./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 35987657 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-?-3598765 [2022-07-21 10:16:32,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:16:32,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:16:32,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:16:32,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:16:32,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:16:32,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:16:32,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:16:32,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:16:32,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:16:32,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:16:32,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:16:32,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:16:32,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:16:32,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:16:32,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:16:32,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:16:32,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:16:32,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:16:32,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:16:32,327 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:16:32,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:16:32,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:16:32,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:16:32,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:16:32,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:16:32,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:16:32,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:16:32,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:16:32,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:16:32,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:16:32,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:16:32,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:16:32,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:16:32,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:16:32,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:16:32,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:16:32,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:16:32,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:16:32,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:16:32,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:16:32,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:16:32,353 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 10:16:32,384 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:16:32,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:16:32,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:16:32,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:16:32,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:16:32,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:16:32,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:16:32,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:16:32,387 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:16:32,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:16:32,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 10:16:32,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:16:32,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:16:32,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:16:32,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:16:32,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:16:32,390 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:16:32,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:16:32,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:16:32,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:16:32,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:16:32,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:16:32,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:16:32,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:16:32,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:16:32,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 10:16:32,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 10:16:32,392 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:16:32,393 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:16:32,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:16:32,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f [2022-07-21 10:16:32,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:16:32,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:16:32,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:16:32,761 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:16:32,762 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:16:32,764 INFO L432 ainManager$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 [2022-07-21 10:16:32,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae8f1538/43cf857788694b2fbf1b6b33fb497ce0/FLAGb4ab59f3c [2022-07-21 10:16:33,593 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:16:33,594 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 [2022-07-21 10:16:33,647 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae8f1538/43cf857788694b2fbf1b6b33fb497ce0/FLAGb4ab59f3c [2022-07-21 10:16:34,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae8f1538/43cf857788694b2fbf1b6b33fb497ce0 [2022-07-21 10:16:34,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:16:34,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:16:34,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:16:34,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:16:34,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:16:34,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:16:34" (1/1) ... [2022-07-21 10:16:34,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f00561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:34, skipping insertion in model container [2022-07-21 10:16:34,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:16:34" (1/1) ... [2022-07-21 10:16:34,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:16:34,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:16:36,080 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] [2022-07-21 10:16:36,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:16:36,175 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:16:36,595 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] [2022-07-21 10:16:36,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:16:36,759 INFO L208 MainTranslator]: Completed translation [2022-07-21 10:16:36,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36 WrapperNode [2022-07-21 10:16:36,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 10:16:36,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 10:16:36,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 10:16:36,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 10:16:36,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:36,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,061 INFO L137 Inliner]: procedures = 335, calls = 2629, calls flagged for inlining = 138, calls inlined = 130, statements flattened = 6671 [2022-07-21 10:16:37,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 10:16:37,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 10:16:37,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 10:16:37,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 10:16:37,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 10:16:37,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 10:16:37,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 10:16:37,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 10:16:37,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (1/1) ... [2022-07-21 10:16:37,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:16:37,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:16:37,401 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) [2022-07-21 10:16:37,412 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 [2022-07-21 10:16:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used_and_signal [2022-07-21 10:16:37,439 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used_and_signal [2022-07-21 10:16:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2022-07-21 10:16:37,440 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2022-07-21 10:16:37,440 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_net [2022-07-21 10:16:37,440 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_net [2022-07-21 10:16:37,440 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs [2022-07-21 10:16:37,440 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs [2022-07-21 10:16:37,440 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-21 10:16:37,440 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-21 10:16:37,441 INFO L130 BoogieDeclarations]: Found specification of procedure vq_access_ok [2022-07-21 10:16:37,441 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_access_ok [2022-07-21 10:16:37,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 10:16:37,441 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_flush [2022-07-21 10:16:37,441 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_flush [2022-07-21 10:16:37,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 10:16:37,441 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-07-21 10:16:37,442 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-07-21 10:16:37,442 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_check_owner [2022-07-21 10:16:37,442 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_check_owner [2022-07-21 