 11:42:56,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/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-?-6c24879 [2022-07-12 11:42:58,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:42:58,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:42:58,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:42:58,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:42:58,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:42:58,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:42:58,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:42:58,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:42:58,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:42:58,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:42:58,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:42:58,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:42:58,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:42:58,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:42:58,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:42:58,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:42:58,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:42:58,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:42:58,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:42:58,516 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:42:58,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:42:58,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:42:58,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:42:58,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:42:58,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:42:58,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:42:58,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:42:58,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:42:58,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:42:58,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:42:58,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:42:58,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:42:58,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:42:58,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:42:58,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:42:58,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:42:58,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:42:58,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:42:58,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:42:58,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:42:58,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:42:58,537 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 11:42:58,561 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:42:58,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:42:58,562 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:42:58,562 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:42:58,562 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:42:58,563 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:42:58,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:42:58,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:42:58,563 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:42:58,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:42:58,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:42:58,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:42:58,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:42:58,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:42:58,565 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 11:42:58,565 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 11:42:58,565 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 11:42:58,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:42:58,565 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:42:58,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:42:58,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:42:58,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:42:58,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:42:58,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:42:58,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:42:58,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:42:58,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:42:58,567 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 11:42:58,567 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 11:42:58,567 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:42:58,567 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:42:58,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:42:58,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 11:42:58,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f [2022-07-12 11:42:58,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:42:58,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:42:58,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:42:58,853 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:42:58,854 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:42:58,855 INFO L432 ainManager$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 [2022-07-12 11:42:58,899 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd03e5c95/59377d13d63f4c73a6b23dd992a26cb4/FLAG479741776 [2022-07-12 11:42:59,588 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:42:59,589 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 [2022-07-12 11:42:59,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd03e5c95/59377d13d63f4c73a6b23dd992a26cb4/FLAG479741776 [2022-07-12 11:42:59,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd03e5c95/59377d13d63f4c73a6b23dd992a26cb4 [2022-07-12 11:42:59,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:42:59,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:42:59,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:42:59,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:42:59,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:42:59,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:42:59" (1/1) ... [2022-07-12 11:42:59,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f78dd70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:42:59, skipping insertion in model container [2022-07-12 11:42:59,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:42:59" (1/1) ... [2022-07-12 11:42:59,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:43:00,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:43:01,266 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.ArithmeticException: BigInteger out of int range at java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1009) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:729) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 11:43:01,269 INFO L158 Benchmark]: Toolchain (without parser) took 1326.51ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 39.8MB in the beginning and 47.0MB in the end (delta: -7.1MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2022-07-12 11:43:01,270 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 50.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 11:43:01,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1321.00ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 39.5MB in the beginning and 47.0MB in the end (delta: -7.5MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2022-07-12 11:43:01,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 50.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1321.00ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 39.5MB in the beginning and 47.0MB in the end (delta: -7.5MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: ArithmeticException: BigInteger out of int range: java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range