10:16:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure log_write [2022-07-21 10:16:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure log_write [2022-07-21 10:16:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx [2022-07-21 10:16:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx [2022-07-21 10:16:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-21 10:16:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-21 10:16:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-21 10:16:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-21 10:16:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 10:16:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 10:16:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_reset [2022-07-21 10:16:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_reset [2022-07-21 10:16:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 10:16:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 10:16:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure vq_log_access_ok [2022-07-21 10:16:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_log_access_ok [2022-07-21 10:16:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 10:16:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 10:16:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 10:16:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 10:16:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-21 10:16:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-21 10:16:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-21 10:16:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure __vhost_add_used_n [2022-07-21 10:16:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __vhost_add_used_n [2022-07-21 10:16:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_start [2022-07-21 10:16:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_start [2022-07-21 10:16:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_queue [2022-07-21 10:16:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_queue [2022-07-21 10:16:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx [2022-07-21 10:16:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx [2022-07-21 10:16:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_kick [2022-07-21 10:16:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_kick [2022-07-21 10:16:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_open [2022-07-21 10:16:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_open [2022-07-21 10:16:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 10:16:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 10:16:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 10:16:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 10:16:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-21 10:16:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-21 10:16:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_fget [2022-07-21 10:16:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_fget [2022-07-21 10:16:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_init [2022-07-21 10:16:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_init [2022-07-21 10:16:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 10:16:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 10:16:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 10:16:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure vq_memory_access_ok [2022-07-21 10:16:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok [2022-07-21 10:16:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure move_iovec_hdr [2022-07-21 10:16:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure move_iovec_hdr [2022-07-21 10:16:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 10:16:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 10:16:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 10:16:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_queue [2022-07-21 10:16:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_queue [2022-07-21 10:16:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop [2022-07-21 10:16:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop [2022-07-21 10:16:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 10:16:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 10:16:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup [2022-07-21 10:16:37,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup [2022-07-21 10:16:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_callback [2022-07-21 10:16:37,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_callback [2022-07-21 10:16:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-21 10:16:37,517 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-21 10:16:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush_vq [2022-07-21 10:16:37,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush_vq [2022-07-21 10:16:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop_vq [2022-07-21 10:16:37,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop_vq [2022-07-21 10:16:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-21 10:16:37,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-21 10:16:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 10:16:37,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 10:16:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 10:16:37,518 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 10:16:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-07-21 10:16:37,518 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-07-21 10:16:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 10:16:37,518 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 10:16:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure next_desc [2022-07-21 10:16:37,518 INFO L138 BoogieDeclarations]: Found implementation of procedure next_desc [2022-07-21 10:16:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2022-07-21 10:16:37,518 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2022-07-21 10:16:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_stop [2022-07-21 10:16:37,519 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_stop [2022-07-21 10:16:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-21 10:16:37,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-21 10:16:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-07-21 10:16:37,519 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-07-21 10:16:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 10:16:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-21 10:16:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-21 10:16:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_has_feature [2022-07-21 10:16:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_has_feature [2022-07-21 10:16:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-21 10:16:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-21 10:16:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 10:16:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2022-07-21 10:16:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2022-07-21 10:16:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 10:16:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_init [2022-07-21 10:16:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_init [2022-07-21 10:16:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget [2022-07-21 10:16:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget [2022-07-21 10:16:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush [2022-07-21 10:16:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush [2022-07-21 10:16:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-21 10:16:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-21 10:16:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 10:16:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 10:16:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-21 10:16:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put [2022-07-21 10:16:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put [2022-07-21 10:16:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 10:16:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-21 10:16:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-21 10:16:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2022-07-21 10:16:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2022-07-21 10:16:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2022-07-21 10:16:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2022-07-21 10:16:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure translate_desc [2022-07-21 10:16:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_desc [2022-07-21 10:16:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_put [2022-07-21 10:16:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put [2022-07-21 10:16:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_ioctl [2022-07-21 10:16:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_ioctl [2022-07-21 10:16:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_disable_vq [2022-07-21 10:16:37,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_disable_vq [2022-07-21 10:16:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure mmput [2022-07-21 10:16:37,526 INFO L138 BoogieDeclarations]: Found implementation of procedure mmput [2022-07-21 10:16:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-21 10:16:37,526 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-21 10:16:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-21 10:16:37,526 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-21 10:16:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 10:16:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 10:16:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put_and_wait [2022-07-21 10:16:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put_and_wait [2022-07-21 10:16:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-21 10:16:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-21 10:16:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 10:16:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2022-07-21 10:16:37,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2022-07-21 10:16:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-21 10:16:37,528 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-21 10:16:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_get_vq_desc [2022-07-21 10:16:37,528 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_get_vq_desc [2022-07-21 10:16:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 10:16:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_signal [2022-07-21 10:16:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_signal [2022-07-21 10:16:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_enable_notify [2022-07-21 10:16:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_enable_notify [2022-07-21 10:16:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_stop [2022-07-21 10:16:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_stop [2022-07-21 10:16:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 10:16:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-21 10:16:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-07-21 10:16:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 10:16:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure memory_access_ok [2022-07-21 10:16:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_access_ok [2022-07-21 10:16:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-21 10:16:37,531 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-21 10:16:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-21 10:16:37,531 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-21 10:16:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_seq_done [2022-07-21 10:16:37,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done [2022-07-21 10:16:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 10:16:37,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 10:16:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_release [2022-07-21 10:16:37,532 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_release [2022-07-21 10:16:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-21 10:16:37,532 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-21 10:16:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_disable_notify [2022-07-21 10:16:37,532 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_disable_notify [2022-07-21 10:16:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-21 10:16:37,532 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-21 10:16:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 10:16:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 10:16:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_update_used_flags [2022-07-21 10:16:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags [2022-07-21 10:16:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_discard_vq_desc [2022-07-21 10:16:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_discard_vq_desc [2022-07-21 10:16:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-07-21 10:16:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-07-21 10:16:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_flush [2022-07-21 10:16:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_flush [2022-07-21 10:16:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2022-07-21 10:16:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2022-07-21 10:16:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 10:16:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 10:16:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure log_access_ok [2022-07-21 10:16:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure log_access_ok [2022-07-21 10:16:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-21 10:16:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-21 10:16:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 10:16:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 10:16:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_signal [2022-07-21 10:16:37,535 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_signal [2022-07-21 10:16:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 10:16:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_signal_used [2022-07-21 10:16:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_signal_used [2022-07-21 10:16:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_start [2022-07-21 10:16:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_start [2022-07-21 10:16:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-21 10:16:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-21 10:16:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 10:16:37,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 10:16:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 10:16:37,537 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 10:16:38,305 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 10:16:38,308 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 10:16:42,253 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 [2022-07-21 10:16:42,254 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; [2022-07-21 10:16:42,254 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 [2022-07-21 10:16:42,254 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; [2022-07-21 10:16:42,254 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume __copy_to_user_#t~switch137#1; [2022-07-21 10:16:42,254 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume !__copy_to_user_#t~switch137#1; [2022-07-21 10:16:42,254 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; [2022-07-21 10:16:42,254 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; [2022-07-21 10:16:42,254 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume __copy_to_user_#t~switch137#1; [2022-07-21 10:16:42,254 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := true; [2022-07-21 10:16:42,255 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5825: havoc __copy_to_user_#t~switch137#1; [2022-07-21 10:16:42,255 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; [2022-07-21 10:16:42,255 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; [2022-07-21 10:16:42,255 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume __copy_to_user_#t~switch137#1; [2022-07-21 10:16:42,255 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; [2022-07-21 10:16:42,255 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; [2022-07-21 10:16:42,255 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; [2022-07-21 10:16:42,256 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 [2022-07-21 10:16:42,256 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; [2022-07-21 10:16:42,256 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; [2022-07-21 10:16:42,256 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); [2022-07-21 10:16:42,256 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; [2022-07-21 10:16:42,256 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; [2022-07-21 10:16:42,256 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; [2022-07-21 10:16:42,256 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; [2022-07-21 10:16:43,951 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 [2022-07-21 10:16:43,951 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; [2022-07-21 10:16:43,951 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; [2022-07-21 10:16:43,951 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; [2022-07-21 10:16:43,951 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5760: havoc __copy_from_user_#t~switch132#1; [2022-07-21 10:16:43,952 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume __copy_from_user_#t~switch132#1; [2022-07-21 10:16:43,952 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := true; [2022-07-21 10:16:43,952 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 [2022-07-21 10:16:43,952 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; [2022-07-21 10:16:43,952 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; [2022-07-21 10:16:43,952 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; [2022-07-21 10:16:43,952 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; [2022-07-21 10:16:43,952 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; [2022-07-21 10:16:43,952 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; [2022-07-21 10:16:43,952 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; [2022-07-21 10:16:43,952 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; [2022-07-21 10:16:43,952 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; [2022-07-21 10:16:43,952 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume __copy_from_user_#t~switch132#1; [2022-07-21 10:16:43,953 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume !__copy_from_user_#t~switch132#1; [2022-07-21 10:16:43,953 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); [2022-07-21 10:16:43,953 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 [2022-07-21 10:16:43,953 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; [2022-07-21 10:16:43,953 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; [2022-07-21 10:16:43,953 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume __copy_from_user_#t~switch132#1; [2022-07-21 10:16:43,953 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; [2022-07-21 10:16:44,833 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 10:16:44,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 10:16:44,857 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 10:16:44,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:16:44 BoogieIcfgContainer [2022-07-21 10:16:44,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 10:16:44,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 10:16:44,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 10:16:44,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 10:16:44,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:16:34" (1/3) ... [2022-07-21 10:16:44,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6d8e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:16:44, skipping insertion in model container [2022-07-21 10:16:44,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:16:36" (2/3) ... [2022-07-21 10:16:44,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6d8e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:16:44, skipping insertion in model container [2022-07-21 10:16:44,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:16:44" (3/3) ... [2022-07-21 10:16:44,868 INFO L111 eAbstractionObserver]: Analyzing ICFG main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2022-07-21 10:16:44,880 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 10:16:44,880 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 10:16:44,985 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 10:16:45,003 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@7b4f88d7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@527514a7 [2022-07-21 10:16:45,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 10:16:45,019 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) [2022-07-21 10:16:45,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-21 10:16:45,027 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:45,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:16:45,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:45,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:45,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1613910609, now seen corresponding path program 1 times [2022-07-21 10:16:45,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:45,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461743011] [2022-07-21 10:16:45,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:45,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:45,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:45,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:16:45,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:45,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461743011] [2022-07-21 10:16:45,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461743011] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:45,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:45,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:16:45,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650824039] [2022-07-21 10:16:45,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:45,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:16:45,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:45,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:16:45,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:16:45,484 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) [2022-07-21 10:16:45,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:16:45,767 INFO L93 Difference]: Finished difference Result 4478 states and 6611 transitions. [2022-07-21 10:16:45,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:16:45,770 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 [2022-07-21 10:16:45,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:16:45,811 INFO L225 Difference]: With dead ends: 4478 [2022-07-21 10:16:45,811 INFO L226 Difference]: Without dead ends: 2237 [2022-07-21 10:16:45,834 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 [2022-07-21 10:16:45,838 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 [2022-07-21 10:16:45,839 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] [2022-07-21 10:16:45,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2022-07-21 10:16:46,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 2237. [2022-07-21 10:16:46,029 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) [2022-07-21 10:16:46,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 3234 transitions. [2022-07-21 10:16:46,054 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 3234 transitions. Word has length 16 [2022-07-21 10:16:46,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:16:46,055 INFO L495 AbstractCegarLoop]: Abstraction has 2237 states and 3234 transitions. [2022-07-21 10:16:46,056 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) [2022-07-21 10:16:46,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3234 transitions. [2022-07-21 10:16:46,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-21 10:16:46,058 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:46,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:16:46,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 10:16:46,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:46,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:46,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1507349808, now seen corresponding path program 1 times [2022-07-21 10:16:46,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:46,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813037555] [2022-07-21 10:16:46,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:46,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:46,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:46,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:16:46,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:46,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813037555] [2022-07-21 10:16:46,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813037555] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:46,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:46,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:16:46,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080038645] [2022-07-21 10:16:46,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:46,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:16:46,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:46,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:16:46,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:16:46,202 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) [2022-07-21 10:16:46,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:16:46,306 INFO L93 Difference]: Finished difference Result 2239 states and 3235 transitions. [2022-07-21 10:16:46,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:16:46,307 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 [2022-07-21 10:16:46,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:16:46,328 INFO L225 Difference]: With dead ends: 2239 [2022-07-21 10:16:46,329 INFO L226 Difference]: Without dead ends: 2236 [2022-07-21 10:16:46,334 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 [2022-07-21 10:16:46,335 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 [2022-07-21 10:16:46,337 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] [2022-07-21 10:16:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2022-07-21 10:16:46,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2236. [2022-07-21 10:16:46,417 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) [2022-07-21 10:16:46,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 3232 transitions. [2022-07-21 10:16:46,433 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 3232 transitions. Word has length 17 [2022-07-21 10:16:46,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:16:46,434 INFO L495 AbstractCegarLoop]: Abstraction has 2236 states and 3232 transitions. [2022-07-21 10:16:46,434 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) [2022-07-21 10:16:46,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 3232 transitions. [2022-07-21 10:16:46,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-21 10:16:46,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:46,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:16:46,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 10:16:46,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:46,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:46,437 INFO L85 PathProgramCache]: Analyzing trace with hash -517820206, now seen corresponding path program 1 times [2022-07-21 10:16:46,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:46,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87408269] [2022-07-21 10:16:46,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:46,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:46,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:46,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:16:46,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:46,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87408269] [2022-07-21 10:16:46,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87408269] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:46,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:46,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:16:46,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559301491] [2022-07-21 10:16:46,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:46,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:16:46,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:46,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:16:46,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:16:46,583 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) [2022-07-21 10:16:46,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:16:46,672 INFO L93 Difference]: Finished difference Result 2238 states and 3233 transitions. [2022-07-21 10:16:46,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:16:46,673 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 [2022-07-21 10:16:46,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:16:46,686 INFO L225 Difference]: With dead ends: 2238 [2022-07-21 10:16:46,686 INFO L226 Difference]: Without dead ends: 2235 [2022-07-21 10:16:46,689 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 [2022-07-21 10:16:46,694 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 [2022-07-21 10:16:46,695 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] [2022-07-21 10:16:46,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2022-07-21 10:16:46,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2235. [2022-07-21 10:16:46,783 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) [2022-07-21 10:16:46,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 3230 transitions. [2022-07-21 10:16:46,796 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 3230 transitions. Word has length 18 [2022-07-21 10:16:46,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:16:46,797 INFO L495 AbstractCegarLoop]: Abstraction has 2235 states and 3230 transitions. [2022-07-21 10:16:46,797 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) [2022-07-21 10:16:46,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 3230 transitions. [2022-07-21 10:16:46,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 10:16:46,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:46,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:16:46,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 10:16:46,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:46,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:46,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1126423667, now seen corresponding path program 1 times [2022-07-21 10:16:46,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:46,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930644763] [2022-07-21 10:16:46,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:46,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:46,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:46,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:16:46,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:46,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930644763] [2022-07-21 10:16:46,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930644763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:46,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:46,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:16:46,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107853829] [2022-07-21 10:16:46,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:46,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:16:46,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:46,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:16:46,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:16:46,888 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) [2022-07-21 10:16:47,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:16:47,095 INFO L93 Difference]: Finished difference Result 5156 states and 7405 transitions. [2022-07-21 10:16:47,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:16:47,096 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 [2022-07-21 10:16:47,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:16:47,118 INFO L225 Difference]: With dead ends: 5156 [2022-07-21 10:16:47,118 INFO L226 Difference]: Without dead ends: 2927 [2022-07-21 10:16:47,129 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 [2022-07-21 10:16:47,135 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 [2022-07-21 10:16:47,136 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] [2022-07-21 10:16:47,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2022-07-21 10:16:47,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2924. [2022-07-21 10:16:47,263 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) [2022-07-21 10:16:47,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 4129 transitions. [2022-07-21 10:16:47,278 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 4129 transitions. Word has length 19 [2022-07-21 10:16:47,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:16:47,279 INFO L495 AbstractCegarLoop]: Abstraction has 2924 states and 4129 transitions. [2022-07-21 10:16:47,279 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) [2022-07-21 10:16:47,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 4129 transitions. [2022-07-21 10:16:47,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-21 10:16:47,289 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:47,289 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] [2022-07-21 10:16:47,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 10:16:47,290 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:47,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:47,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1530383769, now seen corresponding path program 1 times [2022-07-21 10:16:47,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:47,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438165800] [2022-07-21 10:16:47,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:47,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:47,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:47,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:16:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:47,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:16:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:47,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:16:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:47,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:16:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:47,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 10:16:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:47,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:16:47,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:47,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438165800] [2022-07-21 10:16:47,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438165800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:47,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:47,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:16:47,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309730697] [2022-07-21 10:16:47,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:47,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:16:47,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:47,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:16:47,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:16:47,427 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) [2022-07-21 10:16:49,915 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 [] [2022-07-21 10:16:57,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:16:57,976 INFO L93 Difference]: Finished difference Result 6382 states and 9075 transitions. [2022-07-21 10:16:57,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 10:16:57,977 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 [2022-07-21 10:16:57,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:16:57,999 INFO L225 Difference]: With dead ends: 6382 [2022-07-21 10:16:58,000 INFO L226 Difference]: Without dead ends: 3473 [2022-07-21 10:16:58,012 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 [2022-07-21 10:16:58,012 INFO L413 NwaCegarLoop]: 2764 mSDtfsCounter, 2250 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 4415 mSolverCounterSat, 1617 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2548 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 6033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1617 IncrementalHoareTripleChecker+Valid, 4415 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:16:58,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2548 Valid, 5582 Invalid, 6033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1617 Valid, 4415 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-07-21 10:16:58,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3473 states. [2022-07-21 10:16:58,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3473 to 2979. [2022-07-21 10:16:58,153 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) [2022-07-21 10:16:58,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4199 transitions. [2022-07-21 10:16:58,170 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4199 transitions. Word has length 56 [2022-07-21 10:16:58,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:16:58,171 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 4199 transitions. [2022-07-21 10:16:58,171 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) [2022-07-21 10:16:58,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4199 transitions. [2022-07-21 10:16:58,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-21 10:16:58,173 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:16:58,173 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] [2022-07-21 10:16:58,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 10:16:58,174 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:16:58,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:16:58,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1423408288, now seen corresponding path program 1 times [2022-07-21 10:16:58,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:16:58,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892784117] [2022-07-21 10:16:58,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:16:58,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:16:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:58,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:16:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:58,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:16:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:58,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:16:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:58,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:16:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:58,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:16:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:58,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:16:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:16:58,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:16:58,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:16:58,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892784117] [2022-07-21 10:16:58,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892784117] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:16:58,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:16:58,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:16:58,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000115423] [2022-07-21 10:16:58,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:16:58,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:16:58,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:16:58,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:16:58,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:16:58,334 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) [2022-07-21 10:17:00,583 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 [] [2022-07-21 10:17:03,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:03,919 INFO L93 Difference]: Finished difference Result 6043 states and 8621 transitions. [2022-07-21 10:17:03,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:17:03,919 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 [2022-07-21 10:17:03,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:03,938 INFO L225 Difference]: With dead ends: 6043 [2022-07-21 10:17:03,938 INFO L226 Difference]: Without dead ends: 3079 [2022-07-21 10:17:03,957 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 [2022-07-21 10:17:03,958 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 1199 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 627 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s 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, 5.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:17:03,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1458 Valid, 5461 Invalid, 2975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 2347 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-07-21 10:17:03,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3079 states. [2022-07-21 10:17:04,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3079 to 2979. [2022-07-21 10:17:04,104 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) [2022-07-21 10:17:04,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4193 transitions. [2022-07-21 10:17:04,120 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4193 transitions. Word has length 59 [2022-07-21 10:17:04,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:04,121 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 4193 transitions. [2022-07-21 10:17:04,122 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) [2022-07-21 10:17:04,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4193 transitions. [2022-07-21 10:17:04,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-21 10:17:04,125 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:04,125 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] [2022-07-21 10:17:04,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 10:17:04,125 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:04,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:04,126 INFO L85 PathProgramCache]: Analyzing trace with hash -510939004, now seen corresponding path program 1 times [2022-07-21 10:17:04,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:17:04,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069994489] [2022-07-21 10:17:04,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:04,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:17:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:04,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:17:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:04,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 10:17:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:04,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:17:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:04,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:17:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:04,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:17:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:04,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:17:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:04,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:17:04,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:17:04,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069994489] [2022-07-21 10:17:04,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069994489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:17:04,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:17:04,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:17:04,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575938119] [2022-07-21 10:17:04,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:17:04,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:17:04,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:17:04,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:17:04,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:17:04,297 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) [2022-07-21 10:17:06,568 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 [] [2022-07-21 10:17:08,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:08,843 INFO L93 Difference]: Finished difference Result 5069 states and 7078 transitions. [2022-07-21 10:17:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:17:08,844 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 [2022-07-21 10:17:08,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:08,856 INFO L225 Difference]: With dead ends: 5069 [2022-07-21 10:17:08,856 INFO L226 Difference]: Without dead ends: 2527 [2022-07-21 10:17:08,866 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 [2022-07-21 10:17:08,867 INFO L413 NwaCegarLoop]: 2690 mSDtfsCounter, 2867 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 1200 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 3657 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1200 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-21 10:17:08,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3130 Valid, 3657 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1200 Valid, 1490 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-07-21 10:17:08,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2527 states. [2022-07-21 10:17:08,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2527 to 2408. [2022-07-21 10:17:08,959 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) [2022-07-21 10:17:08,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 3309 transitions. [2022-07-21 10:17:08,968 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 3309 transitions. Word has length 65 [2022-07-21 10:17:08,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:08,969 INFO L495 AbstractCegarLoop]: Abstraction has 2408 states and 3309 transitions. [2022-07-21 10:17:08,969 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) [2022-07-21 10:17:08,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 3309 transitions. [2022-07-21 10:17:08,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-21 10:17:08,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:08,972 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] [2022-07-21 10:17:08,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 10:17:08,973 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:08,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:08,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2092234527, now seen corresponding path program 1 times [2022-07-21 10:17:08,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:17:08,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359847515] [2022-07-21 10:17:08,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:08,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:17:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:09,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:17:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:09,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:17:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:09,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:17:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:09,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:17:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:09,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:17:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:09,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:17:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:17:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 10:17:09,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:17:09,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359847515] [2022-07-21 10:17:09,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359847515] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:17:09,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:17:09,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 10:17:09,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003204816] [2022-07-21 10:17:09,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:17:09,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 10:17:09,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:17:09,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 10:17:09,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 10:17:09,156 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) [2022-07-21 10:17:11,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:13,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:15,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:17,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:17:23,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:17:23,160 INFO L93 Difference]: Finished difference Result 2557 states and 3525 transitions. [2022-07-21 10:17:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 10:17:23,160 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 [2022-07-21 10:17:23,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:17:23,173 INFO L225 Difference]: With dead ends: 2557 [2022-07-21 10:17:23,173 INFO L226 Difference]: Without dead ends: 2547 [2022-07-21 10:17:23,174 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 [2022-07-21 10:17:23,174 INFO L413 NwaCegarLoop]: 2385 mSDtfsCounter, 1145 mSDsluCounter, 4996 mSDsCounter, 0 mSdLazyCounter, 6746 mSolverCounterSat, 502 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 7381 SdHoareTripleChecker+Invalid, 7252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 6746 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-07-21 10:17:23,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 7381 Invalid, 7252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 6746 Invalid, 4 Unknown, 0 Unchecked, 13.8s Time] [2022-07-21 10:17:23,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2022-07-21 10:17:23,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2413. [2022-07-21 10:17:23,290 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) [2022-07-21 10:17:23,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 3316 transitions. [2022-07-21 10:17:23,298 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 3316 transitions. Word has length 65 [2022-07-21 10:17:23,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:17:23,299 INFO L495 AbstractCegarLoop]: Abstraction has 2413 states and 3316 transitions. [2022-07-21 10:17:23,299 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) [2022-07-21 10:17:23,299 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 3316 transitions. [2022-07-21 10:17:23,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-21 10:17:23,301 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:17:23,302 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] [2022-07-21 10:17:23,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 10:17:23,302 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:17:23,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:17:23,303 INFO L85 PathProgramCache]: Analyzing trace with hash -922869091, now seen corresponding path program 1 times [2022-07-21 10:17:23,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:17:23,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380759532] [2022-07-21 10:17:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:17:23,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:17:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 10:17:23,426 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 10:17:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 10:17:23,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 10:17:23,591 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 10:17:23,592 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 10:17:23,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 10:17:23,598 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:17:23,601 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 10:17:23,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:17:23 BoogieIcfgContainer [2022-07-21 10:17:23,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 10:17:23,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 10:17:23,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 10:17:23,677 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 10:17:23,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:16:44" (3/4) ... [2022-07-21 10:17:23,680 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 10:17:23,680 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 10:17:23,681 INFO L158 Benchmark]: Toolchain (without parser) took 49566.48ms. Allocated memory was 52.4MB in the beginning and 771.8MB in the end (delta: 719.3MB). Free memory was 26.2MB in the beginning and 549.8MB in the end (delta: -523.6MB). Peak memory consumption was 194.6MB. Max. memory is 16.1GB. [2022-07-21 10:17:23,681 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory is still 33.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 10:17:23,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2645.01ms. Allocated memory was 52.4MB in the beginning and 119.5MB in the end (delta: 67.1MB). Free memory was 26.0MB in the beginning and 37.8MB in the end (delta: -11.8MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2022-07-21 10:17:23,682 INFO L158 Benchmark]: Boogie Procedure Inliner took 299.99ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 37.8MB in the beginning and 65.2MB in the end (delta: -27.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-07-21 10:17:23,682 INFO L158 Benchmark]: Boogie Preprocessor took 311.32ms. Allocated memory is still 161.5MB. Free memory was 65.2MB in the beginning and 52.6MB in the end (delta: 12.6MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2022-07-21 10:17:23,682 INFO L158 Benchmark]: RCFGBuilder took 7486.24ms. Allocated memory was 161.5MB in the beginning and 528.5MB in the end (delta: 367.0MB). Free memory was 52.6MB in the beginning and 423.4MB in the end (delta: -370.8MB). Peak memory consumption was 143.2MB. Max. memory is 16.1GB. [2022-07-21 10:17:23,683 INFO L158 Benchmark]: TraceAbstraction took 38813.67ms. Allocated memory was 528.5MB in the beginning and 771.8MB in the end (delta: 243.3MB). Free memory was 423.4MB in the beginning and 549.8MB in the end (delta: -126.4MB). Peak memory consumption was 115.8MB. Max. memory is 16.1GB. [2022-07-21 10:17:23,683 INFO L158 Benchmark]: Witness Printer took 3.30ms. Allocated memory is still 771.8MB. Free memory is still 549.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 10:17:23,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory is still 33.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2645.01ms. Allocated memory was 52.4MB in the beginning and 119.5MB in the end (delta: 67.1MB). Free memory was 26.0MB in the beginning and 37.8MB in the end (delta: -11.8MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 299.99ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 37.8MB in the beginning and 65.2MB in the end (delta: -27.4MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 311.32ms. Allocated memory is still 161.5MB. Free memory was 65.2MB in the beginning and 52.6MB in the end (delta: 12.6MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * RCFGBuilder took 7486.24ms. Allocated memory was 161.5MB in the beginning and 528.5MB in the end (delta: 367.0MB). Free memory was 52.6MB in the beginning and 423.4MB in the end (delta: -370.8MB). Peak memory consumption was 143.2MB. Max. memory is 16.1GB. * TraceAbstraction took 38813.67ms. Allocated memory was 528.5MB in the beginning and 771.8MB in the end (delta: 243.3MB). Free memory was 423.4MB in the beginning and 549.8MB in the end (delta: -126.4MB). Peak memory consumption was 115.8MB. Max. memory is 16.1GB. * Witness Printer took 3.30ms. Allocated memory is still 771.8MB. Free memory is still 549.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10992]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 10595. Possible FailurePath: [L5971] static unsigned int vhost_zcopy_mask ; [L9348] static int experimental_zcopytx ; [L10590-L10593] static struct file_operations const vhost_net_fops = {& __this_module, & noop_llseek, 0, 0, 0, 0, 0, 0, & vhost_net_ioctl, & vhost_net_compat_ioctl, 0, & vhost_net_open, 0, & vhost_net_release, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L10594-L10595] static struct miscdevice vhost_net_misc = {238, "vhost-net", & vhost_net_fops, {0, 0}, 0, 0, 0, (unsigned short)0}; [L10620] int LDV_IN_INTERRUPT ; [L11002] static int ldv_mutex_cred_guard_mutex ; [L11109] static int ldv_mutex_lock ; [L11216] static int ldv_mutex_mtx ; [L11323] static int ldv_mutex_mutex ; VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=0, ldv_mutex_cred_guard_mutex=0, ldv_mutex_lock=0, ldv_mutex_mtx=0, ldv_mutex_mutex=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10623] struct inode *var_group1 ; [L10624] struct file *var_group2 ; [L10625] unsigned int var_vhost_net_ioctl_27_p1 ; [L10626] unsigned long var_vhost_net_ioctl_27_p2 ; [L10627] unsigned int var_vhost_net_compat_ioctl_28_p1 ; [L10628] unsigned long var_vhost_net_compat_ioctl_28_p2 ; [L10629] int res_vhost_net_open_13 ; [L10630] int ldv_s_vhost_net_fops_file_operations ; [L10631] int tmp ; [L10632] int tmp___0 ; [L10633] int tmp___1 ; [L10635] ldv_s_vhost_net_fops_file_operations = 0 [L10636] LDV_IN_INTERRUPT = 1 [L10637] CALL ldv_initialize() [L11433] ldv_mutex_cred_guard_mutex = 1 [L11434] ldv_mutex_lock = 1 [L11435] ldv_mutex_mtx = 1 [L11436] ldv_mutex_mutex = 1 VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10637] RET ldv_initialize() [L10638] FCALL ldv_handler_precall() VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10639] CALL, EXPR vhost_net_init() [L10598] int tmp ; VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10600] COND FALSE !(experimental_zcopytx != 0) VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10604] CALL, EXPR misc_register(& vhost_net_misc) [L11595] return __VERIFIER_nondet_int(); [L10604] RET, EXPR misc_register(& vhost_net_misc) [L10604] tmp = misc_register(& vhost_net_misc) [L10605] return (tmp); VAL [\result=0, __this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, tmp=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10639] RET, EXPR vhost_net_init() [L10639] tmp = vhost_net_init() [L10640] COND FALSE !(tmp != 0) VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, vhost_net_fops={215:0}, vhost_net_misc={216:0}, vhost_zcopy_mask=0] [L10682] tmp___1 = __VERIFIER_nondet_int() [L10683] COND TRUE tmp___1 != 0 || ldv_s_vhost_net_fops_file_operations != 0 VAL [__this_module={18446744073709551616:18446744073709551618}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___1=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: 38.7s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 35.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 19514 SdHoareTripleChecker+Valid, 33.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18450 mSDsluCounter, 38274 SdHoareTripleChecker+Invalid, 31.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14085 mSDsCounter, 3950 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15011 IncrementalHoareTripleChecker+Invalid, 18968 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3950 mSolverCounterUnsat, 24189 mSDtfsCounter, 15011 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: 1.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 850 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 307 ConstructedInterpolants, 0 QuantifiedInterpolants, 487 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-21 10:17:23,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 10:17:25,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:17:25,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:17:25,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:17:25,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:17:25,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:17:25,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:17:25,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:17:25,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:17:25,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:17:25,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:17:25,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:17:25,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:17:25,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:17:25,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:17:25,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:17:25,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:17:25,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:17:25,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:17:25,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:17:25,659 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:17:25,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:17:25,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:17:25,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:17:25,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:17:25,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:17:25,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:17:25,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:17:25,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:17:25,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:17:25,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:17:25,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:17:25,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:17:25,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:17:25,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:17:25,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:17:25,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:17:25,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:17:25,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:17:25,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:17:25,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:17:25,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:17:25,684 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 10:17:25,723 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:17:25,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:17:25,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:17:25,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:17:25,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:17:25,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:17:25,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:17:25,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:17:25,726 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:17:25,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:17:25,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:17:25,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:17:25,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:17:25,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:17:25,728 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 10:17:25,728 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 10:17:25,728 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 10:17:25,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:17:25,728 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:17:25,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:17:25,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:17:25,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:17:25,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:17:25,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:17:25,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:17:25,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:17:25,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:17:25,730 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 10:17:25,730 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 10:17:25,731 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:17:25,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:17:25,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:17:25,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 10:17:25,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f [2022-07-21 10:17:26,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:17:26,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:17:26,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:17:26,044 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:17:26,044 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:17:26,045 INFO L432 ainManager$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 [2022-07-21 10:17:26,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1807b3e2/c01ac9f3dffb41de8b31cf20e7daa635/FLAG1bb4ad21a [2022-07-21 10:17:26,918 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:17:26,919 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 [2022-07-21 10:17:26,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1807b3e2/c01ac9f3dffb41de8b31cf20e7daa635/FLAG1bb4ad21a [2022-07-21 10:17:27,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1807b3e2/c01ac9f3dffb41de8b31cf20e7daa635 [2022-07-21 10:17:27,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:17:27,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:17:27,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:17:27,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:17:27,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:17:27,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:17:27" (1/1) ... [2022-07-21 10:17:27,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5807f304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:17:27, skipping insertion in model container [2022-07-21 10:17:27,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:17:27" (1/1) ... [2022-07-21 10:17:27,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:17:27,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:17:28,895 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) [2022-07-21 10:17:28,902 INFO L158 Benchmark]: Toolchain (without parser) took 1473.40ms. Allocated memory was 58.7MB in the beginning and 79.7MB in the end (delta: 21.0MB). Free memory was 36.5MB in the beginning and 41.4MB in the end (delta: -4.9MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2022-07-21 10:17:28,902 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 40.7MB in the beginning and 40.6MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 10:17:28,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1470.32ms. Allocated memory was 58.7MB in the beginning and 79.7MB in the end (delta: 21.0MB). Free memory was 36.3MB in the beginning and 41.4MB in the end (delta: -5.1MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2022-07-21 10:17:28,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 40.7MB in the beginning and 40.6MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1470.32ms. Allocated memory was 58.7MB in the beginning and 79.7MB in the end (delta: 21.0MB). Free memory was 36.3MB in the beginning and 41.4MB in the end (delta: -5.1MB). Peak memory consumption was 32.9MB. 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